KINDAI UNIVERSITY


*A space between the first name and last name, please enter

SUZUKI Naoya

Profile

FacultyDepartment of Mechanical Engineering / Graduate School of Science and Engineering Research
PositionProfessor
Degree
Commentator Guidehttps://www.kindai.ac.jp/meikan/940-suzuki-naoya.html
URL
Mail
Last Updated :2020/04/04

Education and Career

Education

  •   1993 04  - 1997 03 , Tokai University, School of Marine Science and Technology
  •   1997 04  - 1999 03 , Tokai University

Academic & Professional Experience

  •   2020 04 ,  - 現在, Professor, Department of Mechanical Engineering, Faculty of Science and Engineering, Kindai University
  •   2012 04 ,  - 2020 03 , Associate Professor, Faculty of Science and Engineering, Department of Mechanical Engineering, Kindai University
  •   2008 04 ,  - 2012 03 , Faculty of Science and Engineering, Department of Mechanical Engineering, Kindai University
  •   2003 01 ,  - 2005 12 , Post Doctoral Fellow, Rosenstiel School of Marine and Atmospheric Science, University of Miami
  •   2005 01 ,  - 2005 03 , School of High-Technology for Human Welfare, Tokai University
  •   2002 10 ,  - 2002 12 , Center for Environmental Remote Sensing, Chiba University

Research Activities

Research Areas

  • Natural sciences, Atmospheric and hydrospheric science
  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Fluid engineering
  • Social infrastructure (civil Engineering, architecture, disaster prevention), Hydroengineering

Published Papers

  • Quantitative evaluation of anemometer motion compensation method using multiple IMU sensors, Hiroto Taniguchi, Naoya Suzuki, Gustavo Garcia, Atsutoshi Ikeda, 75(2), I_1303 - I_1308, Oct. 2019 , Refereed
  • Effect of ships on wind flow in ocean wind measurements using a numerical simulation, Naoya Suzuki, Takenobu Michioka, Masanori Konda, Kunio Kutsuwada, Yuji Masuda, Journal of Advanced Marine Science and Technology Society, Journal of Advanced Marine Science and Technology Society, 25(1), 1 - 14, Aug. 2019 , Refereed
  • Comparison of the accuracy of various global wind speed datasets obtained from satellites and reanalyses, Naoya Suzuki, Masanori Konda, Kunio Kutsuwada, Kyota Utsunomiya, Journal of Advanced Marine Science and Technology Society, Journal of Advanced Marine Science and Technology Society, 24(2), 31 - 37, Dec. 2018 , Refereed
  • Laboratory measurements of an equilibrium-range constant for wind waves at extremely high wind speeds, Naohisa Takagaki, Keita Takane, Hiroshige Kumamaru, Naoya Suzuki, Satoru Komori, Dynamics of Atmospheres and Oceans, Dynamics of Atmospheres and Oceans, 84, 22 - 32, Aug. 2018 , Refereed
  • Laboratory Measurements of heat transfer and drag coefficients at extremely high wind speeds, Satoru Komori, Koji Iwano, Naohisa Takagaki, Ryoichi Kurose, Ryo Onishi, Keiko Takahashi, Naoya Suzuki, Journal of Physical Oceanography, Journal of Physical Oceanography, 48(4), 959 - 974, Apr. 2018 , Refereed
  • Valuation of differences in global air-sea momentum flux during El Nino and La Nina phenomenon, Hiroto Iuchi, Naoya Suzuki, Naohisa Takagaki, Satoru Komori, Hiroya Tanida, Journal of Advanced Marine Science and Technology Society, Journal of Advanced Marine Science and Technology Society, 23(2), 1 - 7, Dec. 2017 , Refereed
  • Effect of Observation Tower on Wind Flow over the Ocean -First Assessment of the Applicability of Numerical Simulation Using CFD-, Naoya Suzuki, Takuji Waseda, Takenobu Michioka, Kosuke Tatsumi, Takeshi Takemoto, Journal of Advanced Marine Science and Technology Society, Journal of Advanced Marine Science and Technology Society, 23(1), 11 - 19, Jul. 2017 , Refereed
  • Mechanism of drag coefficient saturation at strong wind speeds, Naohisa Takagaki, Satoru Komori, Naoya Suzuki, Koji Iwano, Ryoichi Kurose, Geophysical Research Letters, Geophysical Research Letters, 43, Sep. 2016 , Refereed
  • A New Professional Development Program for Graduate Student in the Science and Engineering Field, Masako Terui, Naoya Suzuki, George Truscott, Journal of Japanese Society for Enginnering Education, Journal of Japanese Society for Enginnering Education, 64(5), 123 - 127, Sep. 2016 , Refereed
  • Effect of Difference in Sea Surface Temperature for Global Air-Sea CO2 Gas Flux, Yuya Nagao, Naoya Suzuki, Naohisa Takagaki, Satoru Komori, Masako Terui, Journal of Advanced Marine Science and Technology Society, Journal of Advanced Marine Science and Technology Society, 22(1), 73 - 78, Jun. 2016 , Refereed
  • Effect of difference in drag coefficient models for low wind speed range on flobal air-sea momentum flux estimation, Hiroto Iuchi, Naoya Suzuki, Naohisa Takagaki, Satoru Komori, Masako Terui, Journal of Advanced Marine Science and Technology Society, Journal of Advanced Marine Science and Technology Society, 22(1), 63 - 71, Jun. 2016 , Refereed
  • Estimation of friction velocity from the wind-wave spectrum at extremely high wind speeds, Naohisa Takagaki, Satoru Komori, Naoya Suzuki, IOP Conference Series: Earth and Environmental Science, IOP Conference Series: Earth and Environmental Science, 35(1), 2016 , Refereed
  • Effect of drag coefficient models concerning global air-sea momentum flux in extreme wind speed tange, Tekeshi Takemoto, Naoya Suzuki, Naohisa Takagaki, Satoru Komori, Masako Terui, Journal of Advanced Marine Science and Technokogy Society, Journal of Advanced Marine Science and Technokogy Society, 21(2), 65 - 68, Dec. 2015 , Refereed
  • Comparison of the global air-sea CO2 gas flux on the difference of transfer velocity model, Naoya Suzuki, Mark A. Donelan, Naohisa Takagaki, Satoru Komori, Journal of Advanced Marine Science and Technology Society, Journal of Advanced Marine Science and Technology Society, 21(2), 59 - 63, Dec. 2015 , Refereed
  • Estimation of the global air-sea CO2 gas flux considering wave breaking, Naoya Suzuki, Mark A. Donelan, Satoru Komori, Naohisa Takagaki, Journal of Oceanography, Journal of Oceanography, Jan. 2015 , Refereed
  • Variation of the drag coefficient investigated using tower-based long period measurement –Condition with following and cross swell-, Naoya Suzuki, Yoshiaki Toba, Satoru Komori, Naohisa Takagaki, Yasuyuki Baba, Teruhiro Kubo, Kohei Shintaku, Masao Yamamoto, Proc. of ISOPE2013, Proc. of ISOPE2013, 590 - 595, 2013 , Refereed
  • Strong correlation between the drag coefficient and the shape of the wind sea spectrum over a broad range of wind speeds, Naohisa Takagaki, Satoru Komori, Naoya Suzuki, Koji Iwano, Takenori Kuramoto, Satoshi Shimada, Ryoichi Kurose, Keiko Takahashi, Geophysical Research Letters, Geophysical Research Letters, 39(L23604), doi:10.1029/2012GRL053988, 2012 , Refereed
  • The effect of wind variability on the air-sea CO2 gas flux estimation, Naoya Suzuki, Satoru Komori, Mark A. Donelan, Gas Transfer at Water Surfaces 2010 Edited by S. Komori, W. McGillis, R. Kurose, Gas Transfer at Water Surfaces 2010 Edited by S. Komori, W. McGillis, R. Kurose, 445 - 451, 2011 , Refereed
  • -, 66(1), 101 - 105, 2010 , Refereed
  • Examination of drag coefficient with special reference to the windsea Reynolds number –Condition with counter and mixed swell-, Naoya Suzuki, Yoshiaki Toba, Satoru Komori, Journal of Oceanography, Journal of Oceanography, 66, 731 - 739, 2010 , Refereed
  • The effect of swell on wind stress over the ocean –Examination of the drag coefficient with special reference to the windsea Reynolds number-, Naoya Suzuki, Yoshiaki Toba, Satoru Komori, Hiroshi Yoshioka, Shigeatsu Serizawa, Yasunori Muto, Proceedings of Techno- Ocean 2010, Proceedings of Techno- Ocean 2010, 1 - 4, 2010
  • Direct numerical simulation of wind-driven turbulence and scalar transfer at sheared gas-liquid interfaces, Satoru Komori, Ryoichi Kurose, Koji Iwano, Takehiro Ukai, Naoya Suzuki, Journal of Turbulence, Journal of Turbulence, 11(32), 1 - 20, 2010 , Refereed
  • -, 工学教育(J. of JSEE), 工学教育(J. of JSEE), 58(2), 46 - 51, 2010 , Refereed
  • Heat and mass transfer across the wavy sheared interface in wind-driven turbulence, Satoru Komori, Ryoichi Kurose, Shuhei Ohtsubo, Kenji Tanno, Naoya Suzuki, Proceedings of The Sixth International Symposium on Turbulence and Shear Flow Phenomena 2009 (TSFP6), Proceedings of The Sixth International Symposium on Turbulence and Shear Flow Phenomena 2009 (TSFP6), 2, 399 - 407, 2009 , Refereed
  • Improvement of the ADEOS-II/GLI sun-glint algorithm using concomitant microwave scatterometer-derived wind data, Hajime Fukushima, Kazunori Suzuki, Liping Li, Naoya Suzuki, Hiroshi Murakami, J. of Advances in Space Research, J. of Advances in Space Research, 43, 941 - 947, 2009 , Refereed
  • Discrimination of spurious self-correlation in nondimensionalized analyses of fluid dynamical data., Yoshiaki Toba, Naoya Suzuki, Satoru Komori, Journal of Oceanography, Journal of Oceanography, 64, 393 - 397, 2008 , Refereed
  • Optimization of Cox and Munk sun-glint model using ADEOS/II GLI data and SeaWinds data, Liping Li, Hajime Fukushima, Kazunori Suzuki, Naoya Suzuki, Proceedings of SPIE Coastal Ocean Remote Sensing, Proceedings of SPIE Coastal Ocean Remote Sensing, 6680(668006), doi:10.1117/12.732779, Oct. 2007 , Refereed
  • The effects of raindrops on interfacial turbulence and air-water gas transfer, Satoru Komori, Naohisa Takagaki, Rina Saiki, Naoya Suzuki, Kenji Tanno, Transport at the Air Sea Interface –Measurements, Models and Parameterizations (eds. C. S. Garbe, R. A. Handler & B. Jahne), Springer Verlag, Transport at the Air Sea Interface –Measurements, Models and Parameterizations (eds. C. S. Garbe, R. A. Handler & B. Jahne), Springer Verlag, 169 - 179, 2007 , Refereed
  • On the sub-grid scale variability of oceanic winds and the accuracy of numerical weather prediction models as deduced from QuikSCAT backscatter distributions, Naoya Suzuki, Mark A. Donelan, William J. Plant, J. Geophys. Res., J. Geophys. Res., 112(C04005), doi:10.1029/2005JC003437, 2007 , Refereed
  • Study for Estimation of Air-Sea CO2 Gas Transfer by Wave Breaking Model using Satellite Data –Estimation of the friction velocity considering wave effect-, Naoya Suzuki, Naoto Ebuchi, Chaofang Zhao, Takahiro Osawa, Takashi Moriyama, International Journal of Remote Sensing and Earth Sciences, International Journal of Remote Sensing and Earth Sciences, 1(1), 50 - 57, 2004 , Refereed
  • Study of the relationship between non-dimensional roughness length and wave age, effected by wave directionality, Naoya Suzuki, Naoto Ebuchi, Chaofang Zhao, Isao Watabe, Yasuhiro Sugimori, J. Proc. Indian Acad. Sci. (J. of Earth Planet. Sci.), J. Proc. Indian Acad. Sci. (J. of Earth Planet. Sci.), 111(3), 305 - 313, 2002 , Refereed
  • Analysis of the relationship between non-dimensional roughness length and wave age, effected by wave directionality – Study for estimation of air-sea CO2 gas transfer by wave breaking model using satellite data-, Naoya Suzuki, Naoto Ebuchi, Chaofang Zhao, Daisuke Kobayashi, Ae-Sook Suh, Yasuhiro Sugimori, Proceedings of PORSEC2002, Proceedings of PORSEC2002, 1, 245 - 250, 2002 , Refereed
  • Study of the relationship between non-dimensional roughness length and wave age, dependent on fetch effect, Naoya Suzuki, Naoto Ebuchi, Chaofag Zhao, Isao Watabe, Pednekar Shailesh M, Yasuhiro Sugimori, Proceedings of PORSEC2002, Proceedings of PORSEC2002, 1, 239 - 244, 2002 , Refereed
  • Analysis of Various Components on the Relationship between Non-dimensional Roughness Length and Wave Age, Naoya Suzuki, Naoto Ebuchi, Chaofang Zhao, Daisuke Kobayashi, Isao Watabe, Yasuhiro Sugimori, Proceedings of ISOPE2002, Proceedings of ISOPE2002, 55 - 59, 2002 , Refereed
  • Observation of Ocean and Prediction of Climate, Journal of Signal Processing, Journal of Signal Processing, 4(3), 209 - 222, 2000 , Refereed
  • Study of Air-Sea CO2 Gas Transfer on basis of Wave Breaking Model-Study of the relationship between non-dimensional roughness length and wave age, effected by wave directionality –, Naoya Suzuki, Naoto Ebuchi, Isao Watabe, Yasuhiro Sugimori, Proceedings of PORSEC2000, Proceedings of PORSEC2000, 1, 416 - 420, 2000 , Refereed
  • Advanced Analysis of the Relationship between Non-dimensional Roughness Length and Wave Age using Tower-based Measurements-For Study of Air-Sea CO2 Transfer using satellite data-, Naoya Suzuki, Naoto Ebuchi, Jun Suwa, Masatoshi Akiyama, Yasuhiro Sugimori, Proceedings of PORSEC2000, Proceedings of PORSEC2000, 1, 412 - 415, 2000 , Refereed
  • Relationship between non-dimensional roughness length and wave age investigated using tower-based measurements, Naoya Suzuki, Naoto Ebuchi, Masatoshi Akiyama, Jun Suwa, Yasuhiro Sugimori, J. Adv. Mar. Sci. Tech. Soci., J. Adv. Mar. Sci. Tech. Soci., 4(2), 217 - 224, 1998 , Refereed
  • Analysis of the relationship between non-dimensional roughness and wave age based on field measurements -On the basis of study for determination of CO2 transfer at sea surface uisng satellite data-, Naoya Suzuki, Naoto Ebuchi, Masatoshi Akiyama, Yasuhiro Sugimori, Proc. of PORSEC1998, Proc. of PORSEC1998, 639 - 643, 1998 , Refereed

Conference Activities & Talks

  • Effect of the fluctuation of the wind speed and direction on the drag coefficient investigated using tower-based measurements, Naoya Suzuki, Takuji Waseda, AGU, Ocean Sciences Meeting 2020,   2020 02 20
  • Development of the loop method on long-fetch conditions in wind wave tank, Yusuke Uemura, Naohisa Takagaki, Naoya Suzuki, AGU, Ocean Sciences Meeting 2020,   2020 02 20
  • Effect of component waves on drag coefficient in laboratory experiment, Rikuya Maekawa, Naoya Suzuki, Naohisa Takagaki, AGU, Ocean Sciences Meeting 2020,   2020 02 20
  • Measurement method of the wind stress at high wind speeds in laboratory experiment, Temma Onishi, Naohisa Takagaki, Naoya Suzuki, AGU, Ocean Sciences Meeting 2020,   2020 02 19
  • Sea surface effects on the growth of wind wave in laboratory experiment, Chiaki Tanaka, Naoya Suzuki, Naohisa Takagaki, Yuliya Troitskaya, Satoru Komori, Alexander Kandaurov, Maxim Vdovin, Masanori Konda, AGU, Ocean Sciences Meeting 2020,   2020 02 19
  • Rotational motion compensation towards precise wind speed measurement on the sea, Hiroto Taniguchi, Naoya Suzuki, Gustavo Garcia, Atsutoshi Ikeda, AGU, Ocean Sciences Meeting 2020,   2020 02 17
  • Analysis of the wind stress measured using tower-based long period measurements, Naoya Suzuki, Takuji Waseda, Mark A. Donelan, Takenobu Michioka, 2018 AGU Ocean Sciences Meeting,   2018 02 11
  • Effect of observation tower on variability of the wind stress –Field observation and numerical simulation-, Hiroto Iuchi, Naoya Suzuki, Takenobu Michioka, Takuji Waseda, Hitoshi Tamura, Kaoru Ichikawa, 2018 AGU Ocean Sciences Meeting,   2018 02 11
  • Numerical Simulation of Wind Flow around an Ocean Observation Tower –First Assessment of the Applicability of Numerical Simulation-, Hiroto Iuchi, Takeshi Takemoto, Naoya Suzuki, Takenobu Michioka, Takuji Waseda, Hitoshi Tamura, Kaoru Ichikawa, JpGU-AGU Joint Meeting 2017,   2017 05 20
  • Effect of drag coefficient models concerning global air-sea momentum flux in broad wind range including extreme wind speeds, Takeshi Takemoto, Naoya Suzuki, Naohisa Takagaki, Satoru Komori, Masako Terui, George Truscott, WASET (World Academy of Science, Engineering and Technology) 18th International Conference on Environmental and Earth Systems Engineering,   2016 03 03
  • Evaluation of a GPS wave buoy for wind stress measurements using large wave tank, Naoya Suzuki, Takuji Waseda, Mark A. Donelan, Takeshi Kinoshita, AGU Ocean Sciences Meeting,   2016 02 21
  • Laboratory measurements of momentum, heat and mass transfer across the air-water interface at high wind speeds, Satoru Komori, Koji Iwano, Naohisa Takagaki, Ryoichi Kurose, Ryo Onishi, Naoya Suzuki, The 7th International Symposium on Gas Transfer at Water Surface,   2015 05 18 , 招待有り
  • Spectral shape of wind waves at extreme high wind speeds, Naohisa Takagaki, Satoru Komori, Koji Iwano, Ryoichi Kurose, Naoya Suzuki, The 7th International Symposium on Gas Transfer at Water Surface,   2015 05 18 , 招待有り
  • Large tank evaluation of a GPS wave buoy for wind stress measurements., Naoya Suzuki, Takuji Waseda, Mark A. Donelan, Takeshi Kinoshita, The 7th International Symposium on Gas Transfer at Water Surface,   2015 05 18
  • Wind speed and latent heat flux retrieved by simultaneous observation of multiple geophysical parameters derived by AMSR2, Masanori Konda, Naoya Suzuki, Kunio Kutsuwada, AOGS 2014 (Asia Oceania Geosciences Society),   2014 07 28
  • The direct measurement of sea surface turbulent fluxes on the ship in the Kuroshio-Kuroshio extension region, Masanori Konda, Kazuyuki Uehara, Kunio Kutsuwada, Naoya Suzuki, AOGS 2014 (Asia Oceania Geosciences Society),   2014 07 28
  • Estimation of the global air-sea CO2 gas flux considering wave breaking, Naoya Suzuki, Mark A. Donelan, Jun Masuda, Satoru Komori, Naohisa Takagaki, Kohei Shintaku, Masao Yamamoto, 2014 AGU Ocean Sciences Meeting,   2014 02 23
  • Variation of the Drag Coefficient Investigated Using Tower-Based Long Period Measurements - Condition with Following and Cross Swell -, International Society of Offshore and Polar Engineers (ISOPE),   2013 07 , International Society of Offshore and Polar Engineers (ISOPE)
  • Variation of the drag coefficient investigated using tower-based long period measurements, 2012 Ocean Sciences Meeting,   2012 02 , 2012 Ocean Sciences Meeting
  • The effect of wind variability on the air-sea CO2 gas flux estimation, The 6th International Symposium on Gas Transfer at Water Surfaces,   2010 05 , The 6th International Symposium on Gas Transfer at Water Surfaces
  • The effect of wind variability on the air-sea CO2 gas estimation, The 6th International Symposium on Gas Transfer at Water Surfaces,   2010 05 , The 6th International Symposium on Gas Transfer at Water Surfaces
  • Improved expression of the drag coefficient with special reference to the windsea Reynolds number ? Conditions with counter, cross and following swell-, 2010 AGU Ocean Sciences Meeting,   2010 02 , 2010 AGU Ocean Sciences Meeting
  • Effects of rainfall on mass transfer across the air-sea interface: Part 2. Estimation of the global air-sea CO2 flux due to rainfall effects, IIASA ? Kyoto University the fourth joint international seminar on applied analysis and synthesis o,   2007 06 , IIASA ? Kyoto University the fourth joint international seminar on applied analysis and synthesis o
  • The effect of swell on wind stress over the ocean,   2006 12
  • Improvements of satellite sun-glint algorithm using concomitant microwave scatterometer-derived wind data, 36th Committee on Space Research (COSPAR) Scientific Assembly,   2006 07 , 36th Committee on Space Research (COSPAR) Scientific Assembly
  • Reexamination of “Cox and Munk” type ocean surface model based on concurrent ADEOS-II/GLI and SeaWinds data, Society of Photo-Optical Instrumentation Engineers (SPIE),   2005 09 , Society of Photo-Optical Instrumentation Engineers (SPIE)
  • On the variability of Oceanic winds as deduced from QuikSCAT backscatter distributions, American Geophysical Union (AGU) Ocean Science Meeting,   2004 01 , American Geophysical Union (AGU) Ocean Science Meeting
  • On the variability of Oceanic winds as deduced from QuikSCAT backscatter distributions, Ocean Vector Winds Science Team Meeting,   2003 09 , Ocean Vector Winds Science Team Meeting
  • Study for estimation of air-sea CO2 gas transfer by wave breaking model using satellite data, International Union of Geodesy and Geophysics (IUGG) 2003,   2003 07 , International Union of Geodesy and Geophysics (IUGG) 2003
  • Study of Air-Sea CO2 Gas Transfer Velocity based on The Whitecap Model using Satellite Data, The World Ocean Circulation Experiment (WOCE) Workshop,   2002 11 , The World Ocean Circulation Experiment (WOCE) Workshop
  • Study for Estimation of Air-sea CO2 Gas Transfer by Wave Breaking Model using Satellite Data - Analysis of the relationship between non-dimensional roughness length and wave age, dependent on fetch effect ?,   2002 11
  • Study of relation between non-dimensional roughness and wave age and friction velocity (u*) to wind speed (U10), Yasuhiro Sugimori, Naoya Suzuki, Chaofang Zhao, Jun Suwa, The World Ocean Circulation Experiment (WOCE) Workshop,   2001 06 , The World Ocean Circulation Experiment (WOCE) Workshop
  • Global mapping of air-sea CO2 gas transfer velocity by breaking model using satellite data, The World Ocean Circulation Experiment (WOCE) Workshop,   2001 06 , The World Ocean Circulation Experiment (WOCE) Workshop
  • Estimation of Air-Sea CO2 Gas Transfer Velocity on basis of Wave Breaking Model, Global Change Open Science Conference,   2001 06 , Global Change Open Science Conference
  • Study of the CO2 flux estimation in global ocean using satellite data, Naoya Suzuki, Takahiro Osawa, Jun Suwa, Masatoshi Akiyama, Yasuhiro Sugimori, The World Ocean Circulation Experiment (WOCE) /Climate Variability (CLIVER) Variability Workshop,   2000 10
  • Advanced analysis of the Relationship between Non-dimensional Roughness Length and Wave Age based on Field Measurements -Study of Air-Sea CO2 Transfer using satellite data-, Naoya Suzuki, Tadashi Kayama, Naoto Ebuchi, Jun Suwa, Yasuhiro Sugimori, 4th International Symposium on Gas Transfer at Water Surface,   2000 06

Misc

  • Generation method of wind waves under long-fetch conditions over a broad range of wind speeds, Takagaki Naohisa, Komori Satoru, Iwano Koji, Suzuki Naoya, Kumamaru Hiroshige, IUTAM SYMPOSIUM ON WIND WAVES, 26, 184-193,   2018 , 10.1016/j.piutam.2018.03.018
  • A Creative Educational Program for Department of Mechanical Engineering Using Bipedal Walking Robot, HARADA Takashi, OHTSUBO Yoshikazu, HASHIMOTO Tomohisa, SUZUKI Naoya, Journal of JSEE, 58, 2, 46, 51,   2010 03 20 , 10.4307/jsee.58.2_46, http://ci.nii.ac.jp/naid/10026521046
    Summary:A creative educational program for department of mechanical engineering using bipedal walking robot is introduced. For educating in the mechanical engineering, we focused on kinematics and dynamics about the robot. The educational program was tested for university freshmen for a great number of people of 100 scales. They were divided into 10 groups with 10 peoples. A bipedal walking robot "e-nuvo WALK ver. 3" and software for the robot was given for each group. Robotic floor exercise in two minutes after one minute presentation was given for each group as a challenge. Guidance of the robot, group work and competition were lectured in 6 weeks. In this paper, tools, equipment, preparation and execution of the educational program are introduced in detail.
  • Effects of Rain on CO_2 Transfer Across Air-Sea Interface, TAKAGAKI Naohisa, KOMORI Satoru, SUZUKI Naoya, Bulletin of the Society of Sea Water Science, Japan, 63, 4, 231, 236,   2009 08 01 , 10.11457/swsj.63.231, http://ci.nii.ac.jp/naid/10025009781

Research Grants & Projects

  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(基盤研究(B)), A study on breaking wind waves with white caps by means of Visualization with high-speed video cameras, In order to understand the mechanism of gas-transfer at wind waves with whitecaps, a PTV measurement technique was developed to measure flow fields under wind wave. The measurement technique was applied to flow field under white-cap which occurred by wind wave braking. The properties of air flows over wind waves and bubbles which generated by wave breaking were also measured by image processing techniques. In addition, global CO_2 exchange between air-sea by breaking waves was estimated by the field measurement data and satellite data.
  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(基盤研究(A)), Effects of rainfall and wind shear on mass transfer across the air-water interface, The measurements in a wind-wave tank with a rain generator shows that mass transfer across the wind-sheared air-water interface is promoted by rainfall and that the mass transfer coefficient in the combined condition with both rainfall and wind-shear is generally estimated by the sum of the individual mass transfer coefficient for rainfall and that for wind-shear. In addition, both experimental and numerical predictions show that the impingement of a single liquid drop on the water surface generates the surface renewal motion on the liquid side and enhances the mass transfer across the air-water interface.
  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(若手研究(B)), The effect of Swell on drag coefficient over the ocean
  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(基盤研究(S)), Scalar Transfer Mechanisms at the Sheared Air-Water Interface : Estimation of Scalar Transfer Rate, It is of great importance to investigate scalar (heat and mass) transfer mechanism across the air-sea interface in order to improve the reliability of predictions for global warming. However, previous sub-models used in a general circulation model for predicting heat and mass transfer velocities across the air-sea interface have been based on the simple assumption that the transfer velocities are proportional to wind velocity over the ocean surface. This rough assumption reduces the reliability of the sub-models. The aim of this study is, therefore, to clarify the scalar transfer mechanism across the sheared air-water interface from the fluid-mechanical point of view and to develop reliable models for the scalar transfer velocity that truly reflects the physical processes involved.The effects of wind speed, fetch, swell, surface contamination, thermal stratification, entrained bubbles, dispersing droplets and rainfall on the mass transfer across the air-water interface have been investigated by carrying out both laboratory experiments and numerical simulation. The results show that the mass transfer velocity k_L, is not simply proportional to the wind speed and it has a kink in the middle wind speed region. The mass transfer velocity is well correlated with the frequency of the appearance of the surface-renewal eddies, since the mass transfer across the sheared air-water interface is controlled by the surface-renewal eddies. The effect of fetch on k_L is compensated when the free-stream wind speed is used as a wind parameter. Both swell and surface contaminants reduce the mass transfer but the thermal stratification in the water flow does not affect the mass transfer because of strong wind-driven turbulence. The entrained bubbles due to intense wave breaking in the high wind speed region significantly promote the mass transfer but the effect of dispersing droplets is negligibly small. The rainfall enhances the mass transfer across the air-water interface and the promotion effect is well described by the momentum flux of rainfall. The details of the results should be refereed to our published articles.