Yoshihisa Kawahara

Last Updated :2021/03/01

Affiliations, Positions
Office of Academic Research and Industry-Academia-Government and Community Collaboration, Professor (Special Appointment)
E-mail
kawahrhiroshima-u.ac.jp

Basic Information

Academic Degrees

  • Doctor of Engineering, The University of Tokyo

Research Fields

  • Engineering;Civil engineering;Hydraulic engineering

Research Keywords

  • turbulent flows in open channels|turbulence modeling|vegetation modeling
  • localized heavy rainfall|numerical simulation|meteorological radar
  • river environment|flushing flow|sediment transport
  • integrated inundation analysis
  • river survey|aerial photogrammetry|laser survey|UAV
  • hydrological modeling|subsurface flow
  • reservoir|eutrophication

Affiliated Academic Societies

  • Japan Society of Civil Engineers, 1980
  • The Japan Society of Hydrology and Water Resources, 1993
  • Meteorological Society of Japan, 1995
  • Japan Society of Fluid Mechanics, 1980
  • International Association for Hydro-Environment Engineering and Research, 1990
  • American Society of Civil Engineers, 1997
  • The Japan River Association, 2004

Educational Activity

Course in Charge

  1. 2020, Undergraduate Education, 1Term, Hydrology and Water Resource Engineering
  2. 2020, Graduate Education (Master's Program) , Second Semester, Civil and Environmental Engineering Research IIB
  3. 2020, Graduate Education (Master's Program) , First Semester, Civil and Environmental Engineering Research IIB
  4. 2020, Graduate Education (Master's Program) , First Semester, Civil and Environmental Engineering Research IB
  5. 2020, Graduate Education (Master's Program) , First Semester, Civil and Environmental Engineering Research IIA
  6. 2020, Graduate Education (Master's Program) , Second Semester, Civil and Environmental Engineering Research IIA
  7. 2020, Graduate Education (Master's Program) , First Semester, Civil and Environmental Engineering Seminar IB
  8. 2020, Graduate Education (Master's Program) , First Semester, Civil and Environmental Engineering Seminar IIA
  9. 2020, Graduate Education (Master's Program) , Second Semester, Civil and Environmental Engineering Seminar IIA
  10. 2020, Graduate Education (Master's Program) , Second Semester, Civil and Environmental Engineering Seminar IIB
  11. 2020, Graduate Education (Master's Program) , First Semester, Civil and Environmental Engineering Seminar IIB
  12. 2020, Graduate Education (Master's Program) , 1Term, Special Exercises on Civil and Environmental Engineering A
  13. 2020, Graduate Education (Master's Program) , 2Term, Special Exercises on Civil and Environmental Engineering A
  14. 2020, Graduate Education (Master's Program) , 3Term, Special Exercises on Civil and Environmental Engineering B
  15. 2020, Graduate Education (Master's Program) , 4Term, Special Exercises on Civil and Environmental Engineering B
  16. 2020, Graduate Education (Master's Program) , Academic Year, Special Study on Civil and Environmental Engineering
  17. 2020, Graduate Education (Doctoral Program) , Academic Year, Special Study on Civil and Environmental Engineering

Research Activities

Academic Papers

  1. Research on Passive Contaminant Transport in a Vegetated Channel, JOURNAL OF ENVIRONMENTAL INFORMATICS, 33(1), 28-36, 201903
  2. 1D numerical analysis of open channel flows with emergent vegetation, Proc. 12th International Symposium on Ecohydraulics (ISE 2018), 20180824
  3. A depth-integrated model for calculating non-equilibrium velocity distribution of flow through a submerged vegetation zone, Proc. 12th International Symposium on Ecohydraulics (ISE 2018), 20180824
  4. Investigating reservoir regulations under climate change scenarios, Proc. of 37th IAHR World Congress, 4485-4491, 20170815
  5. Numerical prediction of localized heavy rain by WRF-ARW model with X-band radar data assimilation, Proc. of 37th IAHR World Congress, 2419-2426, 20170815
  6. Numerical simulation of inundation due to probable maximum precipitation in Hiroshima city, Proc. of 37th IAHR World Congress, 4204-4211, 20170815
  7. Open channel flow passing through submerged vegetation zone, Proc. of 4th International Symposium on Shallow Flows, 20170627
  8. Railway embankment failure due to ballast layer breach caused by inundation flows, Natural Hazards, 87(2), 717-738, 20170301
  9. A new geophone device for understanding environmental impacts caused by gravel bedload during artificial floods, Water Resources Research, 53, 1491-1508, 20170201
  10. Development of fragility curves for railway embankment and ballast scour due to overtopping flood flow, Natural Hazards and Earth System Sciences, 16, 2455-2472, 20161129
  11. Analysis of heavy rain in Hiroshima based on X-band multi-parameter radars, Proc. 20th APD-IAHR Congress, 1-7, 20160830
  12. Numerical simulation of localized torrential heavy rainfall in Hiroshima, Proc. 20th APD-IAHR Congress, 1-8, 20160829
  13. UAV photogrammetry for monitoring changes in river topography and vegetation, Procedia Engineering, 154, 317-325, 20160822
  14. Drag coefficient distribution in LES of vegetated open channel flows, River Flow 2016, 2240-2245, 20160714
  15. Study on bar formation with bed material of low density, Proc. IAHR 2015, 1-7, 20150630
  16. Influence of model drag coefficient on LES prediction accuracy of vegetated open-channel flows, Proc. IAHR 2015, 1-4, 20150630
  17. Analysis of 3-d unprecedented torrential and convective rainfall by high resolution x-band radar precipitation, Proc. IAHR 2015, 1-9, 20150630
  18. Numerical estimation of saltation gravel transported on irregular bed, Proc. IAHR 2015, 1-3, 20150630
  19. Impacts of vegetation configuration on flow structure and resistance in a rectangular open channel, JOURNAL OF HYDRO-ENVIRONMENT RESEARCH, 9(2), 295-303, 20150601
  20. LES of Turbulent flows in open channel with patched vegetation zones, International Conference on Fluvial Hydraulics (River Flow 2014), 409-418, 20140901
  21. Effects of trees along floodplain edges on the flow structure in compound meandering channel, 483-490, 20140901
  22. Research on passive contaminant transport in a vegetated channel, International Conference on Marine and Freshwater Environments (iMFE 2014), 1-10, 20140801
  23. Removal of aquatic plant in gravel river during flushing discharge, International Conference on Ecohydraulics (ISE2014), 1-8, 20140601
  24. Spatio-temporal distribution of bedload transport in gravel river during flushing discharge and its impact on aquatic vegetation, International Conference on Ecohydraulics (ISE2014), 10, 1-4, 20140601
  25. The uncertainty of local flow parameters during inundation flow over complex topographies with elevation errors, JOURNAL OF HYDROLOGY, 486, 71-87, 20130412
  26. Analysis of geomorphic and hydraulic conditions causing railway embankment breach due to inundation caused by heavy rainfall, Journal of Hydraulic and Hydroscience Engineering, 30(1), 87-99, 20120501
  27. New 3-D flow interpolation method on moving ADCP data, Water Resources Research, 48(5), 20120322
  28. Solute transport in a compound open channel with emergent vegetation, Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering), 68(4), I_751-I_756, 20120201
  29. ★, Flow-vegetation interaction in a compound open channel with emergent vegetation, Journal of River Basin Management, 9(3&4), 247-256, 20111201
  30. Performance of a turbulence model for flows in partially vegetated open channels, Annual Journal of Hydraulic Engineering, JSCE, 55, S193-S198, 20110201
  31. Experimental and numerical analysis of open channel flows with emergent and submerged vegetation, Annual Journal of Hydraulic Engineering, JSCE, 54, 169-174, 20100201
  32. Experimental study of mean velocity distributions in open channels with emergent and submerged vegetation, Journal of Applied Mechanics, JSCE, 12, 663-672, 20090801
  33. 3d flood flow structures in a doubly meandering compound channel under dominant relative depth, Journal of Appied Mechanics, JSCE, 11, 735-743, 20080801
  34. Integrated modeling for inundation flows in urban areas, Proc. of World Environmental & Water Resource Congress 2008, 20080513
  35. Effect of longitudinal slope on flow pattern in a doubly meandering compound channel, Journal of Applied Mechanics, JSCE, 10, 903-910, 20070801
  36. Large-eddy simulation of straight compound channel flows, Proc. 4th Int. Symp. on Turbulence and Shear Flow Phenomena, 2, 565-570, 20050601
  37. Depth-averaged flow computation at a river confluence, Water and Maritime Engineering, 156(1), 73-83, 20030401
  38. Coupling simulation of water and energy budgets and analysis of urban development impact, Journal of Hydrological Engineering, 7, 302-311, 20020401
  39. Simulation of hydrological cycle in an urban catchment and effect evaluation of infiltration facilities, Journal of Hydroscience and Hydraulic Engineering, 19(1), 43-52, 20010401
  40. Development of WEP model and its application to an urban watershed, Hydrological Processes, 15, 2175-2194, 20010401
  41. Evaluation of modified k-ε models in simulating 3d flows over submerged spur dikes, Proc. 1st Symp. on Turbulent Shear Flow Phenomena, 1173-1178, 19990701
  42. Application of linear and non-linear k-ε models to flows around spur dikes, Annual Journal of Hydraulic Engineering, JSCE, 42, 643-648, 19980401
  43. Modelling of the moisture and heat flux at the vegetated landsurface, Annual Journal of Hydraulic Engineering, JSCE, 39, 171-176, 19950401
  44. High accuracy modeling of advection and advection-diffusion, J. Hydroscience and Hydraulic Engineering, 11(2), 39-48, 19940401
  45. A dimensional analysis of urban heat island intensity, Environmental Systems Research, 22, 261-266, 19940401
  46. An experimental investigation of unsteady flow compound channel flows - with vegetation or with embayment, Journal of The Graduate School and Faculty of Engineering, The University of Tokyo, III(2), 173-200, 19930401
  47. Multiobjective optimization of a multireservoir system with stochastic inflows, Annual Journal of Hydraulic Engineering, JSCE, 37, 63-68, 19930401
  48. Bed topography, bed shear stress distribution and velocity field in confluence, Annual Journal of Hydraulic Engineering, JSCE, 37, 373-378, 19930401
  49. Experimental investigation of flow in embayment, Annual Journal of Hydraulic Engineering, JSCE, 37, 503-510, 19930401
  50. A numerical investigation of the effect of a slight terrain slope on the urban heat island, J. Hydroscience and Hydraulic Engineering, 11(1), 51-58, 19930401
  51. Application of Reynolds stress model to the study of heat Island structure over a slightly inclined terrain, Journal of Wind Engineering and Industrial Aerodynamics, 46&47, 705-712, 19930401
  52. Three-dimensional structure of open channel flows, J. Hydroscience and Hydraulic Engineering, Special Issue, 151-176, 19930401
  53. 2-D sediment transport simulation in natural streams, Annual Journal of Hydraulic Engineering, JSCE, 36, 87-92, 19920401
  54. A numerical investigation of the effect of a slight terrain slope on the urban heat island,, Annual Journal of Hydraulic Engineering, JSCE, 36, 507-512, 19920401
  55. Bed topography, bed shear stress distribution and velocity field in confluence, Annual Journal of Hydraulic Engineering, JSCE, 34, 307-312, 19890401

Publications such as books

  1. 2009/03, Flow and Sediment Transport in Compound Channels, CRC Press, 2009, 03, Scholarly Book, Cocompilation, 9.810593635E9, 342

Invited Lecture, Oral Presentation, Poster Presentation

  1. Observation and numerical prediction of localized heavy rain in Hiroshima in August 2014, Kawahara, Yoshihisa, Kawahara,Y., and Kita, M., 16th International Conference on Civil and Environmental Engineering, 2017/11/13, With Invitation, English, Hiroshima University (Japan), Pukyong National University (Korea), Dalian University of Technology (China), National Central University (Taiwan) and National Cheng Kung University (Taiwan), National Cheng Kung University (Taiwan)
  2. Numerical prediction of localized heavy rain by WRF-ARW model with X-band radar data assimilation, Kita, Masato, Kita, M., Kawahara, Y. and Nyunt, C. T., 37th IAHR World Congress, 2017/08/15, Without Invitation, English, International Association for Hydro-Environment Engineering and Research, Putra World Trade Centre, Kuala Lumpur, Malaysia
  3. Numerical simulation of inundation due to probable maximum precipitation in Hiroshima city, Kawahara, Yoshihisa, Hayami, Naoki and Kawahara, Yoshihisa, 37th IAHR World Congress, 2017/08/15, Without Invitation, English, International Association for Hydro-Environment Engineering and Research, Putra World Trade Centre, Kuala Lumpur, Malaysia
  4. Investigating reservoir regulations under climate change scenarios, Cho Thanda Nyunt, Cho Thanda Nyunt and Kawahara, Yoshihisa, 37th IAHR World Congress, 2017/08/14, Without Invitation, English, International Association for Hydro-Environment Engineering and Research, Putra World Trade Centre, Kuala Lumpur, Malaysia
  5. Open channel flow passing through submerged vegetation zone, Ishihara, Shotaro, Ishihara, Shotaro and Kawahara, Yoshihisa, International Symposium on Shallow Water Flow, 2017/07/27, Without Invitation, English, International Association for Hydro-Environment Engineering and Research, Eindhoven, The Netherlands
  6. Study on bar formation with bed material of low density, Shunsuke TANAKA, Yoshihisa KAWAHARA, Ryota TSUBAKI, IAHR World Congress, 2015/07/01, Without Invitation, English, IAHR, Hague, The Netherlands
  7. Influence of model drag coefficient on LES prediction accuracy of vegetated open-channel flows, Satoshi YOKOJIMA, Yoshihisa KAWAHARA, IAHR World Congress, 2015/06/29, Without Invitation, English, IAHR, Hague, The Netherlands
  8. Analysis of 3-d unprecedented torrential and convective rainfall by high resolution x-band radar precipitation, Cho Thanda Nyunt, Boris KOLAR, Ryota TSUBAKI, Yoshihisa KAWAHARA, IAHR World Congress, 2015/06/29, Without Invitation, English, IAHR, Hague, The Netherlands
  9. Experimental study on bar formation with bed material of low density, Tanaka, S.; Kawahara, Y.; Tsubaki, R., International Conference on Civil and Environmental Engineering- 2014, 2014/09/23, Without Invitation, English, ICCEE Organizing Committee, Pukyong National University, Busan, South Korea
  10. Measurement of bed-load in gravel-bed river utilizing digital sound recorder, Tsuboshita, K.; Tsubaki, R.;Kawahara, Y. , International Conference on Civil and Environmental Engineering- 2014, 2014/09/23, Without Invitation, English, ICCEE Organizing Committee, Pukyong National University, Busan, South Korea
  11. Water issues in Ota River basin, Kawahara, Yoshihisa, INU Master’s Summer School for Environmental Science, Global Environmental Sustainability –Water Security-, 2014/08/08, With Invitation, English, International Network of Universities (INU), Hiroshima University
  12. Primary velocity distribution in open channels with different vegetation layout - experiment and numerical simulation-, Yoshihisa Kawahara, 4th Japan-Korea Mini-Symposium on Modeling and Measurement of Hydraulic Flow, 2014/03/28, With Invitation, English, Yonsei University, Korea., Yonsei University, Seoul, Korea.

External Funds

Acceptance Results of Competitive Funds

  1. 2015/04/01, 2016/03/31