KeiyaNishida

Last Updated :2019/10/09

Affiliations, Positions
Graduate School of Engineering, Professor
E-mail
nishidamec.hiroshima-u.ac.jp
Other Contact Details
1-4-1,Kagamiyama,Higashi-Hiroshima, Japan
TEL : (+81)082)424-755 FAX : (+81)082)422-719

Basic Information

Major Professional Backgrounds

  • 1982/01/01, 1990/03/31, Hiroshima University, Research Associate
  • 1980/01/01, 1982/03/31, Kubota Ltd., Internal Combustion Engine Division, Researcher
  • 1990/10/01, Hiroshima University, Associate Professor
  • 2011/04/01, Hiroshima University, Professor

Educational Backgrounds

  • Hiroshima University, Graduate School, Division of Engineering, Japan, 1978/04, 1980/03
  • Hiroshima University, Faculty of Engineering, Japan, 1974/04, 1978/03

Academic Degrees

  • Doctor of Engineering, Hiroshima University
  • Master of Engineering, Hiroshima University

Educational Activity

  • 【Bachelor Degree Program】School of Engineering : Cluster 1(Mechanical Systems, Transportation, Material and Energy)
  • 【Master's Program】Graduate School of Engineering : Mechanical Systems Engineering
  • 【Doctoral Program】Graduate School of Engineering : Mechanical Systems Engineering

In Charge of Primary Major Programs

  • Mechanical System Engineering

Research Fields

  • Engineering;Mechanical engineering;Thermal engineering

Research Keywords

  • Simulation
  • Nozzle
  • Laser diagnostics
  • Diesel Combustion
  • Spray
  • Combustion
  • Internal Combustion Engine
  • Atomization
  • Spray

Affiliated Academic Societies

  • Japan Society of Mechanical Engineers, 1977
  • Institute of Liquid Atomization and Spray Systems - Japan, 1992
  • Society of Automotive Engineers of Japan, 1980/10
  • The Japan Institute of Marine Engineering, 2002/09
  • Combustion Institute of Japan, 1985/07
  • Society of Automotive Engineers International, 1984/08

Educational Activity

Course in Charge

  1. 2019, Liberal Arts Education Program1, 2Term, Fuel, Combustion, and Contemporary Society
  2. 2019, Liberal Arts Education Program1, 2Term, Introductory Seminar for First-Year Students
  3. 2019, Liberal Arts Education Program1, 1Term, Introductory Seminar for First-Year Students
  4. 2019, Undergraduate Education, Second Semester, Experiments in Mechanical Engineering II
  5. 2019, Undergraduate Education, 2Term, Fluid Dynamics I
  6. 2019, Undergraduate Education, 4Term, Fluid Machinery
  7. 2019, Undergraduate Education, 3Term, Internal Combustion Engines
  8. 2019, Undergraduate Education, Second Semester, Advanced Mechanical Engineering
  9. 2019, Undergraduate Education, Second Semester, Mechanical Engineering Seminar
  10. 2019, Graduate Education (Master's Program) , 1Term, Applied Fluid Dynamics
  11. 2019, Graduate Education (Doctoral Program) , Year, Mechanical Systems Engineering Research V
  12. 2019, Graduate Education (Master's Program) , First Semester, Mechanical Systems Engineering Research IA
  13. 2019, Graduate Education (Master's Program) , Second Semester, Mechanical Systems Engineering Research IB
  14. 2019, Graduate Education (Master's Program) , First Semester, Mechanical Systems Engineering Research IIA
  15. 2019, Graduate Education (Master's Program) , Second Semester, Mechanical Systems Engineering Research IIB
  16. 2019, Graduate Education (Master's Program) , First Semester, Mechanical Systems Engineering Seminar IA
  17. 2019, Graduate Education (Master's Program) , Second Semester, Mechanical Systems Engineering Seminar IB
  18. 2019, Graduate Education (Master's Program) , First Semester, Mechanical Systems Engineering Seminar IIA
  19. 2019, Graduate Education (Master's Program) , Second Semester, Mechanical Systems Engineering Seminar IIB

Research Activities

Academic Papers

  1. Measurement of ambient air motion of DI gasoline spray by LIF-PIV, JSME INTERNATIONAL JOURNAL SERIES B-FLUIDS AND THERMAL ENGINEERING, 46(1), 25-30, 200302
  2. Characterization of droplets and vapor concentration distributions in split-injection diesel sprays by processing UV and visible images, JSME INTERNATIONAL JOURNAL SERIES B-FLUIDS AND THERMAL ENGINEERING, 46(1), 100-108, 200302
  3. Characteristics of the ignition and combustion of biodiesel fuel spray injected by a common-rail injection system for a direct-injection diesel engine, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING, 224(D12), 1581-1596, 2010
  4. Effect of injection temporal splitting on the characteristics of fuel-air mixture formation in a common rail diesel spray, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING, 218(D3), 323-331, 200403
  5. Imaging of vapor/liquid distributions of split-injected diesel sprays in a two-dimensional model combustion chamber, COMBUSTION SCIENCE AND TECHNOLOGY, 176(9), 1465-1491, 200409
  6. Spray characteristics of a group-hole nozzle for direct-injection diesel engines, ATOMIZATION AND SPRAYS, 16(1), 35-49, 2006
  7. Enhancement of stratified charge for DISI engines through split injection (Effect and its mechanism), JSME INTERNATIONAL JOURNAL SERIES B-FLUIDS AND THERMAL ENGINEERING, 48(4), 687-694, 200511
  8. Vapor distribution measurement of higher and lower volatile components in an evaporating fuel spray via laser absorption scattering (LAS) technique, COMBUSTION SCIENCE AND TECHNOLOGY, 179(5), 863-881, 2007
  9. Development of an lif image processing technique for measuring drop sizes in a pre-swirl spray, INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY, 9(4), 381-390, 200808
  10. An experimental study on flat-wall-impinging spray of microhole nozzles under ultra-high injection pressures, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING, 222(D9), 1731-1741, 200809
  11. Effect of split injection on stratified charge formation of direct injection spark ignition engines, INTERNATIONAL JOURNAL OF ENGINE RESEARCH, 8(2), 205-219, 200704
  12. Spray and mixture properties of evaporating fuel spray injected by hole-type direct injection diesel injector, INTERNATIONAL JOURNAL OF ENGINE RESEARCH, 9(4), 347-360, 200808
  13. An experimental and numerical study on sprays injected from two-hole nozzles for DISI engines, FUEL, 88(9), 1634-1642, 200909
  14. An investigation of mixture formation and in-cylinder combustion processes in direct injection diesel engines using group-hole nozzles, INTERNATIONAL JOURNAL OF ENGINE RESEARCH, 10(1), 27-44, 200902
  15. Flame structure of wall-impinging diesel fuel sprays injected by group-hole nozzles, COMBUSTION AND FLAME, 156(6), 1263-1277, 200906
  16. Improving diesel mixture preparation by optimization of orifice arrangements in a group-hole nozzle, INTERNATIONAL JOURNAL OF ENGINE RESEARCH, 11(2), 109-126, 2010
  17. Experimental and analytical study on biodiesel and diesel spray characteristics under ultra-high injection pressure, INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 31(4), 659-666, 201008
  18. Gas entrainment characteristics of diesel spray injected by a group-hole nozzle, FUEL, 89(11), 3287-3299, 201011
  19. Simulation and analysis of group-hole nozzle sprays using a gas jet superposition model, FUEL, 89(12), 3758-3772, 201012
  20. Laser absorption-scattering technique applied to asymmetric evaporating fuel sprays for simultaneous measurement of vapor/liquid mass distributions, APPLIED PHYSICS B-LASERS AND OPTICS, 101(1-2), 433-443, 201010
  21. An experimental investigation on spray, ignition and combustion characteristics of biodiesels, PROCEEDINGS OF THE COMBUSTION INSTITUTE, 33, 2071-2077, 2011
  22. Development and evaporation of group-hole nozzle sprays under various surrounding and impinging conditions of direct-injection diesel engines, INTERNATIONAL JOURNAL OF ENGINE RESEARCH, 12(1), 41-57, 2011
  23. Effects of ultra-high injection pressure and micro-hole nozzle on flame structure and soot formation of impinging diesel spray, APPLIED ENERGY, 88(5), 1620-1628, 201105
  24. Droplet size distribution and evaporation characteristics of fuel spray by a swirl type atomizer, FUEL, 90(7), 2367-2376, 201107
  25. Characteristics of Liquid Jet Atomization Across a High-Speed Airstream (1st Report, 2nd Report), Trans. Jpn. Soc. Mech. Eng. (B), 58, 552, 19920401
  26. Computerized Tomographic Study on the Internal Structure of a Spray Impinging on the Flat End of a Round Stick, JSAE Review, 13, 2, 19920401
  27. An Analysis of Diesel Flame Motion by Combustion Photographs, Trans. Jpn. Soc. Mech. Eng. (B), 56, 524, 19900401
  28. Evaporation and Combustion of a Single Fuel Drop in Supercritical Environments (1st Report, Observation of Evaporation and Combustion Processes on a Hot Wall), Transactions of the Japan Society of Mechanical Engineers(B), 59(564), 2550-2554, 19930401
  29. Evaporation and Combustion of a Single Fuel Drop in Supercritical Environments (2nd Report, Effect of Fuel Property), Transactions of the Japan Society of Mechanical Engineers(B), 59(564), 2555-2559, 19930401
  30. Evaporation and Combustion of a Single Fuel Drop in Supercritical Environments (3rd Report, Observation from the Lateral Side of a Drop on a Hot Wall, Transactions of the Japan Society of Mechanical Engineers(B), 59(567), 3631-3638, 19930401
  31. Simultaneous Measurement of Fuel Vapor Concentration and Droplets Density in an Evaporating Diesel Spray with Laser Light Absorption and Scattering(2nd Report, Results in High Temp rature and High Pressure Ambient Condition, Transactions of the Japan Society of Mechanical Engineers(B), 59(563), 2325-2333, 19930401
  32. Two-Dimensional Measurements of the Mixture Concentration in the Combustion Chamber of a Spark Ignition Engine (Effects of Fuel Injection Conditions and Intake Flow), Transactions of the Japan Society of Mechanical Engineers(B), 59(568), 4022-4029, 19930401
  33. PLIF Measurements of the Cyclic Variation of Mixture Concentration Distribution in the Combustion Chamber of a Spark Ignition Engine(2nd Report, Effects of Engine Operating Parameters), Transactions of the Japan Society of Mechanical Engineers(B), 60(572), 1478-1485, 19940401
  34. Three-Dimensionoal Spray Distributions in a Direct Injection Diesel Engine, SAE Paper, 941693, 19940401
  35. Imaging of Drop and vapour Clouds in an Evaporating Fuel Spray by Ultraviolet and Visible Lasers, Proceeding of The Third International Congress on Optical Particle Sizing, 363-370, 19940401
  36. Combustion of Coal-Oil Mixture Drop in a Microgravity Environment, Proceedings of the 4th ASME/JSME Thermal Engineering Joint Conference, 4, 519-526, 19950401
  37. Fuel Spray Distribution in Combustion Chamber and Its Emission Characteristics of D. I. Diesel Engine under High Injection Pressure, Proceedings of 21st International Congress on Combustion Engine(FISITA Session), F06, 19950401
  38. Combustion Characteristics of Stratified Mixture(2nd Report, Influence of Mixture Distribution on Combustion and Emission Characteristics in a Constant-Volume Combustion Chamber), Transactions of the Japan Society of Mechanical Engineers(B), 62(599), 2879-2886, 19960401
  39. Experiments and Modeling on Sparay Distributions in the Combustion Chamber of a Direct Injection Diesel Engine, SAE Paper, 1-15, 19960401
  40. Effects of the Internal Flow in a Nozzle Hole on the Breakup Process of a Liquid Jet(1st Report, Measurement of the Disturbance of the Internal Flow in the Nozzle Hole by Acceleration Transclucer), Atomization, 5(10), 56-63, 19960401
  41. Effects of the Internal Flow in a Nozzle Hole on the Breakup Processes of a Liquid Jet (2nd Report, Effects of Geometric Shapes of Nozzle and Ambient Pressures), Atomization, 5(11), 98-106, 19960401
  42. Analysis of Emission Formation Processes in a D. I. Diesel Engine by Total In-Cylinder Sampling(1st Report, Effects of L/D of Nozzle Hole and Piston Cavity Diameter), Transactions of the Japan Society of Mechanical Engineers(B), 63, 606, 19970401
  43. Analysis of Emission Formation Processes in D. I. Disel Engine by Total In-Cylinder Sampling(2nd Report, Effects of Intake Swirl Ratio and Fuel Injection Timing), Transactions of the Japan Society of Mechanical Engineers, 63, 606, 19970401
  44. Analysis of Emission Formation Processes in a Diesel Engine by Total In-Cylinder Sampling(3rd Report, Effect of Fuel Properties), Transactions of the Japan Society of Mechanical Engineers(B), 63, 606, 19970401
  45. Characteristics of Bubbling Liquid Jet Atomization across a High-Speed Airstream(Control of Spatial Distribution of Fuel Liquid and Combustion Gas Temperature), Proceedings of the 7th International Conference on Liquid Atomization and Spray Systems, 1, 247-254, 19970401
  46. Effects of the Internal Flow in a Nozzle Hole on Breakup Processes of a Liquid Jet, Proceedings of the 7th International Conference on Liquid Atomization and Spray Systems, 1, 417-424, 19970401
  47. Effects of Mixing Chamber Geometry and Flow on Spray Characteristics from on Internal Mixing Twin-Fluid Atomizer, Proceedings of the 7th International Conference on Liquid Atomization and Spray Systems, 1, 270-277, 19970401
  48. Three-Dimensional Measurement of Spray Droplet Size Distribution under Microgravity utilizing Pulse-Laser Holographic Method, The Japan Society of Microgravity Application, 15(2), 61-70, 19980401
  49. Spray and Ignition Characteristics of Dimethyl Ether Injected by a D. I. Diesel Injector, Proceedings of the 4th International Symposium on Diagnostics and Modeling of Combustion in Internal Combustion Engines(COMODIA98), 2132-2140, 19980401
  50. Exciplex Temperature Measurement of Liquid Phase in a Diesel Spray Impinging on an Inclined Wall, Proceedings of the 5th ASME/JSME Joint Thermal Engineering Conference, AJTE99-6477,1-6, 19990401
  51. Spatial Distribution Measurement of D. I. Gasoline Spray via Holographic Patternator, Proceedings of the 4th International Symposium on Internal Combustion Engines : Experiments and Modeling (ICE99), 515-522, 19990401
  52. A Visual Study of Transient Flows in a D. I. Diesel Injection Nozzle, Proceedings of the 2nd Pacific Symposium on Flow Visualization and Image Processing (PSFVIP-2), 1-12, 19990401
  53. Behavior of Split Injection D.I. Diesel Spray in Model Combustion Chamber(1st Report, Effect of Interval of Split Injection), Transactions of Japan Society of Mechanical Engineers(B), 66(643), 915-925, 20000401
  54. Scale Model Experiment of Flows in D.I. Diesel Injection Nozzle, Proceedings of the Sixth International Symposium on Marine Engineering ISME Tokyo 2000, 65-72, 20000401
  55. Behaviors of D.I. Diesel Sprays with Split Injection in a Model Combustion Chamber (1st Report, Effects of the Injection Interral), Transactions of the Japan Society of Mechanical Engineers(B), 66(643), 279, 20000401
  56. Behaviors of D.I. Diesel Sprays with Split Injection in a Model Combustion Chamber (2nd Report, Effects of Injection Mass Ratio), The Japan Society of Mechanical Engineers, 66(644), 1229-1236, 20000401
  57. Vapor distribution measurement of higher and lower volatile components in an evaporating fuel spray via laser absorption scattering (LAS) technique, COMBUSTION SCIENCE AND TECHNOLOGY, 179(5), 863-881, 2007
  58. EXPERIMENTAL STUDY ON SPRAY AND MIXTURE PROPERTIES OF THE GROUP-HOLE NOZZLE FOR DIRECT-INJECTION DIESEL ENGINES, PART I: A COMPARATIVE ANALYSIS WITH THE SINGLE-HOLE NOZZLE, ATOMIZATION AND SPRAYS, 19(4), 321-337, 2009

Invited Lecture, Oral Presentation, Poster Presentation

  1. Air Entrainment, Liquid Penetration, Flame Lift-Off and Soot Formation of Spray Flame of Micro-Hole Nozzle under Ultra-High Injection Pressure, Keiya Nishida, Jingyu Zhu, International Symposium on Clean and High Efficiency Combustion in Engines, 2015/08/27, With Invitation, Tianjin University, Tianjin, It is worth understanding the fundamental mechanism of the mixture formation process and combustion characteristics of the D.I. Diesel spray, which is believed to be one of the key factors to determine the subsequent combustion and pollutant formation process in the Diesel engines. This study is aimed at clarifying the fuel/ambient gas mixing process and the combustion characteristics of the high pressure D.I. Diesel spray in the quiescent condition. A wide range of injection pressure from the ordinary values in the current Diesel engines (100MPa, 200MPa) to the ultra-high (300MPa) value was selected. A micro-hole nozzle (0.08mm) and a conventional nozzle (0.12mm) were applied to investigate their effects on the spray property. The effect of wall-impingement on the ambient gas entrainment and combustion behavior was also taken into account. The characteristics of ambient gas motion induced by a single Diesel spray were measured quantitatively by using the Laser Induced Fluorescence-Particle Image Velocimetry (LIF-PIV) technique. The effects of fuel injection pressure, ambient gas density and nozzle hole diameter on the ambient gas mass flow rate into the spray through the whole spray periphery (spray side periphery and tip periphery) were investigated quantitatively according to the gas flow velocity measurements. The characteristics of the combustion process of the Diesel spray were investigated using the direct imaging of natural flame luminosity, OH* chemiluminescence imaging and two color pyrometry techniques. The combustion behaviors were related to the previously discussed spray development and the ambient gas motion features.