1997 Fiscal Year Final Research Report Summary
RESEARCH ON CHEMICAL REACTION ENHANCENMENT OF SUPERSONIC MIXING GAS FLOWS
| Project/Area Number |
07405046
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Aerospace engineering
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| Research Institution | KYUSHU UNIVERSITY |
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Principal Investigator |
NAMBA Masanobu KYUSHU UNIVERSITY,DEPARTMENT OF AERONAUTICS AND ASTRONAUTICS,PROFESSOR, 工学部, 教授 (50037735)
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| Co-Investigator(Kenkyū-buntansha) |
INOKUCHI Yuzo KYUSHU UNIVERSITY,DEPARTMENT OF AERONAUTICS AND ASTRONAUTICS,RESEARCH ASSOCIATE, 工学部, 助手 (30274509)
TOSHMITSU Kazuhiko KYUSHU UNIVERSITY,DEPARTMENT OF AERONAUTICS AND ASTRONAUTICS,RESEARCH ASSOCIATE, 工学部, 助手 (10180150)
YAMASAKI Nobuhiko KYUSHU UNIVERSITY,DEPARTMENT OF AERONAUTICS AND ASTRONAUTICS,ASSICIATE PROFESSOR, 工学部, 助教授 (70166635)
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| Project Period (FY) |
1995 – 1997
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| Keywords | Scramjet Engine / Supersonic Combustion / Supersonic Mixing / Turbulent Diffusion Flame / Computaional Fluid Dynamics / Navier-Stokes Equations / Optical Measurement / Vitialte Air |
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| Research Abstract |
* Numerical codes were developed to solve the Reynolds-averaged Navier-Stoces equations for compressible reactive flows using the oxygen-hydrogen two-step or eight-step reaction model, and the k-epsilon or k-omega turbulence model. The codes were applied to the three-dimensional mixing and combustion flowefields for various parameters related the the scramjet engine combustors.
* Supersonic combustion wind tunnel was constructed, in which the high temperature vitiated air is generated by the lean-bum combustion upstream of the test section. The temperature, pressure and the Mach number are compared with their disigned values. Ignition at the test section was confirmed by observation.
* Experiments were conducted to establish the three-dimensional quantitative measurement technique by the laser induced fluorescence using the excimer laser and CCD camera systems. OH concentration in the correlation burner setup was successfully visualized. The numerical codes to calculate the equilibrium chemeical concetration were also developed. Further, the numerical codes were developed to calulate the axi-symmetric combustion flowfield, in which the mass diffusion terms are modeled properly.
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Research Products
(4 results)
