| Project/Area Number |
63045011
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | University-to-University Cooperative Research |
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| Research Institution | Yokohama National University |
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Principal Investigator |
TERAO Kunio Yokohama National University, Faculty of Engineering, 工学部, 教授 (30017850)
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| Co-Investigator(Kenkyū-buntansha) |
SEVELEDER Veronique Ecole Central Paris-Centre National de Research Scientifiques, Lab. d'Energetiqu, CNRS, 助手
HARTMANN Jean-Michel Ecole Central Paris-Centre National de Research Scientifiques, Lab. d'Energetiqu, CNRS, 助教授
SOUFIANI Anouar Ecole Central Paris-Centre National de Research Scientifiques, Lab. d'Energetiqu, CNRS, 助教授
ESPOSITO Emile Ecole Central Paris-Centre National de Research Scientifiques, Lab. d'Energetiqu, CNRS, 教授
ARIMITSU Naoko Yokohama National University, Faculty of Engineering, 工学部, 助手 (00114968)
KAGUEI Seiichiro Yokohama National University, Faculty of Engineering, 工学部, 助教授 (20017966)
SATO Masachiyo Yokohama National University, Faculty of Engineering, 工学部, 名誉教授 (60017861)
TSUBOI Takao Yokohama National University, Faculty of Engineering, 工学部, 教授 (70017937)
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| Project Period (FY) |
1988 – 1990
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| Project Status |
Completed (Fiscal Year 1990)
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| Budget Amount *help |
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 1990: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1989: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1988: ¥2,400,000 (Direct Cost: ¥2,400,000)
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| Keywords | Laser light scattering method / Spray Combustion / Abel transform / Multicomponent Spectrum / Fuzzy theory / Infrared absorption spectrum / Shock tube / Convection |
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| Research Abstract |
The research project "Research for Combustion Mechanism by Laser Beam" was realized in the form of conferences, exchange of research documents, discussions, visits to related laboratories and joint experiment. The obtained results in this project are summarized as follows.
1. As the result of the investigation of the propagating flame in the propane-oxygen mixture by laser scattering method, high energy particles corresponding to the temperature range 10,000K-150,000K were detected with high density not only inside of the flame but also in front of the flame. This result was transmitted to ECP and it was quite useful for the later research of the interaction between the combustion wave and the shock wave.
2. The Abelinversion method was applied to the analysis of the time variation of the thermal radiation from diesel spray combustion flame under the guidance of ECP. The behavior of the combustion and pressure waves propagating in the propane-oxygen mixture was observed by the infrared H
… More
e-Ne laser and the variation of combustion velocity under the influence of pressure wave were also observed.
3. A method for depressing the noise effect of the experimental data was developed in YNU by applying the fuzzy theory for the deconvolution of multicomponent spectrum.
4. A new model for the infrared absorption spectrum was proposed which plays an intermediate role between the line-by-line model and the statistical model. It was applied to the analysis of the absorption spectra of CO_2 and H_2O.
5. In YNU, the laser absorption by CH_4 diluted by N_2 and Ar was measured by shock tube method. The 3,392 mum beam from He-Ne laser was adopted to the range of temperature up to 1,200K. The results agreed with the theoretical prediction made in the Laboratory E. M2. C. -ECP.
6. The stability criteria for the convectional flow was calculated and analyzed in ECP in order to obtain the thermal transfer effect.
As stated above, we could obtain new and valuable results in this research project for the most part of our program. French researchers have contributed in the domain of Abel transform technique and of the theoretical treatment of the laser absorption, while japanese researchers have contributed in the domain of shock tube experiment and of the analysis of absorption spectrum as well as the fuzzy theory. Less
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