1991 Fiscal Year Annual Research Report

高温化学反応を伴う衝撃波

Research Project

Project/Area Number	03238110
Research Institution	Nagoya University
Principal Investigator	藤原俊隆名古屋大学, 工学部, 教授 (90023225)
Co-Investigator(Kenkyū-buntansha)	吉川典彦豊橋技術科学大学, 工学部, 助教授 (60135423) 林光一名古屋大学, 工学部, 助教授 (60156437) 斉藤昊広島大学, 理学部, 教授 (00033853) 久保田弘敏東京大学, 工学部, 教授 (30114466) 松為宏幸東京大学, 工学部, 教授 (00026098)
Keywords	衝撃波 / 化学反応 / 非平衡 / デトネ-ション / ラジカル / 分子動力学 / レ-ザ-
Research Abstract	「デトネ-ション研究」は、数値解析によってとくに行なわれた。定在斜めデトネ-ションの特性などが明らかになっており、レ-ザ-デトネ-ションに関しても逆制動輻射がレ-ザ-吸収機構で、ブレ-クダウン波の存在やプラズマのカットオフ現象が見出されている。このような結果から、実験に対する基礎固めが出来たと考えられる。「極超音速衝撃波と非平衡流」と関する研究では、これらの流れからの輻射の分光において原子・分子論的に観測されるスペクトルを予測出来、化学反応、原子・分子内部励起過程、空力加熱などの予備的評価が可能となった。実験装置としてバリスティックレンジ、極超音速風洞が既に用意されていて、現在デ-タを得ている。「非平衡反応速度論」の研究では、アクリルニトリルを1000K附近まで衝撃波で加熱し、その後CO2レ-ザ-を照射して反応挙動を調べた。レ-ザ-照射後HCNの生成量が時間と共に増加するのが観測された。この実験では、反応物濃度が高かったので連鎖反応を生じてしまったが、弱いレ-ザ-光照射による反応促進が確認された。一方、単分子熱分解による特定分子構造を伴った励起分子の生成に関しては、既に幾つかの成果が得られている。「大気汚染反応」の研究においては、実験装置が2年前から順調に稼働し、既に多くのラジカル反応について全く新しい重要な研究成果を挙げている。特に、高温における窒素原子の反応機構の検討、酸素分子の高振動励起状態(v=7)の検出と緩和速度の測定、ならびにCO2の193nm光分解過程解明の研究は、これまでに類似の研究成果を含めて報告されていない。本研究において使用しているレ-ザ-閃光分解型衝撃波管により、初めて可能となった研究である。

Research Products

(32 results)

All Other

All Publications (32 results)

[Publications] A.Sasoh: "Spetroscopic Study of High-Mach-Number Air Shock Layers Generated by a Ballistic Range" Proceedings of 18th symposium (International) on Shock Wave. (1991)
[Publications] A.Sasoh: "Radiative Heat Transfer from Non-equilibrium High-Enthalpy shock Layer" Proceedings of 18th Symposium (International) on Shock Wave. (1991)
[Publications] T.Murayama: "Chemical and Thermal Processes in a Hypersonic Shock Layer" Proceedings of 18th Syposium (International) on shock Wave. (1991)
[Publications] M.Tsujioka: "A Study of Laser-Absorption Wave Formation" Proceedings of 18th Syposium (international) on Shock wave. (1991)
[Publications] A.Matsuo: "Numerical Prediction of Mechanism of Oscillatory Instabilities of Shock-Induced Combustion" Proceedings of 13th-ICDERS (International colloquium on Dynamics of Explosions and Reactive Systems). (1991)
[Publications] X.Chang: "Numerical Study on Single Fuel Droplet Evaporation and Combustion in supercritical Condituins" Proceedings of 13th-ICDERS. (1991)
[Publications] X.Wang: "Direct Numerical Simulation of a Suddenly-Started Mixing Shear Layer" Transactions of The Japan Society for Aeronautical and space Sciences. 34. 121-130 (1991)
[Publications] V.M.Shevtsova: "Thermoconvective Motion in a Two-Layered System" Memories of the Faculty of Engineering,Nagoya University. 43. 113-120 (1991)
[Publications] M.Tsujioka: "Propagation Mechanism of Laser-Supported Datonation Wave" AIAA Paper 91-0385. 1-10 (1991)
[Publications] A.Matsuo: "Numerical Simulation of Shock-Induced Combustion aroud an Axisymmetric Blunt Body" AIAA Paper 91-1414. 1-10 (1991)
[Publications] K.Fukuda: "Studies on the Reactions:C2H+C2H2=C4H2+H and C2H+H2=C2H2+H" Proceedings of the Syposium on Combustion Chemistry,American chemical Soc.,New York,Division of Fuel Chemistry. 36. 1392-1399 (1991)
[Publications] K.Fukuda: "Reactions of Acetylene with C2H Radical at High Temperatures" Proceedings of 18th Syposium (International) on Shock Wave. (1991)
[Publications] M.Yoshimura: "Examination of the Chain-Branching Steps in Oxidation of CH4 and H2S via Excimer Laser Photolysis in shock Wave" Proceedings of 18th Syposium (International) on Shock Wave. (1991)
[Publications] M.Koshi: "Kinetics of the SiH3+O2 Reaction Studied by Time Resolved Mass Spectrometry" Journal of Phys.Chem.(1991)
[Publications] A.Miyoshi: "Rate Constant and Mechanism of the SiH3+SiH3 Reaction" Chem.Phys.Lett.(in press). (1991)
[Publications] S.Wakayama: "Equation of State for the Lennard-Jones Mixtures at High Temperatures" Bullet.Chem.Soc.Jpn.(in press). (1991)
[Publications] K.Komiya: "Theoretical Studies on the potential Energy Surface of SO2;Electronic States for Photodissociation from C]B2 State" Bullet.Chem.Soc.Jpn.64. 2792-2801 (1991)
[Publications] Q.Lu: "Laser Induced Fluorescence Excitation Spectrum of CC12 Cooled in a Supersonic Jet" Chem.Phys.Lett.178. 517-522 (1991)
[Publications] M.Koshi: "Photodissociation of O2 and CO2 from Vibrationally Excited States at High Temperatures" Chem.Phys.Lett.176. 519-525 (1991)
[Publications] K.Kuzuu: "Effects of Gas-Surface Interaction Models on Aerodynamic Characteristics" Trans.Japan Soc.for Aero.and Space Sci.34. 109-120 (1991)
[Publications] H.Kubota: "spaceplane Aerodynamic Heating and Thermal Protection Design Method" Proceedings of 17th ISTS (Int.Symp.on Space Thec.and Sciences)(in press). (1990)
[Publications] K.Suzuki: "Computational Studies on Topological Properties of Vortex Core Lines in Sepatated Flow Field around High-Angle-of-Attack Cone Cylinder" Proceedings of IUTAM Symp.on Separated Flow and Jets(in press). (1990)
[Publications] Y.Wada: "Hypersonic Nonequilibrium Flow computation around Space Vehicle" Proc.17th ISTS (in press). (1990)
[Publications] K.Saito: "Unimlecular Radiation of Acetaldoxime at High Temperatures:Experiments and Calculations" J.Phys.Chem.(to be published). (1991)
[Publications] K.Saiot: "Unimolecular Decomposition of Pyruvic Acid at High Temperatures:Experiments and Calculations" J.Phys.Chem.(to be published). (1991)
[Publications] K.Saito: "Vibrational States of Carbon Monoxide Produced via Successive Unimolecular Decomposition of Relatively Large Molecules" Proceedings of 18th ISSW (Symposium (International) on Shock Wave)(in press). (1991)
[Publications] K.Shimofuji: "Unimolecular Thermal Decomposition of Ethyl Vinyl Ether and the consecutive Thermal Reaction of the Intermediary Product Acetaldehyde;Shock Wave Experiment and ab Initio Calculation" J.Phys.chem.95. 155-165 (1991)
[Publications] K.Saito: "The Thermal Unimolecular Decomposition of 3,4-Dihydro-2H-Pyran behind Reflected Shock Waves" Chem.Phys.Letters.165. 383-385 (1990)
[Publications] K.Saito: "On the Thermal Unimolecular Decomposition of Propynal" Chem.Phys.Letters. 167. 347-370 (1990)
[Publications] K.Saito: "Thermal Decomposition of Ethyl Acetate.Branching Ratio of the competing Paths in the Pyrolysis of the Produced Acetic Acid" Chem.Phys.Letters. 170. 385-388 (1990)
[Publications] D.B.Borchardt: "Relaxation Kinetics in Gaseous Lewis Acid/Base Systems---The Prototype:(CH3)2O+BF3=(CH3)2O:BF3" J.Mole.Struct.223. 375-382 (1990)
[Publications] M.Koshi: "Reactions of N(4S) Atoms with NO and H2" J.Chem Phys.93. 8703-8708 (1990)

1991 Fiscal Year Annual Research Report

高温化学反応を伴う衝撃波

Principal Investigator

藤原 俊隆 名古屋大学, 工学部, 教授 (90023225)

Research Products

[Publications] A.Sasoh: "Spetroscopic Study of High-Mach-Number Air Shock Layers Generated by a Ballistic Range" Proceedings of 18th symposium (International) on Shock Wave. (1991)

[Publications] A.Sasoh: "Radiative Heat Transfer from Non-equilibrium High-Enthalpy shock Layer" Proceedings of 18th Symposium (International) on Shock Wave. (1991)

[Publications] T.Murayama: "Chemical and Thermal Processes in a Hypersonic Shock Layer" Proceedings of 18th Syposium (International) on shock Wave. (1991)

[Publications] M.Tsujioka: "A Study of Laser-Absorption Wave Formation" Proceedings of 18th Syposium (international) on Shock wave. (1991)

[Publications] A.Matsuo: "Numerical Prediction of Mechanism of Oscillatory Instabilities of Shock-Induced Combustion" Proceedings of 13th-ICDERS (International colloquium on Dynamics of Explosions and Reactive Systems). (1991)

[Publications] X.Chang: "Numerical Study on Single Fuel Droplet Evaporation and Combustion in supercritical Condituins" Proceedings of 13th-ICDERS. (1991)

[Publications] X.Wang: "Direct Numerical Simulation of a Suddenly-Started Mixing Shear Layer" Transactions of The Japan Society for Aeronautical and space Sciences. 34. 121-130 (1991)

[Publications] V.M.Shevtsova: "Thermoconvective Motion in a Two-Layered System" Memories of the Faculty of Engineering,Nagoya University. 43. 113-120 (1991)

[Publications] M.Tsujioka: "Propagation Mechanism of Laser-Supported Datonation Wave" AIAA Paper 91-0385. 1-10 (1991)

[Publications] A.Matsuo: "Numerical Simulation of Shock-Induced Combustion aroud an Axisymmetric Blunt Body" AIAA Paper 91-1414. 1-10 (1991)

[Publications] K.Fukuda: "Studies on the Reactions:C2H+C2H2=C4H2+H and C2H+H2=C2H2+H" Proceedings of the Syposium on Combustion Chemistry,American chemical Soc.,New York,Division of Fuel Chemistry. 36. 1392-1399 (1991)

[Publications] K.Fukuda: "Reactions of Acetylene with C2H Radical at High Temperatures" Proceedings of 18th Syposium (International) on Shock Wave. (1991)

[Publications] M.Yoshimura: "Examination of the Chain-Branching Steps in Oxidation of CH4 and H2S via Excimer Laser Photolysis in shock Wave" Proceedings of 18th Syposium (International) on Shock Wave. (1991)

[Publications] M.Koshi: "Kinetics of the SiH3+O2 Reaction Studied by Time Resolved Mass Spectrometry" Journal of Phys.Chem.(1991)

[Publications] A.Miyoshi: "Rate Constant and Mechanism of the SiH3+SiH3 Reaction" Chem.Phys.Lett.(in press). (1991)

[Publications] S.Wakayama: "Equation of State for the Lennard-Jones Mixtures at High Temperatures" Bullet.Chem.Soc.Jpn.(in press). (1991)

[Publications] K.Komiya: "Theoretical Studies on the potential Energy Surface of SO2;Electronic States for Photodissociation from C]B2 State" Bullet.Chem.Soc.Jpn.64. 2792-2801 (1991)

[Publications] Q.Lu: "Laser Induced Fluorescence Excitation Spectrum of CC12 Cooled in a Supersonic Jet" Chem.Phys.Lett.178. 517-522 (1991)

[Publications] M.Koshi: "Photodissociation of O2 and CO2 from Vibrationally Excited States at High Temperatures" Chem.Phys.Lett.176. 519-525 (1991)

[Publications] K.Kuzuu: "Effects of Gas-Surface Interaction Models on Aerodynamic Characteristics" Trans.Japan Soc.for Aero.and Space Sci.34. 109-120 (1991)

[Publications] H.Kubota: "spaceplane Aerodynamic Heating and Thermal Protection Design Method" Proceedings of 17th ISTS (Int.Symp.on Space Thec.and Sciences)(in press). (1990)

[Publications] K.Suzuki: "Computational Studies on Topological Properties of Vortex Core Lines in Sepatated Flow Field around High-Angle-of-Attack Cone Cylinder" Proceedings of IUTAM Symp.on Separated Flow and Jets(in press). (1990)

[Publications] Y.Wada: "Hypersonic Nonequilibrium Flow computation around Space Vehicle" Proc.17th ISTS (in press). (1990)

[Publications] K.Saito: "Unimlecular Radiation of Acetaldoxime at High Temperatures:Experiments and Calculations" J.Phys.Chem.(to be published). (1991)

[Publications] K.Saiot: "Unimolecular Decomposition of Pyruvic Acid at High Temperatures:Experiments and Calculations" J.Phys.Chem.(to be published). (1991)

[Publications] K.Saito: "Vibrational States of Carbon Monoxide Produced via Successive Unimolecular Decomposition of Relatively Large Molecules" Proceedings of 18th ISSW (Symposium (International) on Shock Wave)(in press). (1991)

[Publications] K.Shimofuji: "Unimolecular Thermal Decomposition of Ethyl Vinyl Ether and the consecutive Thermal Reaction of the Intermediary Product Acetaldehyde;Shock Wave Experiment and ab Initio Calculation" J.Phys.chem.95. 155-165 (1991)

[Publications] K.Saito: "The Thermal Unimolecular Decomposition of 3,4-Dihydro-2H-Pyran behind Reflected Shock Waves" Chem.Phys.Letters.165. 383-385 (1990)

[Publications] K.Saito: "On the Thermal Unimolecular Decomposition of Propynal" Chem.Phys.Letters. 167. 347-370 (1990)

[Publications] K.Saito: "Thermal Decomposition of Ethyl Acetate.Branching Ratio of the competing Paths in the Pyrolysis of the Produced Acetic Acid" Chem.Phys.Letters. 170. 385-388 (1990)

[Publications] D.B.Borchardt: "Relaxation Kinetics in Gaseous Lewis Acid/Base Systems---The Prototype:(CH3)2O+BF3=(CH3)2O:BF3" J.Mole.Struct.223. 375-382 (1990)

[Publications] M.Koshi: "Reactions of N(4S) Atoms with NO and H2" J.Chem Phys.93. 8703-8708 (1990)

藤原俊隆名古屋大学, 工学部, 教授 (90023225)