@inproceedings{oai:jaxa.repo.nii.ac.jp:00038079, author = {小幡, 茂男 and Obata, Shigeo}, book = {航空宇宙技術研究所特別資料: 航空宇宙数値シミュレーション技術シンポジウム2001論文集, Special Publication of National Aerospace Laboratory: Proceedings of Aerospace Numerical Simulation Symposium 2001}, month = {Jan}, note = {The baroclinic torque, an aerodynamical force induced by special misalignment between density gradient of mixing layer and pressure gradient of shock wave, is able to achieve fine mixing enhancement characteristics in fuel gas injection for supersonic combustion of SCRAM jet engine. The effect of reciprocal passage of a normal shock wave, forward and backward propagation through a 2-D circular shape helium gas surrounded by air, on mixing process is numerically analyzed. A governing equation system including Navier-Stokes and species mass conservation equation is solved by TVD formulated finite differential method. After the primary interaction of forward propagating normal shock wave, M(sub s) = 1.5, the helium gas is divided to two elliptic parts. Each part shows a symmetrical vortical motion. Similarly the secondary reflection wave cuts off each part to tiny twins with contra-vorticities. Though a reciprocal motion of shock wave produces contra-direction of baroclinic torque on helium gas, the combination never contribute to suppress mixing but accelerate homogeneity of concentration between helium and air., 資料番号: AA0032819043, レポート番号: NAL SP-53}, pages = {251--256}, publisher = {航空宇宙技術研究所, National Aerospace Laboratory (NAL)}, title = {固体壁近傍における密度勾配と衝撃波との干渉}, volume = {53}, year = {2002} }