平板に斜めに当る超音速気流中の粒子による影響
1954 年 20 巻 89 号 p. 1-5
詳細
1954 年 20 巻 89 号 p. 1-5
The particle impingement characteristics on a flat plate with angle of attack in a supersonic flow field are investigated analytically, for a case of flows in which the shock wave is not detached. In this analysis, the drag coefficient cD of a spherical particle does not coincide with Stokes' Low (i. e., cD=24/R), since the Reynolds' Number R of a particle is not small, and CD=0.4 for R=103∼104 ; so we have used the approximation of cD=24/R+0.4 for R=0∼104. All characteristics of particle impingement on a flat plate are found theoritically, and numerical calculations have also been done for water droplets of 0.1mm in diameter at free stream Mach Number M0=2.0.
