522 二次元角柱周りの流れの数値計算 : 物体から発生する音源の解析(流体工学II)

概要

論文の詳細を見る
Aerodynamic noise is ejected from various objects, such as vehicles, trans and aircrafts. The two-dimensional rectangular is selected as the noise source, and the dependence of the aerodynamic sound from the surface of the rectangular on the angle of attack is investigated. Flow field is obtained by numerical analysisat various angles of attack. Assuming the fluid is incompressibl and viscous, pressur and velocity fluctuations were computed by solving the equations of the continuity and the Navier-Stokes equations with the finite difference method. By calculating the pressure level at the far measurement point from the rectangular, using the surface pressure fluctuations on the rectangular surface, the relation between the aerodynamic sound and the flow field is investigated.
一般社団法人日本機械学会の論文
2001-03-09