日本機械学会論文集B編
Online ISSN : 1884-8346
一般論文
軸方向に振動するバランスピストンに作用する非定常流体力の数値解析
木村 俊哉川崎 聡志村 隆内海 政春林 光昭松井 純
著者情報
ジャーナル フリー

2012 年 78 巻 787 号 p. 588-597

詳細
抄録

Dynamic response of the fluid force acting on an axially oscillating balance piston was numerically investigated. The balance piston of a rocket engine turbopump was modeled and forced to oscillate in the axial direction. The flow field around the rotor was simulated using unsteady CFD simulation changing the oscillation frequency. By using the simulation results, the fluid force acting on the balance piston was found to be described by the equation of motion with the additional mass, the additional damping coefficient, and the additional stiffness coefficient. From the analysis of these coefficients, the fluid force on the balance piston in the present model was also found to work to stabilize for the axial oscillation.

著者関連情報
© 2012 一般社団法人 日本機械学会
前の記事 次の記事
feedback
Top