振動壁を有する二次元チャネル内脈動流の圧力損失

抄録

The pressure distributions of pulsatile flow through a two-dimensional channel bounded by a fixed wall and an oscillating wall are analyzed numerically. In this calculation, a coordinate transformation method is used to analyze the moving boundary problem. The analyzed results are summarized as follows: (1) An increase in the amplitude of the wall oscillation leads to an increase in additional pressure loss due to the oscillation of wall. (2) The wall oscillation does not lead to a decrease in the pressure loss under the present calculation conditions. (3) The phase lag between the flow pulsation and wall oscillation has a strong effect on the additional pressure loss. However, this effect becomes weak with a decrease in the oscillation period of the wall.