21822 スクリュ式流体機械の非接触シール部の漏えい流れ(ミニ・マイクロ・ナノスケールの流れおよび熱の現象,OS.5 ミニ・マイクロ・ナノスケールの流れおよび熱の現象)

抄録

The internal leakage of a screw type fluid machine influences the performance. Although the non-contact seal is effective in reducing leakage, the design is based on experiential technique. In order to reduce the amount of leakage, flow filed passed the non-contact seal are investigated by the ALE simulation method. Consequently, It become clear the effect of non-contact seal for a reduction of flow coefficient.