1704 狭隘環境下のPC冷却ファンまわりの流れに関する研究(S19-1 流体機械に関連した流動現象とその解析・計測(1)ファン内流れの計測と解析,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

論文の詳細を見る
Flow fields around a PC cooling fan in a narrow space are studied with the experimental measurements using a hot-wire of 45-slanting sensor type and the unsteady Reynolds-averaged Navier-Stokes computations. Effects of the distance between the fan and the cooling target object downstream of it on the fan performances are focused. The numerical results agree with the experimental data. The fan characteristics between the static pressure and the volume flow rate changes greatly as the gap between the fan and the target become below a certain value. It is shown that reversed flow penetrates into the hub region of the fan casing and the effect of tip leakage vortex becomes remarkable as the gap decreases.
社団法人日本機械学会の論文
2008-08-02