ノズル内にメッシュスクリーンを設置した軸対称衝突噴流熱伝達 : (第 1 報, 比較的小さなメッシュの場合)

概要

論文の詳細を見る
The effect of a mesh screen on impinging heat transfer has been experimentally studied in relation to the flow characteristics of an axisymmetric jet. The mesh screen was installed in the nozzle, 10mm upstream from its exit. Three types of mesh screen with relatively small mesh size were used. The jet Reynolds number based on the nozzle diameter and the nozzle exit velocity was kept constant at Re=17800. Comparing with the case without a mesh screen, the velocity potential core length of the jet increases considerably and the turbulence intensity along the jet centerline increases slowly, as the distance from the nozzle exit increases. Consequently, the local heat transfer coefficients are decreased by the mesh screen in the case of the short nozzle-to-plate spacing.
山口大学の論文
1993-03-00