曲率壁の全面膜冷却に関する研究 : 第1報,凸曲面壁上の物質伝達

概要

論文の詳細を見る
The effect of wall curvature on the full-coverage film cooling has been experimentally studied by using the concave, flat and convex walls. The preliminary consideration, based on the balance of the centrifugal force associated with the injected fluid element an the pressure gradient normal to the wall, leads to the fact that the secondary fluid tends to depart away from the concave wall and attach to the convex wall. In this report, the local Stanton number ( mass transfer coefficients) on the convexly curves wall have been measured by using the technique of sublimation of naphthalene. The characteristics of mass transfer were discussed by varying blowing ratios M and non-dimensional injection temperature θ. By comparing with the results of the flat FCFC wall, thee local Stanton numbers were considerably reduced by curvature effects. In addition to the above the spanwise averaged Stanton numbers on the recovery wall have been measured.
一般社団法人日本機械学会の論文
1985-09-25