平行平板流路における希薄気体流への壁面の影響

概要

論文の詳細を見る
Rarefied gas flows in narrow spaces are affected by the surface roughness of the walls, but the interaction between gas molecules and solid surfaces is not yet sufficiently understood. The effects of surface roughness on the conductance of passages composed of two flat plates are studied experimentally and theoretically. Experiments are performed on both passages with generally treated surfaces and ones with two-dimensional triangular roughness of constant height cut by machining. The latter roughness is chosen as the model of roughness for calculation by the Monte Carlo method to simplify the problem. The experimental results show that the conductance decreases with increase in the angle of the local roughness slope. The calculated results agree well with the experimental results in the case of two-dimensional roughness.
社団法人日本機械学会の論文
1996-04-25