直角分岐流れの壁せん断応力に対する枝管形状および流動形態の影響

概要

論文の詳細を見る
Using the branch model in which the side branch bifurcates at a right angle from the trunk, the effect of the shape of the side branch and the flow conditions have been experimentally studied on the variation of wall shear stress in laminar steady flow. The experiment has been carried out on three branch models which have different curvatures at the upstream corner and the same sharp square edge at the downstream corner. The wall shear stress along the proximal wall of the side branch sinusoidally varies downstream, and the gradient of wall shear stress along the proximal wall becomes markedly large. The high wall shear stress which arises around the upstream corner of the side branch is strongly related to the secondary helical flow from the trunk into the side branch. This variation strongly depends on the curvature at the upstream corner and the flow distribution ratio of the side branch to the trunk.
一般社団法人日本機械学会の論文
1994-01-25