1309 軸流羽根車における失速流量域の数値シミュレーション(GS-5 流体機械)

概要

論文の詳細を見る
A three-dimensional numerical simulation of a flow in a rotating axial rotor was conducted for flow rate of smller than stall onset. It is intended in this simulation to investigate the flow inside stall cell. It is found that the rotor used for this simulation does not form stall cell which is normally characterized by a reverse flow area, but forms a group of large scale vortex tubes which is detected as low pressure areas. Since the vortices are distributed rather uniformly to peripheral direction near the casing wall, the stall looks like axi-symmetric stall, but the head stayes nearly constant at low value, contrary to axi-symmetric stall case. The vortices rotate opposite to the direction of rotor's rotation, relative to the rotor.
一般社団法人日本機械学会の論文
2001-03-16