2球間クエット超臨界流のかく乱の構造と渦運動 : すきま比0.2の特性

概要

論文の詳細を見る
Super-critical flow in spherical Couette system with only inner sphere rotating is investigated for clearance ratio 0.2 in terms of structures of disturbances and their wave speeds. Interior waves, ring vortices, Stuart vortices, shear waves, twists and wavy outflow boundary were observed. Ring vortex has four waves on it, and moves towards pole for one wave length (λ_φ=10°) in the meridian direction while it rotates for one wave length (λ_φ=90°) in the azimuthal direction. Rotational direction of Stuart vortex observed in the present experiment is opposite to the rotation of inner sphere. Iterior waves and twists have same character, and their wave speeds are same as that of oscillating inflow boundary of secondary flow. Both wave speeds of shear waves and oscillating outflow boundary are also same. The wave speed of traveling wave on outflow boundary is about two times of that on inflow boundary.
一般社団法人日本機械学会の論文
1991-09-25