ダンプディフューザ形燃焼器の研究 : 非対称流入した衝突噴流の非定常流動機構

概要

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The paper describes flow behavior with an oscillating motion of an impinging jet upon a flame dome head and its reattachment to the casing wall, when a distorted flow is induced at the inlet of the dump diffuser combustor. A laser doppler velocimeter was used for measurement of the time-averaged flow within a sudden expansion region. Measurement of surface pressure fluctuation on the flame dome head and flow visualization by a smoke wire technique with a high-speed video camera were conducted. The jet near the dome head has favorable characteristics about the flow rate distribution into the branched channel. High Reynolds shear stress and turbulence energy are produced near the reattachment region. The jet undergoes an oscillating motion near the dome head with asymmetric vortex formation at the jet boundary.
一般社団法人日本機械学会の論文
1994-12-25