Numerical Simulation of Three-Dimensional Viscous Flow in a Linear Compressor Cascade With Tip Clearance
Numerical Simulation of Three-Dimensional Viscous Flow in a Linear Compressor Cascade With Tip Clearance
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DOI：
10.1115/1.2836694
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发表时间：
1996-07
影响因子：
1.7
通讯作者：
S. Kang;C. Hirsch
中科院分区：
文献类型：
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作者：
S. Kang;C. Hirsch
应用Navier-Stokes求解器对具有叶顶间隙的低速线性压气机叶栅内的三维粘性流动进行了数值模拟。闭合采用Baldwin-Lomax的代数湍流模型。对于一个流量系数，模拟了叶片与壁面之间的相对运动。对于静止壁面情况，给出了与实验数据的比较，包括流动结构、静压和总压、速度分布、二次流和涡量。结果表明，该程序对实验观测到的流动结构有较好的预测效果，并能很好地显示出叶尖泄漏流动和前缘马蹄涡的细节。
A Navier-Stokes solver is applied to investigate the three-dimensional viscous flow in a low-speed linear compressor cascade with tip clearance at design and off-design conditions with two different meshes. The algebraic turbulence model of Baldwin-Lomax is used for closure. Relative motion between the blades and wall is simulated for one flow coefficient. Comparisons with experimental data, including flow structure, static and total pressures, velocity profiles, secondary flows and vorticity, are presented for the stationary wall case. It is shown that the code predicts well the flow structure observed in experiments and shows the details of the tip leakage flow and the leading edge horseshoe vortex.