Navier-Stokes Solutions for Spin-Up in a Filled Cylinder

Navier-Stokes Solutions for Spin-Up in a Filled Cylinder
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用于填充圆筒中旋转的纳维-斯托克斯解决方案

DOI：
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发表时间：
1979
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通讯作者：
Clarence G. Jones Kitchens
Clarence G. Jones Kitchens
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文献类型：
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作者：
Clarence G. Jones Kitchens

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采用预测-校正多重迭代法求解非定常N-S方程。本文对圆柱形容器内的瞬态旋升流进行了数值求解，雷诺数可达50，000。网格点的分布进行了优化，使用坐标变换，以解决同时的内部和端壁/侧壁边界层流动的细节形成的旋转过程中，五个测试问题的计算与以前的计算和实验测量显示出很好的一致性。瞬态现象发生在早期的侧壁附近，包括反向流动区域和惯性振荡，以及端壁埃克曼层流的某些方面进行了讨论。
A predictor-corr ector multiple-iteration scheme is adapted and used to solve the unsteady Navier-Stokes equations. Numerical solutions for Reynolds numbers up to 50,000 are obtained for the transient spin-up flow in a cylindrical container. The grid point distribution is optimized using coordinate transformations to resolve simultaneously details of both the interior and endwall/sidewall boundary-layer flows formed during spin-up; Calculations for five test problems show very good agreement with previous computations and experimental measurements. Transient phenomena occurring at early time near the sidewall, including reversed flow regions and inertial oscillations, are discussed as well as certain aspects of the endwall Ekman layer flow.