A compact momentum interpolation procedure for unsteady flows and relaxation

Cubero A; Fueyo N

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A compact momentum interpolation procedure for unsteady flows and relaxation

机译：紧凑的动量插值程序，用于非恒定流动和松弛

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An improved version of the momentum interpolation approach for calculating velocities at the cell faces in nonstaggered grids is proposed. The procedure is developed for unsteady flows and takes into account the inclusion of relaxation. Regarding the integration in time, the firstorder Euler and the secondorder Euler and AdamsMoulton schemes are analyzed. The proposed procedure results in a compact, easytoimplement expression which is shown to provide the desirable performance: Spurious oscillations of pressure are avoided; converged, steady solutions are independent from relaxation coefficient and timestep size; and the accuracy of the discretization is not negatively affected.

机译：提出了一种改进的动量插值方法，用于计算非交错网格中单元面的速度。该程序是针对不稳定流量而开发的，并考虑到了松弛问题。关于时间的积分，分析了一阶欧拉，二阶欧拉和亚当斯莫尔顿方案。拟议的程序产生了一个紧凑，易于实现的表达式，该表达式可提供所需的性能：避免了压力的虚假波动;收敛的稳定解与松弛系数和时间步长无关;离散化的准确性不会受到负面影响。

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《Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology》 |2007年第6期|共23页
作者
Cubero A; Fueyo N;
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正文语种 eng
中图分类热力工程、热机;
关键词
NAVIER-STOKES EQUATIONS; UNDERRELAXATION; GRIDS;

机译：纳维斯托克斯方程;松驰度;网格;

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1. A compact momentum interpolation procedure for unsteady flows and relaxation [J] . Cubero A, Fueyo N Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology . 2007,第6期

机译：紧凑的动量插值程序，用于非恒定流动和松弛
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4. The momentum flux coefficient for modelling steady and unsteady head losses in turbulent pipe flow [C] . A. Ch H. Kruisbrink, A. S. Tijsseling International Conference on Pressure Surges . 2008

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5. Issues in low-dimensional modeling of unsteady flows: Convergence, asymptotic stability and reconstruction procedures. [D] . Sirisup, Sirod. 2005

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6. On a bivariate spectral relaxation method for unsteady magneto-hydrodynamic flow in porous media [O] . Vusi M. Magagula, Sandile S. Motsa, Precious Sibanda, -1

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7. A primitive variable, strongly implicit calculation procedure for two and three-dimensional unsteady viscous flows: applications to compressible and incompressible flows including flows with free surfaces [O] . Chen, Kuo-Huey 1990

机译：用于二维和三维非稳态粘性流的原始变量，强隐式计算过程：适用于可压缩和不可压缩流，包括具有自由曲面的流
8. Source Distribution Method for Unsteady One-Dimensional Flows With Small Mass, Momentum, and Heat Addition and Small Area Variation [R] . Mirels, Harold 1959

机译：具有小质量，动量和热量增加以及小面积变化的非定常一维流动的源分布方法

A compact momentum interpolation procedure for unsteady flows and relaxation

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