A consistent method for finite volume discretization of body forces on collocated grids applied to flow through an actuator disk

作者：Troldborg N^*; Sorensen N N; Rethore P E; van der Laan M P

来源：Computers & Fluids, 2015, 119: 197-203.

DOI：10.1016/j.compfluid.2015.06.028

• CFD
• Actuator disk
• Collocated grid
• Finite volume
• Discrete body force

This paper describes a consistent algorithm for eliminating the numerical wiggles appearing when solving the finite volume discretized Navier-Stokes equations with discrete body forces in a collocated grid arrangement. The proposed method is a modification of the Rhie-Chow algorithm where the force in a cell is spread on neighboring cells by applying equivalent pressure jumps at the cell faces. The method shows excellent results when applied for simulating the flow through an actuator disk, which is relevant for wind turbine wake simulations.

• 出版日期2015-9-22