A comparative study of immersed-boundary interpolation methods for a flow around a stationary cylinder at low Reynolds number

摘要: The accuracy and computational efficiency of various interpolation methods for the implementation non grid-confirming boundaries is assessed. aim research to select an method that both efficient sufficiently accurate be used in simulation vortex induced vibration flow around a deformable cylinder. Results are presented immersed boundary which velocities near nonconfirming were interpolated normal direction walls. field solved on Cartesian grid using finite volume with staggered variable arrangement. Strouhal number Drag coefficient cases reported. results show good agreement literature. Also, drag five different compared it was shown stationary cylinder at low Reynolds number, could affect by maximum 2% 3%. In addition, bi-liner took about more time per shedding cycle companion other methods.