Comparison of Immersed Boundary Method and Cut-Cell Method on Cartesian Grids &amp;mdash;Validation of Pressure and Shear Stress Distributions on Near-Wall Region&amp;mdash;

基至, 原田; 太郎, 今村

doi:10.2322/jjsass.64.200

Cited by 1 publication

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Cartesian cut-cell method [9][10][11][12][13] subdivides the object surface into small flat planes inside the cubical computational cells. In other words, these cells are divided by small cut planes into the fluid side and the object side.…”

Section: Introductionmentioning

confidence: 99%

Prediction Capability of Cartesian Cut-Cell Method with a Wall-Stress Model Applied to High Reynolds Number Flows

et al. 2020

View full text Add to dashboard Cite

The Cartesian cut-cell method is one of the most promising methods for computational fluid dynamics due to its sharp interface treatment. However, the Cartesian cut-cell method and other Cartesian mesh solvers have difficulty with concentrating grid to boundary layers. The wall-modelling of shear stress is one of the most effective methods to reduce computational grids in boundary layers. This study investigated the applicability of a wall-stress model to the Cartesian cut-cell method. In the numerical simulations of the flow around a triangular column, Cartesian cut-cell simulation with the wall-stress model adequately predicted the drag coefficient. In the numerical simulations of the flow around a 30P30N high-lift airfoil configuration, the Cartesian cut-cell simulation with the wall-stress model adequately predicts the lift coefficient. The intermittent vortex structure of the outer layer of the turbulent boundary layer was observed on the suction side of the main element and the flap. The Cartesian cut-cell method with a wall-stress model is useful for predicting high Reynolds number flows at R e ∼ 10 6 .

show abstract

Section: Introductionmentioning

confidence: 99%