TY - GEN
T1 - A novel simple cut-cell method for robust flow simulation on cartesian grids
AU - Harada, Motoshi
AU - Tamaki, Yoshiharu
AU - Takahashi, Yuichi
AU - Imamura, Taro
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Number 15H05559 (Grant-in-Aid for Young Scientists (A)).
Publisher Copyright:
© 2016, American Institute of Aeronautics and Astronautics Inc, AIAA. All Rights Reserved.
PY - 2016
Y1 - 2016
N2 - A novel simple cut-cell method for hierarchical Cartesian grid is proposed. Small or split cells which often appear in the cut-cell method are eliminated by a simple projection strategy. In order to evaluate the capability of this method, two-dimensional flow is solved, and the results are compared with the immersed boundary method (IBM) on Cartesian grids. The computational results of inviscid and viscous laminar flow simulations show that the new cut-cell method is superior to IBM in terms of grid convergence of drag force and separation points. The method is extended to turbulent flow simulations using Spalart-Allmaras wall function. The cut-cell method predicts the skin friction accurately, compared to the IBM.
AB - A novel simple cut-cell method for hierarchical Cartesian grid is proposed. Small or split cells which often appear in the cut-cell method are eliminated by a simple projection strategy. In order to evaluate the capability of this method, two-dimensional flow is solved, and the results are compared with the immersed boundary method (IBM) on Cartesian grids. The computational results of inviscid and viscous laminar flow simulations show that the new cut-cell method is superior to IBM in terms of grid convergence of drag force and separation points. The method is extended to turbulent flow simulations using Spalart-Allmaras wall function. The cut-cell method predicts the skin friction accurately, compared to the IBM.
UR - http://www.scopus.com/inward/record.url?scp=85007595769&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85007595769&partnerID=8YFLogxK
U2 - 10.2514/6.2016-0601
DO - 10.2514/6.2016-0601
M3 - Conference contribution
AN - SCOPUS:85007595769
SN - 9781624103933
T3 - 54th AIAA Aerospace Sciences Meeting
BT - 54th AIAA Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - 54th AIAA Aerospace Sciences Meeting, 2016
Y2 - 4 January 2016 through 8 January 2016
ER -