Vehicle Aerodynamics Simulation for the Next Generation on the K Computer: Part 2 Use of Dirty CAD Data with Modified Cartesian Grid Approach

2014 ◽  
Vol 7 (2) ◽  
pp. 528-537 ◽  
Author(s):  
Keiji Onishi ◽  
Makoto Tsubokura ◽  
Shigeru Obayashi ◽  
Kazuhiro Nakahashi
Keyword(s):  
Cartesian Grid ◽  
Next Generation ◽  
Grid Approach ◽  
Vehicle Aerodynamics

3105 Cartesian Grid Approach and Its Applications

2005 ◽  
Vol 2005.18 (0) ◽  
pp. 203-204
Author(s):  
Hidetoshi NISHIDA ◽  
Itaru TANNO
Keyword(s):  
Cartesian Grid ◽  
Grid Approach

A weakly-compressible Cartesian grid approach for hydrodynamic flows

2017 ◽  
Vol 220 ◽  
pp. 31-43 ◽  
Author(s):  
P. Bigay ◽  
G. Oger ◽  
P.-M. Guilcher ◽  
D. Le Touzé
Keyword(s):  
Cartesian Grid ◽  
Weakly Compressible ◽  
Grid Approach

Application of Ghost Body-Cell Method on Adaptively Refined Cartesian Grid in Computational Fluid Dynamics

2013 ◽  
Vol 300-301 ◽  
pp. 775-780
Author(s):  
Yu Qi Han ◽  
Shu Xin Cui ◽  
Yong Wang ◽  
Ge Gao
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Flow Field ◽  
Cartesian Grid ◽  
Time Step ◽  
Body Cell ◽  
Cell Method ◽  
Cut Cell ◽  
Grid Approach ◽  
Volume Method

Least-squares fitting was employed to interpolate the reflect point, ghost body-cell method (GBCM) was applied to quadtree-based adaptively refined Cartesian grid approach, and finite volume method was employed to solve Euler equations. Shape of cut cell kept in accordance with that in the flow field which efficiently relieved the time step restriction of small cut cells. Flows around a circular cylinder and the double NACA0012 airfoils are simulated and compared with published structured grid results, which show flow field around complex geometries is adequately resolved resort to GBCM approach on adaptively refined Cartesian grid in computational fluid dynamics (CFD).

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