Citation:
Kang ZhongLiang, Fang Yuanyuan. A Dynamic Overset Mixed Grids Approach for Multiple Relative Motion. Journal of Information Technologyin Civil Engineering and Architecture,
2015, 7(1): 69-74.
2015, 7(1): 69-74.
A Dynamic Overset Mixed Grids Approach for Multiple Relative Motion
| 1. | CABR TECHNOLOGY CO., LTD., China Academy of Building Research, Beijing 100013, China |
| 2. | Academy of Beijing Gas Group Co., Ltd., Beijing 100011, China |
A dynamic overset mixed grids algorithm is proposed. An interpolation method based on the linear reconstruction is developed for the overset mixedgrids approach. The optimized intergrid-boundary definition method is shown to be excellent and reliable. The intergrid boundaries are very smooth and have similar cell sizes.The flows around multiple bodies in relative motion can be simulated by solving the unsteady Navier-Stokes equations and the 6DOF equations. The numerical results of store separation prove that the present dynamic overset grids method is fast, accurate and reliable.
| [1] |
Kazuhiro Nakahash, Fumiya Togash, Dmitri Sharov. An intergrid-boundary definition method for overset unstructured grid approach. AIAA-1999-3304, 1999. |
| [2] |
Benek J A, Steger J L, Dougherty F. A flexible grid embedding technique with applications to the Euler equations. AIAA-1983-1944, 1983. |
| [3] |
Hong Luo, Dmitri Sharov, Joseph D Baum. Anoverlappin-gunstructured gridmethod for viscous flows. AIAA-2001-2603, 2001. |
| [4] |
Fumiya Togashi, Yasushi Ito, Kazuhiro Nakahashi. Extensions of overset unstructured grids to multiple bodies in contact. Journalof Aircraft 2006; 43(1): 52-57. |
| [5] |
Shun Takahashi, IchieMonjugawa, and Kazuhiro Nakahashi. Unsteady flow computation around moving multiple bodies using overset unstructured grids. AIAA-2006-2839, 2006. |
| [6] |
J Blazek.Computational fluid dynamics principles and application. Oxford: Elsevier Sci Ltd, 2001. |
| [7] |
Roe P L. Approximate Riemann solvers, parameter vectors, and difference schemes.Journal of Computational Physics 1981; 43: 357-372.doi: 10.1016/0021-9991(81)90128-5 |
| [8] |
Barth T J, Jespersen D C. The design and application of upwind schemes on unstructured meshes. AIAA-1989-0366, 1989. |
| [9] |
Venkatakrishnan V. On the accuracy of limiters and convergence to steady state solutions. AIAA-1993-0880, 1993. |
| [10] |
P R Spalart, S R Allmaras. A one-equation turbulence model for aerodynamic flows. AlAA-1992-0439, 1992. |
| [11] |
Jameson A. . Time-dependent calculations using multigrid with application to unsteady flows past airfoils and wings[R]. AIAA-1991-1596. |
| [12] |
HallL. H., ParthasarathV. Y. . Validation of an automated chimera/6-dof methodology for multiple moving body problems[R]. AIAA-1998-0767. |
Metrics
- PDF Downloads(10)
- Abstract views(1075)
- HTML views(752)
