Journal
CHINESE JOURNAL OF MECHANICAL ENGINEERING
Volume 31, Issue 1, Pages -Publisher
SPRINGEROPEN
DOI: 10.1186/s10033-018-0222-9
Keywords
Immersed boundary method; Adaptive Cartesian grid; Local discontinuous Galerkin method; Reconstruction; Heat transfer equation
Categories
Funding
- National Natural Science Foundation of China [51405375]
- National Key Basic Research and Development Program of China (973 Program) [2011CB706606]
Ask authors/readers for more resources
Currently, many studies on the local discontinuous Galerkin method focus on the Cartesian grid with low computational efficiency and poor adaptability to complex shapes. A new immersed boundary method is presented, and this method employs the adaptive Cartesian grid to improve the adaptability to complex shapes and the immersed boundary to increase computational efficiency. The new immersed boundary method employs different boundary cells (the physical cell and ghost cell) to impose the boundary condition and the reconstruction algorithm of the ghost cell is the key for this method. The classical model elliptic equation is used to test the method. This method is tested and analyzed from the viewpoints of boundary cell type, error distribution and accuracy. The numerical result shows that the presented method has low error and a good rate of the convergence and works well in complex geometries. The method has good prospect for practical application research of the numerical calculation research.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available