Abstract
A multigrid procedure that makes use of coarse grids generated by the agglomeration of control volumes is used to solve the two- and three-dimensional Euler equations on unstructured grids about complex configurations. The agglomeration is done as a preprocessing step and runs on a workstation in a time linearly proportional to the number of fine grid points. The agglomeration multigrid technique compares very favorably with existing multigrid procedures both in terms of convergence rates and elapsed times. The main advantage of the present approach is the ease with which coarse grids of any desired degree of coarseness may be generated in three dimensions, without being constrained by considerations of geometry. Inviscid flows over a variety of complex configurations are computed using the agglomeration multigrid strategy.
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References
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© 1995 Springer-Verlag
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Venkatakrishnan, V., Mavriplis, D.J. (1995). Agglomeration multigrid for the Euler equations. In: Deshpande, S.M., Desai, S.S., Narasimha, R. (eds) Fourteenth International Conference on Numerical Methods in Fluid Dynamics. Lecture Notes in Physics, vol 453. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-59280-6_118
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DOI: https://doi.org/10.1007/3-540-59280-6_118
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