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Abstract
Simulation of reactive flows often involves resolution of regions of steep gradients as well as varying time scales. A finite-volume formulation on a hybrid generalized moving adaptive mesh grid along with an explicit time integration scheme is presented. The algorithm is tested by simulating the filtration combustion process in three dimensions. Important considerations such as the geometric conservation law for moving grids and its compliance for the finite-volume method are discussed. Applicability of this algorithm to vector and coarse-grain parallel architectures is also discussed. Simulation results have for the first time predicted the presence of three-dimensional instabilities in filtration combustion. Good agreement has been found with experimental observations.