Conservative and Implicit Method of Handling Unstructured Sliding Mesh in Massively Parallel Computing
The sliding mesh technique has been widely used in the simulation of transient flow for rotating components such as marine propellers and turbine machinery.The sliding mesh methods are challenged to achieve numerical coupling between multiple region grids without introducing errors and will restrict the parallel scalability of CFD solvers as the computational scale increases.The difficulty lies in handling the highly transient communication relationships at sliding interfaces.In this paper,we introduce the conservative and implicit method for handling of unstructured sliding mesh in massively parallel computing proposed in the author's previous work,and then the robustness and conservation of the parallel algorithm are verified with examples.The applicability,robustness,and parallel performance of the parallel algorithm for large-scale engineering applications in the field of ship and ocean engineering are verified through the simulation of the transient flow around a propeller.
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