LBM-based Flowpast Simulation Platform Research

Flow past is a special fluid environment in which the flow of fluid bypass theobstacle in the fluid. Compared to traditional methods, LBM is a novel fluidsimulation method which has many advantages including easy computational logic,without continuity and parallel. The research for LBM has been just started so thatprograms developed by researchers are separated and not unified, this hinders theresearch. In this paper, a flow past simulation platform based on LBM is developed.Researchers can develop the program effectively under the framework andinterface,and they can easy to visualize the data.At first, develop a frame that can integrate the function of parametersconfiguration, model solve, data visualization. The frame customrise researcher todevelp program,simplify parameters configuration,data format convertion,and viewresults.Then design a series of rules and interfaces, including input and output dataformat,solver call interface,solver parallel interface,visualization data format.Then,develop a special solver including meshing,boundary solving, programparallel to verify the effectiveness of the framework. The solver realize the functions,providing the foundation of verifying the effectiveness of the framework.Finally,develop the visualization module according VTK for researcher to viewresults of calculation conveniently. Unit topology of the data types and attributes ofthe dataset, design around the flow visualization algorithm to achieve a commoncloud image, vector, contour maps, sub-frame view, the node data view.Practical indicates that this R&D flow around a simulation platform iseffective and easy to use.