Modeling of Turbulent Flow Around a Square Obstacle using a Generated Mesh by Image Processing Method

Modeling of Turbulent Flow Around a Square Obstacle using a Generated Mesh by Image Processing Method

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The mesh generation process as a time-consuming and computational effort in the numerical methods always has been paid attention to by researchers to provide more accurate and fast methods.In this study, an accurate, fast, and user-friendly method of mesh generation has been developed Distribution Block by combining the image processing method with Computational Fluid Dynamics (CFD).For this purpose, a turbulent flow around a single square as a bluff body is simulated by homemade code using MATLAB software as a test case to illustrate the mentioned method.

The conservative Equations have been discretized using the finite volume method based on the Power-la scheme.Utilizing useful filters on the imported gray-scale digital image provides edge detection of the obstacle in the computational Body mist tonique domain.After the edge detection step, an orthogonal, structured, and staggered mesh is generated.