Modeling of Turbulent Flow Around a Square Obstacle using a Generated Mesh by Image Processing Method
الموضوعات :
Bahador Abolpour
1
(Department of Chemical Engineering,
Sirjan University of Technology, Sirjan, Iran)
Rahim Shamsoddini
2
(Department of Mechanical Engineering,
Sirjan University of Technology, Sirjan, Iran)
تاريخ الإرسال : 03 السبت , ذو الحجة, 1443
تاريخ التأكيد : 08 الثلاثاء , ربيع الأول, 1444
تاريخ الإصدار : 07 الخميس , جمادى الأولى, 1444
الکلمات المفتاحية:
Turbulent flow,
image processing,
CFD,
modelling,
ملخص المقالة :
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 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 domain. After the edge detection step, an orthogonal, structured, and staggered mesh is generated.
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