No Meshing ! Its Meshless CFD

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23 April 11950 times

A most common complaint often cited by computational fluid dynamics practitioners is the generation of a good quality computational mesh and is estimated to be costing about 70% of the entire simulation cycle. Though much progress has been made in terms of algorithm accuracy and speed over the last three decades, generating grids step for complex, real world computations still remains the most time consuming and least reliable component of CFD simulation process. Meshless methods thus provide a viable alternative to grid-based flow computation as they are supposed to not require the conventional grid structure and thereby relieving the many issues specifically related to grid generation step. This blog shall provide you an introduction and update about the popular meshless methods available today.

No Meshing ! Its Meshless CFD - 5.0 out of 5 based on 23 votes

Grid Generation for CFD Analysis of Turbomachinery

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18 April 11840 times

Though CFD has been widely used as a standard and well established engineering design analysis and optimization tool, the turbomachinery flow simulation still remains one of the challenges to handle. The typical reasons that make them so are the very complex nature of geometries and flow physics encountered in turbomachines. The following phenomena make turbomachinery flows extremely intricate and difficult to model for CFD simulation studies:

Grid Generation for CFD Analysis of Turbomachinery - 4.9 out of 5 based on 13 votes

Writing a User Defined Function (UDF) for CFD Modeling : Second Edition

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(15 votes)
17 April 11603 times

Hello Friends, its being a long time I haven't shared any new information on User Defined Functions (UDFs) available in ANSYS Fluent. Well that may make you think that UDFs are so tough to create, that this person took so long to write his second experience (blog) on UDF! Yeah, it’s funny, but let me tell that this is not the case with me, they (UDFs) are actually so interesting …and huge time & manual effort saver …and productive …and… I can go on and on if I start listing down all the plus points of using UDFs in Fluent. So, long story made short, I was fully enjoying past few months in learning and using this UDF & Scheme programming knowledge to Automate CFD studies in ANSYS Fluent.

Writing a User Defined Function (UDF) for CFD Modeling : Second Edition - 5.0 out of 5 based on 15 votes

CFD Simulation of Flow in a Catalytic Converter

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14 April 14709 times

As the performance of a catalytic converter is substantially affected by the flow distribution inside the substrate, a uniform flow distribution can increase its efficiency, lower the pressure drop and optimize engine performance. The flow distribution in a catalytic converter assembly is governed by the geometry configurations of inlet and outlet cone section, the substrate and exhaust gas compositions and therefore a better design of the catalytic converter is very important. In this blog we shall have insights of CFD modeling approach of flow inside a catalytic converter with the help a flow visualization.

CFD Simulation of Flow in a Catalytic Converter - 4.8 out of 5 based on 12 votes

Basics of Grid Generation for CFD Analysis

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08 April 7275 times

Grid generation or meshing is a very critical part within the CFD simulation process as it not only dictates the simulation time but also the accuracy of results of the study. Generating a very coarse and poor quality mesh/ grid often leads to non-physical or highly inaccurate simulation results though may be solved on a very powerful solver. Hence the grid generation skills, capability and its exposure are of equal importance as much as that of the solver operations.

Basics of Grid Generation for CFD Analysis - 5.0 out of 5 based on 8 votes

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