Griding of complex structure in enermous numbers like a huge scale plate is a hard eloborate and mostly impossible. How this task could be implemented in a 3D plate with 100 x 10 x 2 meters dimension.
Are you sure you need of the total plate? Coud you show your geometry?
Yes I mean something like ship's body, Even though, it couldn't be matter of the case because, the whole plate would be scalable. Suppose that the plate has the foresaid size but you need to capture thousands of riblets on it. In this condition the meshing always will experinece an issue on meaahing process.
In order to describe one riblet while considering the whole body lenght requires to generate a mesh that has differences in cell sizes of some thousand of order of magnitude. Thinking about a correct grid generation cannot be arbitrary decided without thinking about the formulation used to solve the equations. Thus, first address the formulation you want to use.
Hi,
Solve the problem in its real scale. the scaling could result in different drag magnitudes.
I prefer the unstructured meshing in this case because hexahedral meshing (structured) is not efficient in this problem because of inaccuracies near the wall surface.
I think polygonal meshing tools could help.
It is not the matter of mesh types. It is always not plausible applying mesh.
Hamed Majidian
the formulation depends on the goal of your simulation. What do you want to analyse? In literature the flow over riblets were analysed by using DNS, sometime using LES.
Thanks for your response, I wish to know that if I make use of LES, I would not encounter with any meshing issue?
For enlightening the case, my problems mainly lies in meshing stage where the geometery with high articulated details cannot be meshed.
I don't know what is the specific problem that does not allow you to mesh the details. But if you cancel out the details of the riblets then it makes no sense to use resolution given by DNS and LES. Maybe you should ask about the issue in a dedicated forum of users of your software for grid generation
That is completely true and what I am struggling with. Much appreciate your kind answers.
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