Learning Forum

[KSD]

Doubt-1

I have created two 2D surface bodies in same plane.

And I used one surface body to give body of influence sizing to other surface body.

I am getting the desired mesh but I don't know why there is a question mark in connection module.

I was expecting after giving body of influence sizing, ANSYS meshing will automatically understand, that out of two body, one body is used for meshing only.

Here are the images showing what I have done

Two surface bodies

[peteroznewman]

I suggest opening the geometry in SpaceClaim and using the Imprint tool (or maybe the Project tool) to split the face of the fluid domain using the edges of the ellipse. Then delete the ellipse body. You will be left with a single surface body with three faces. In Meshing, you can use simple Sizing option on each face and you won't need to use Body of Influence.

[KSD]

Sir/Mam, yeah that was the way even I did before, using decomposition of domain but I found that using body of influence leads to give better quality cells compared to face sizing, as you can see in the image that the cells are highly skewed at the edges. And after using multizone or quad method the mesh goes out of order.

[peteroznewman]

The elements may be poor quality because the Element Size was left at Default. Try setting that to 10 mm or smaller.
Also, try to set the Mesh Metric for Skewness and set the Smoothing to a High setting. By setting a target value of skewness, you can push the mesher to improve this metric. Please show the statistics for the skewness of the elements.
It seems there is a defect in the geometry in the top left and bottom right corners. Turn on the Close Vertex display marker to see if there is an unwanted extra vertex in those corners and if so, repair them in SpaceClaim.

[KSD]

Sir/Mam, the main aim of using BOI or face sizing for my problem was to get finer mesh along jet, I just want you to check the video and let me know whether I am going with right approach or not.
Note: I have already asked similar doubt on other post, but here I am asking normally we use BOI or face sizing to give finer mesh around region of interest but what is the problem if I gave entire domain of same refinement. Whatever I do my solution never converges at the end.