cell squish

tinh

Hi colleagues

Could anyone knowing about cell squish in 'check elems' panel please tell me a description for its meaning?

I found nothing in HW Help

Thanks a lot

Altair Forum User

In my HW12 doc, I see:

 

2D:

 

The cell squish criteria describes the non-orthogonality of an element with respect to its faces for 3D elements or edges for 2D elements. It is defined as follows:

For 2D elements:

Ai = unit vector, normal to cell edge i

ri = vector connecting the cell centroid and the middle of edge i.

For 3D elements:

Ai = unit area vector, normal to cell edge i

ri = vector connecting the cell centroid and the centroid of face i

 

3D:

 

The cell squish criteria describes the non-orthogonality of an element with respect to its faces. It is defined as follows: with

A = face unit area vector

= 2D elements: vector connecting the adjacent cell centroids

3D elements: vector connecting the cell centroids and the cell face centroid

 

(Sorry for copy/paste, there are some missing characters)