S-ALE mesh

[Ramdas Chennamsetti]

Dear all:

This is regarding S-ALE mesh.

A. When we generate a fluid model using conventional mesh (non-S-ALE), node and element numbers are known. Furthermore, segment set, element set, node set etc can also be created before we run the solution. As we know the sets and numbers (nodes and elements) are required for various keywords / cards. 

B. In the case of S-ALE mesh, the mesh itself is generated during the solution. Then, sets and the numbers are not apriori. In that case, how do we input this data in various keywords/cards?

It is kindly requested to clarify point B. 

Sincerely,

Ramadas

[l...@schwer.net]

There are a few (3?) keywords specialized for SALE, e.g. *BOUNDARY_SALE_MESH_FACE.

 

I believe SALE meshing was not intended for detailed mesh describing as you outline. Rather a simple way to construct box like ALE meshes.

 

                --len

--
You received this message because you are subscribed to the Google Groups "LS-DYNA2" group.
To unsubscribe from this group and stop receiving emails from it, send an email to ls-dyna2+u...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/ls-dyna2/CAGHiZ7fs6%3DGNu-vJi_pWMi4%3DifZkZyFohx%3Dgt5Ek850hp2f5pg%40mail.gmail.com.

[l...@schwer.net]

Jim Kennedy kindly shared with me a note from the LSTC developer of SALE, Hao Chen, that suggests using the keyword *DEFINE_BOX to identify nodes on SALE meshes; see the last page of this document:

 

https://ftp.lstc.com/anonymous/outgoing/hao/sale/tutorials/S-ALE_Solver_1.pdf

 

                --len

 

From: l...@schwer.net <l...@schwer.net>
Sent: Friday, February 20, 2026 7:01 AM
To: 'Ramdas Chennamsetti' <ram.la...@gmail.com>; 'ls-d...@googlegroups.com' <ls-d...@googlegroups.com>
Subject: RE: [LS-DYNA2] S-ALE mesh

 

There are a few (3?) keywords specialized for SALE, e.g. *BOUNDARY_SALE_MESH_FACE.

 

I believe SALE meshing was not intended for detailed mesh describing as you outline. Rather a simple way to construct box like ALE meshes.

 

                --len

 

From: ls-d...@googlegroups.com <ls-d...@googlegroups.com> On Behalf Of Ramdas Chennamsetti
Sent: Friday, February 20, 2026 5:09 AM
To: ls-d...@googlegroups.com
Subject: [LS-DYNA2] S-ALE mesh

 

Dear all:

--

[Ramdas Chennamsetti]

Dear Dr Len:

Thank you for sharing. I will go through the document.

Best regards,

Ramadas