Simulating Hydrostatic Pressure in ALE2D Analysis
I’m performing a 2D water entry analysis of a wedge using the SALE method. Following the examples ( http://ftp.lstc.com/anonymous/outgoing/hao/sale/models/misc/ , sale2d), I built the model, but the simulation aborted with some errors.
1. The first error is related to the keyword *INITIAL_HYDROSTATIC_ALE. I know we need to use a solid set for the ALESID entry in the card in a 3D ALE analysis, but what if there are no solid elements in the 2D plain strain problem? I noticed in the example, CPIDZ in the *ALE_STRUCTURED_MESH card was left empty, and I guess it is the way to create the 2D ALE mesh. I also noticed that the *SMMALE_MESH_SET_SHELL keyword was used in the file mesh_sale.k. I don’t know if it is related to the creation of the “solid set” because I didn’t find this keyword neither in the manual nor in the internet.
2. The second error is very confusing. I specified the ALE2D section to the material parts Air and Water with ALEFORM = 11 and ELFORM = 13 (plain strain), as did in the examples, but a 10380 error arose in the message file which says:
Element formulation/Element type mis-matched
Part ID 11, Secion ID 11
ELFORM 13, Element type shell.
I checked my model very carefully and really can’t understand why this error would occur.
The keyword files of my model and the afore-mentioned examples have been attached.
I cannot see your attached files. can you attach it again?
Sorry about that. There is a default file scanner that flags k files. I just tried another fix to allow them through. I will be sure to get this fixed today.