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Ricardo Oliveira

AcuSolve error

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This typically has to do either with initialization and/or model setup.  Please post the complete .inp and .Log files, if possible.  You may also want to contact your regional Altair support team.

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Based on what I see in the input file, you have a single surface set intended to be used as both inflow and outflow - and only defined by velocity Nodal Boundary Conditions.  Is that correct?  This is really not a recommended setup.  It may run, but you should still use Simple Boundary Condition on that surface - maybe use type = inflow, with inflow type velocity, and set the x-velocity to 1.0.  In addition, use your Nodal Boundary Conditions, and set the precedence to 2 instead of the default of 1.  As I said, it's not a recommended approach, but it may run once you have a complete boundary condition description using Simple BC and Nodal BC together.

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Thank you for the reply !

 

The problem was related to the dimensions of the model. I did not scale the model properly when exporting from Hypermesh to Acuconsole.

 

Regarding your comment, I have made some simulations with only the Nodal Boundary Conditions set and the simulation ran. Do you think that this can originate some problems?

 

Best,

Ricardo

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NBC only may sometimes work, but it doesn't describe a complete set of boundary conditions for all variables.  A full inlet, for example, requires a combination of NBCs and EBCs, which is generally accomplished by setting Simple BC.  Best practice is to use Simple BC, then NBC along with it to define the profile.

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