Heat Transfer Problem in Ansys

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Discussion Overview

The discussion revolves around troubleshooting an error encountered in Ansys during a Transient Thermal Analysis of heat flow from a hydrothermal vessel. Participants are seeking solutions to a specific error related to the solver module, exploring potential causes and remedies.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • Ali reports an error when running a simulation in Ansys 16.2, suggesting that increasing virtual memory may be necessary, but the issue persists.
  • One participant asks for details about the model's nodes, elements, RAM, hard disk space, and whether the operating system is 32-bit or 64-bit.
  • Another participant suggests considering axi-symmetric or quarter-symmetry models to reduce hardware requirements.
  • A later reply indicates a similar problem with a model containing nearly 1 million nodes, mentioning 8GB of RAM and a 64-bit OS, and requests a solid solution.
  • One participant proposes creating a smaller mesh to see if the simulation runs, recommending to reduce the mesh size until it starts working.

Areas of Agreement / Disagreement

Participants express varying experiences with similar issues, but there is no consensus on a definitive solution. Multiple approaches and suggestions are presented without agreement on which is the most effective.

Contextual Notes

Participants have not provided specific assumptions about the model setup or the nature of the error beyond the initial report. The discussion lacks detailed information on the boundary conditions and the specific configurations of the models being used.

M M Ali Rafique
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Dear All,

I am facing a problem in Ansys

Ansys issue.

I am solving a model (Transient Thermal Analysis (Heat Flow from Hydrothermal Vessel)) in Ansys 16.2 Workbench

While reaching modeling stage, and upon running the simulation, program gives an below errorAn error occurred while starting the solver module. Please refer to the Troubleshooting section in the ANSYS Mechanical User Guide.
Project>Model>Transient Thermal>Solution

The solution of which is referred to at, and is mentioned in
Ansys Mechanical User Guide (http://148.204.81.206/Ansys/150/ANSYS%20Mechanical%20Users%20Guide.pdf) under the heading of

"An Error Occurred While Starting the Solver Module" (Page 1419)

According to which, I must access Control Panel of my computer to increase my virtual memory to run this simulation.

Even after doing that, problem persists.

What should I do?

I shall be extremely gratefulWith regards,
Ali
 

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How many nodes and elements in your model, and how much RAM and hard disk space does your computer have? Is it a 32-bit or 64-bit operating system?

Also, what kind of boundary conditions are you using in the model? Have you considered making an axi-symmetric or quarter-symmetry model to reduce the hardware requirements?
 
M M Ali Rafique said:
Dear All,

I am facing a problem in Ansys

Ansys issue.

I am solving a model (Transient Thermal Analysis (Heat Flow from Hydrothermal Vessel)) in Ansys 16.2 Workbench

While reaching modeling stage, and upon running the simulation, program gives an below errorAn error occurred while starting the solver module. Please refer to the Troubleshooting section in the ANSYS Mechanical User Guide.
Project>Model>Transient Thermal>Solution

The solution of which is referred to at, and is mentioned in
Ansys Mechanical User Guide (http://148.204.81.206/Ansys/150/ANSYS%20Mechanical%20Users%20Guide.pdf) under the heading of

"An Error Occurred While Starting the Solver Module" (Page 1419)

According to which, I must access Control Panel of my computer to increase my virtual memory to run this simulation.

Even after doing that, problem persists.

What should I do?

I shall be extremely gratefulWith regards,
Ali
Respected Sir,
I face the same problem now?
Have you solved it?
If yes, how did you solve it?

Thanks in advance.
Mech_Engineer said:
How many nodes and elements in your model, and how much RAM and hard disk space does your computer have? Is it a 32-bit or 64-bit operating system?

Also, what kind of boundary conditions are you using in the model? Have you considered making an axi-symmetric or quarter-symmetry model to reduce the hardware requirements?
Hello expert,
I have a similar problem as M.M Ali Rafique.
I have nearing 10lakhs nodes.
My system RAM is 8GB and 1TB hard disk and no HDD.
It is a 64 bit OS. All the heat convection and radiation is considered in my case.
Complex geometry are removed for analysis.

Please give me a solid solution.

Thanks in advance
 
You might not have enough memory to run this case. Try creating a smaller mesh (like 2 times smaller) to see if it runs, reduce your mesh until it starts.
 

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