Heat Transfer Problem in Ansys

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SUMMARY

The forum discussion centers on a recurring error encountered during a Transient Thermal Analysis simulation in Ansys 16.2 Workbench, specifically the message "An error occurred while starting the solver module." Users are advised to increase virtual memory as per the Ansys Mechanical User Guide, but this solution has proven ineffective for some. Participants suggest checking system specifications, including RAM and operating system type, and recommend reducing mesh size to alleviate memory issues.

PREREQUISITES
  • Understanding of Transient Thermal Analysis in Ansys 16.2 Workbench
  • Familiarity with virtual memory settings in Windows operating systems
  • Knowledge of mesh generation and optimization techniques
  • Basic concepts of boundary conditions in thermal simulations
NEXT STEPS
  • Research methods for optimizing mesh size in Ansys simulations
  • Learn how to configure virtual memory settings effectively in Windows
  • Explore the use of axi-symmetric and quarter-symmetry models in thermal analysis
  • Investigate troubleshooting techniques for solver errors in Ansys Mechanical User Guide
USEFUL FOR

Engineers and analysts working with thermal simulations in Ansys, particularly those facing memory-related issues during complex analyses.

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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