COMSOL Multiphysics, while powerful for simulations, can generate large file sizes, particularly for complex projects. A YouTube tutorial titled "Reduce file size of COMSOL mph file easily | Learn with BK" provides valuable insights into minimizing the file size of COMSOL projects. This blog post summarizes the tutorial's key points, offering a simple guide to reducing file size, which is particularly useful for sharing or transferring files.
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Steps to Reduce COMSOL File Size
Clearing Mesh Data
- Go to the Mesh Tab: In your COMSOL project, navigate to the 'Mesh' tab.
- Clear All Meshes: Select 'Clear All Meshes'. This action removes all mesh data from the simulation, which can significantly reduce the file size.
Clearing Solution Data
- Navigate to Study Tab: Switch to the 'Study' tab in the project.
- Clear All Solutions: Choose 'Clear All Solution'. This step will remove all solution data from the model.
Saving the Reduced File
- Save the File: After clearing the meshes and solutions, save the file. The new file will be significantly smaller in size compared to the original.
Considerations and Implications
File Size Comparison
- The tutorial demonstrates that the original file size of 3.19 GB was reduced to just 5.28 MB, highlighting the effectiveness of this method.
Re-running Simulations
- Regenerating Mesh and Solution Data: Although the reduced file is easier to share, remember that the recipient will need to re-run the simulation to regenerate the mesh and solution data.
- Retaining Settings: All plot settings and evaluations remain intact, so only the mesh and solution data need to be recalculated.
Conclusion
This method of reducing file size in COMSOL Multiphysics is a practical solution for managing large files, especially when sharing or transferring data. While it requires re-running simulations to regenerate specific data, the significantly smaller file size makes it a worthwhile trade-off for easier file management and sharing.
In summary, the tutorial provides a straightforward approach to reducing the size of COMSOL project files. This technique is invaluable for researchers and engineers who frequently share simulation data or work with limited storage resources.
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