Integrate PDEs in Femlab - Get Help Here

In summary, the conversation discusses the integration of equations in Femlab. The first speaker is asking for help with integrating three PDEs and two coupled equations in integral format. The second speaker asks for clarification on whether the integration is for analysis or post-processing. The first speaker clarifies that it is for their main equation, which is coupled with their PDE equation and involves two variables that change with respect to time. The second speaker suggests using integration coupling variables and mentions the availability of manuals for reference.
  • #1
mery
3
0
Hi,
I have three PDEs plus 2 coupled eq in integral format. does anyone know how to do the integration in Femlab?
Thanks
 
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  • #2
Hi Mery, are you after introducing an integral of some quantity in the analysis or "just" integrating something for post-processing or such? For the former, integration coupling variables might do the trick, for the latter, the post-processing integration commands ("meshintegrate", "postint") would be usable.
 
  • #3
Hi PerennialII,
Is not for post processing. It's my main equation which is coupled with my PDE eq. in my PDE I have to variables call C and q which both of them change with respect to time and for q I have another eq which is in integral format and is kind of averaging over the radius.
Thanks for your help
 
  • #4
Sounds like could try to implement it using integration coupling variables, i.e. can define an integral over a domain/surface/edge and use (project) the resulting variable to your another equation and its domain. You've access to the manuals?
 

FAQ: Integrate PDEs in Femlab - Get Help Here

How do I begin using Femlab to integrate PDEs?

To begin using Femlab, you will first need to download and install the software onto your computer. Once installed, you can open the program and begin working on your PDE integration. There are also online tutorials and guides available to help you get started.

What types of PDEs can be integrated using Femlab?

Femlab can integrate a wide range of PDEs, including parabolic, elliptic, and hyperbolic equations. It also supports systems of PDEs and can handle boundary value problems. However, it is always recommended to check with the software documentation or support team for specific details on which PDEs are supported.

Can I customize the settings and parameters for PDE integration in Femlab?

Yes, Femlab allows for customization of various settings and parameters for PDE integration. This includes choosing the numerical method, specifying boundary conditions, and adjusting the mesh density. You can also add additional features and functions using the built-in scripting language.

Is there a way to check my results and ensure accuracy when using Femlab to integrate PDEs?

Yes, Femlab offers various tools for checking and validating results. This includes visualization tools for plotting and examining the solution, as well as error estimation and convergence analysis. You can also compare your results to analytical solutions or results from other software for verification.

Can I get help if I encounter issues or difficulties while using Femlab to integrate PDEs?

Yes, there are various resources available for getting help with Femlab. These include online forums and communities, as well as official support from the software developers. You can also consult the documentation and tutorials for troubleshooting tips and techniques.

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