Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

The two datasets are actually the same. #3

Open
amiralizadeh1 opened this issue Feb 23, 2023 · 1 comment
Open

The two datasets are actually the same. #3

amiralizadeh1 opened this issue Feb 23, 2023 · 1 comment

Comments

@amiralizadeh1
Copy link

Hi omniscientoctopus,

Thank you for this great implementation.

I tried to use your dataset for an inverse problem on Burger's equation. they look exactly the same when I plot them. I guess there might be a difference in the solution of the PDE once we use different values for nu.

Secondly, In my inverse problem, I tried to identify the parameter nu of the PDE as well as the solutions of the PDE. Unfortunately, the NN can't converge towards the desired value, say nu=0.01/pi.

looking forward to your feedback, best.

@omniscientoctopus
Copy link
Owner

Hi there, thanks for your question.
I did a quick plot and the datasets look different. Difference between $\mu=0.1/\pi$ and $\mu=0.05/\pi$ is a bit subtle though.

b_shock_mu_01_pi = scipy.io.loadmat('Data/burgers_shock_mu_01_pi.mat')
solutionplot(b_shock_mu_01_pi['usol'], 1, 1)

image

b_shock_mu_005_pi = scipy.io.loadmat('Data/burgers_shock_mu_005_pi.mat')
solutionplot(b_shock_mu_005_pi['usol'], 1, 1)

image

b_shock_IC_sin2pi = scipy.io.loadmat('Data/burgers_shock_IC_sin2pi.mat')
solutionplot(b_shock_IC_sin2pi['usol'], 1, 1)

image

Does this answer your question?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

2 participants