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.

Sign up for GitHub

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

Jump to bottom

Advection in Fourier space broken #23

Open

vpuri3 opened this issue Jun 27, 2022 · 2 comments

Member

vpuri3 commented Jun 27, 2022 •

edited

Loading

https://github.com/vpuri3/PDEInterfaces.jl/blob/940aee9cf3decda3583c03c6fbcfeff649daaaae/src/Spaces/TrigonometricPolynomials/Fourier.jl#L333-L367

product is being formed in modal space. not real space. i think the way to do this is to write a FunctionOperator:

function advect(duh, uh, p, t)
    # get vh from p
    v <- F \ Xh  * vh
    u <- F \ Xh * Dh * uh
    duh <- F \ (v * u)
end

Member Author

vpuri3 commented Jun 27, 2022

would have to fix SciML/SciMLOperators.jl#56

Member Author

vpuri3 commented Jun 27, 2022

or just figure out how to do adjoints, dealasing correctly by learning fourier methods properly

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment