Mappable Initial solution for PyFr

General
1

Hi,
since I want to perforam a transitional flat plate boundary layer calculation, I want to start at Re=100.000 at my inlet. Therefore is it possible to access the coordinates at the inlet and export them in order to map a predefined initial solution (tabulated one), or even better, is it possible to map another field solution (same mesh, but structured) to the whole flowfield?

It is a simple compressible Blasius Boundary Layer solution.

Thanks in advance

2

No one has an advice? Sorry to bother you guys, but this is kind of urgent :wink:

3

Hi Gabriel,

No one has an advice? Sorry to bother you guys, but this is kind of
urgent :wink:

    Hi,
    since I want to perforam a transitional flat plate boundary layer
    calculation, I want to start at Re=100.000 at my inlet. Therefore is
    it possible to access the coordinates at the inlet and export them
    in order to map a predefined initial solution (tabulated one), or
    even better, is it possible to map another field solution (same
    mesh, but structured) to the whole flowfield?

    It is a simple compressible Blasius Boundary Layer solution.

Currently, it is not possible to move solutions between grids. However,
when defining an initial condition you may specify a functional form
that is permitted to depend on x, y, z. For example:

rho = sin(x + y) * z + 0.1

If all you have is a tabulation you might try performing a decomposition
of some description in order to obtain a functional form.

Regards, Freddie.

4

Hi Freddie,
thank you for your answer.
I will try what you suggested, anyway, if define an array of e.g. u_initialize = (1,2,3,4,5,6,…) which size is equal to the y-coordinates of the inlet patch. I am not able to access them by setting up a for loop:
for i in range(len(y)):
u[i]=u_init[i]*u_infty