LM-RBF-CFD

Hydrodynamics code using radial basis functions and Levenberg-Marquardt method

1. A file named problem.data must exist in the run directory, of the format
   &ProblemData
   x_dim = ! Width in CU
   y_dim = ! Height in CU
   res = ! points/CU
   tol = ! Tolerance for LM solver
   BC = ! Boundary conditions to use. [1] = Channel flow, [2] = Couette flow
   Re = ! Reynolds number of fluid
   / ! This line must be included

2. A file named constants.data must exist in the run directory, of the format
   &ConstantsData
   uleft = 1 ! x velocity of fluid at left boundary
   vleft = 0 ! y velocity of fluid at left boundary
   pleft = 0 ! pressure of fluid at left boundary
   uwall = 0 ! velocity of wall
   / ! This line must be included

3. A folder named out must exist in the run directory.

4. A file named alpha.dat, containing an initial guess of the RBF decomposition coefficients, may exist in the run directory. If it exists, it must be of the format
   4d-1
   5d1
   6d-2
   3d2
   ... etc, where ui = alpha(:nodes), vi = alpha(nodes:nodes*2), and pi = alpha(nodes*2:nodes*3)
   If it does not exist, the default guess of all 1s will be used for the decomposition coefficients.