bc2amr

Signature:

subroutine bc2amr(val, aux, nrow, ncol, meqn, naux, hx, hy, level, time, xleft, xright, ybot, ytop, xlower, ylower, xupper, yupper, xperiodic, yperiodic, spheredom)

Arguments:

integer, intent(in):

• nrow: Horizontal dimension of the input patch.
• ncol: Vertical dimension of the input patch.
• meqn: Number of solution variables.
• naux: Number of aux variables.
• level: Level of the input patch.

double precision, intent(in):

• time: Time at which boundary conditions are being applied.
• xleft: Left bound of the input patch.
• xright: Right bound of the input patch.
• ybot: Bottom bound of the input patch.
• ytop: Top bound of the input patch.
• xlower: Left bound of the physical domain.
• xupper: Right bound of the physical domain.
• ylower: Bottom bound of the physical domain.
• yupper: Top bound of the physical domain.
• aux(nrow,ncol,meqn): Aux variables on the input patch.

logical, intent(in):

• xperiodic: Value is .true. if the physical domain is periodic in x.
• yperiodic: Value is .true. if the physical domain is periodic in y.
• spheredom: Value is .true. if the physical domain is spherically symmetric.

double precision, intent(inout):

• val(nrow,ncol,meqn): Solution values on the input patch.

Description:

Takes a grid patch with mesh widths hx and hy, of dimensions nrow by ncol, and uses the boundary conditions to set the solution values on any piece of the patch which extends outside the physical domain.

User-specified boundary conditions must be included in this routine.