c
c =========================================================
subroutine flx3(ixyz,maxmx,meqn,mbc,mx,q,maux,aux,f)
c =========================================================
c
c # Dummy flux-function. If slope-limiting is applied (method(2)>2), this
c # function is required.
c
c # The flux is computed in x-direction if ixyz=1
c # or in y-direction if ixyz=2
c # or in z-direction if ixyz=3.
c
return
end