L(274)
TEXT("Darcy Flow" Around A Moving Van  
TITLE
  The following example provides the potential-flow
  solution to the preceding problem. The solution is
  obtained much more rapidly; but the solution is less
  realistic.
DARCY=T;ENUL=0.0;ENUT=0.0
ROAD=SKIP
CONPOR(BODY1,0.0,VOLUME,#1,#2,#2,#2,#2,#4)
CONPOR(BODY2,0.0,VOLUME,#1,#2,#3,#3,#3,#4)
LITER(P1)=-1000;csg3=cngr
LITER(U1)=1;LITER(V1)=1;LITER(W1)=1
LSWEEP=10