applications/solvers/incompressible/pimpleDyMFoam/UEqn.H

   1     fvVectorMatrix UEqn
   2     (
   3         fvm::ddt(U)
   4       + fvm::div(phi, U)
   5       + turbulence->divDevReff(U)
   6     );
   7
   8     if (ocorr != nOuterCorr-1)
   9     {
  10         UEqn.relax();
  11     }
  12
  13     if (momentumPredictor)
  14     {
  15         solve(UEqn == -fvc::grad(p));
  16     }