Advanced multi-phase flow

1. Algebraic slip model
   • Top of file gxaslp.for
   • Subroutine GXASLP
   • Subroutine CONVEL
2. Height-of-liquid method
   • Top of file gxhol.for
   • Subroutine GXHOL
3. Scalar-equation method
   • Top of file gxsurf.for
   • Subroutine GXSURF
   • Subroutine GXSURPRP
4. Interphase forces
   • Top of file gxintp.for
   • Subroutine GXINTP
   • Subroutine GXLIFT
   • Subroutine GXVORT