Main Riser Line The main riser line may be used to define continuous contents of several lines. Please see InternalFluid for details. 1. Parameters 1.1. Main riser line flow parameters Flow rho: Density of contents Flow pressure end: End at which pressure is specified Flow pressure: Pressure at the specified end Flow pressure drop: Pressure drop 1.2. Riser lines Riser line: Line identifier End: Direction of tmain riser from given end, options are: End 1 End 2 Support Vessel Winch