Webel vs SysPhS-1.1: Suggest SysPhSLibrary should explicitly support physical interactions with multiple conserved quantity flows. Example: Compressible fluid with mass and heat transfer.
Webel vs SysPhS-1.1: Suggest SysPhSLibrary should support Mass and FlowingMass as conserved quantities (for compressible fluids) with MassFlowElement interface block and MassFlowRate value type.
