The High Mach Number Flow Interfaces

There are three versions of the same predefined multiphysics interface (all with the name hmnf) that combine the heat equation with either the laminar or turbulent flow equations. The advantage of using the multiphysics interfaces — compared to adding the individual physics interfaces separately — is that a set of two-way couplings has been predefined. In particular, the physics interfaces use the same definition of the density, which can therefore be a function of both pressure and temperature. Solving this coupled system of equations usually requires numerical stabilization, which the predefined multiphysics interface also sets up.

These physics interfaces vary only by one or two default settings (see Table 5-1) or selections from check boxes or lists under the and sections for the physics interface.

Table 5-1: The High Mach Number Flow Default settings.
Physics Interface Label	Name	Turbulence Model Type	Turbulence Model	Heat Transport turbulence model
High Mach Number Flow, Laminar	hmnf	None	N/A	N/A
High Mach Number Flow, Algebraic yPlus	hmnf	RANS	Algebraic yPlus	Kays–Crawford
High Mach Number Flow, L-VEL	hmnf	RANS	L-VEL	Kays–Crawford
High Mach Number Flow, k-ε	hmnf	RANS	k-ε	Kays–Crawford
High Mach Number Flow, Realizable k-ε	hmnf	RANS	Realizable k-ε	Kays–Crawford
High Mach Number Flow, k-ω	hmnf	RANS	k-ω	Kays–Crawford
High Mach Number Flow, SST	hmnf	RANS	SST	Kays–Crawford
High Mach Number Flow, Low Reynolds Number k-ε	hmnf	RANS	Low Reynolds number k-ε	Kays–Crawford
High Mach Number Flow, Spalart–Allmaras	hmnf	RANS	Spalart–Allmaras	Kays–Crawford
High Mach Number Flow, v2-f	hmnf	RANS	v2-f	Kays–Crawford


	Most of the other physics nodes share the same setting options as described in this section and in Domain, Boundary, Edge, Point, and Pair Nodes for the High Mach Number Flow Laminar and Turbulent Interfaces. See also The Heat Transfer in Solids Interface in the Heat Transfer Module User’s Guide for details about the Heat Transfer in Solids physics node.