The CFD Module Physics Interface Guide

The CFD Module extends the functionality of the physics interfaces of the base package for COMSOL Multiphysics. The details of the physics interfaces and study types for the CFD Module are listed in the table. The functionality of the COMSOL Multiphysics base package is listed in the COMSOL Multiphysics Reference Manual.

In the COMSOL Multiphysics Reference Manual:

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Studies and Solvers

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The Physics Interfaces

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For a list of all the core physics interfaces included with a COMSOL Multiphysics license, see Physics Interface Guide.


Physics interface		Icon	Tag	Space Dimension	Available Study Type
Chemical Species Transport
Transport of Diluted Species1			tds	all dimensions	stationary; time dependent
Transport of Concentrated Species			tcs	all dimensions	stationary; time dependent
	Reacting Flow
	Laminar Flow		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Laminar Flow, Diluted Species1		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Turbulent Flow
	Turbulent Flow, k-ε		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Turbulent Flow, k-ω		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Turbulent Flow, SST		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization
	Turbulent Flow, Low Re k-ε		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization
	Reacting Flow in Porous Media
	Transport of Diluted Species		rfds	3D, 2D, 2D axisymmetric	stationary; time dependent
	Transport of Concentrated Species		rfcs	3D, 2D, 2D axisymmetric	stationary; time dependent
Fluid Flow
	Single-Phase Flow
	Creeping Flow		spf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Laminar Flow1		spf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Viscoelastic Flow		vef	3D,2D	stationary; time dependent
	Turbulent Flow
	Turbulent Flow, Algebraic yPlus		spf	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization
	Turbulent Flow, L-VEL		spf	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization
	Turbulent Flow, k-ε		spf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Turbulent Flow, Realizable k-ε		spf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Turbulent Flow, k-ω		spf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Turbulent Flow, SST		spf	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization
	Turbulent Flow, Low Re k-ε		spf	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization
	Turbulent Flow, Spalart-Allmaras		spf	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization
	Turbulent Flow, v2-f		spf	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization
	Large Eddy Simulation
	LES RBVM		spf	3D	time dependent
	LES RBVMWV		spf	3D	time dependent
	LES Smagorinsky		spf	3D	time dependent
	Rotating Machinery, Fluid Flow
	Rotating Machinery, Laminar Flow		spf	3D, 2D	frozen rotor; time dependent
	Rotating Machinery, Turbulent Flow, Algebraic yPlus		spf	3D, 2D	frozen rotor with initialization; time dependent with initialization
	Rotating Machinery, Turbulent Flow, L-VEL		spf	3D, 2D	frozen rotor with initialization; time dependent with initialization
	Rotating Machinery, Turbulent Flow, k-ε		spf	3D, 2D	frozen rotor; time dependent
	Thin-Film Flow
	Thin-Film Flow, Shell		tffs	3D	stationary; time dependent; frequency domain; eigenfrequency
	Thin-Film Flow, Domain		tff	2D	stationary; time dependent; frequency domain; eigenfrequency
	Thin-Film Flow, Edge		tffs	2D and 2D axisymmetric	stationary; time dependent; frequency domain; eigenfrequency
	Multiphase Flow
	Bubbly Flow
	Laminar Bubbly Flow		bf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Bubbly Flow, Turbulent Flow
	Bubbly Flow, Algebraic yPlus		bf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Bubbly Flow, L-VEL		bf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Bubbly Flow, k-ε		bf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Bubbly Flow, Realizable k-ε		bf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Bubbly Flow, k-ω		bf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Bubbly Flow, SST		bf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Bubbly Flow, Low Re k-ε		bf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Bubbly Flow, Spalart-Allmaras		bf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Bubbly Flow, v2-f		bf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Mixture Model
	Mixture Model, Laminar Flow		mm	3D, 2D, 2D axisymmetric	stationary; time dependent
	Mixture Model, Turbulent Flow
	Mixture Model, Algebraic yPlus		mm	3D, 2D, 2D axisymmetric	stationary; time dependent
	Mixture Model, L-VEL		mm	3D, 2D, 2D axisymmetric	stationary; time dependent
	Mixture Model, k-ε		mm	3D, 2D, 2D axisymmetric	stationary; time dependent
	Mixture Model, Realizable k-ε		mm	3D, 2D, 2D axisymmetric	stationary; time dependent
	Mixture Model, k-ω		mm	3D, 2D, 2D axisymmetric	stationary; time dependent
	Mixture Model, SST		mm	3D, 2D, 2D axisymmetric	stationary; time dependent
	Mixture Model, Low Re k-ε		mm	3D, 2D, 2D axisymmetric	stationary; time dependent
	Mixture Model, Spalart-Allmaras		mm	3D, 2D, 2D axisymmetric	stationary; time dependent
	Mixture Model, v2-f		mm	3D, 2D, 2D axisymmetric	stationary; time dependent
	Euler-Euler Model
	Euler-Euler Model, Laminar Flow		ee	3D, 2D, 2D axisymmetric	stationary; time dependent
	Euler-Euler Model, Turbulent Flow		ee	3D, 2D, 2D axisymmetric	stationary; time dependent
	Two-Phase Flow, Level Set
	Laminar Two-Phase Flow, Level Set		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Level Set, Algebraic yPlus		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Level Set, L-VEL		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Level Set, k-ε		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Level Set, Realizable k-ε		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Level Set, k-ω		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Level Set, SST		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Level Set, Low Re k-ε		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Level Set, Spalart-Allmaras		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Level Set, v2-f		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Phase Field
	Laminar Two-Phase Flow, Phase Field		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Phase Field, Algebraic yPlus		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Phase Field, L-VEL		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Phase Field, k-ε		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Phase Field, Realizable k-ε		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Phase Field, k-ω		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Phase Field, SST		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Phase Field, Low Re k-ε		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Phase Field, Spalart-Allmaras		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Two-Phase Flow, Phase Field, v2-f		—	3D, 2D, 2D axisymmetric	time dependent with phase initialization
	Three-Phase Flow, Phase Field
	Laminar, Three-Phase Flow, Phase Field		—	3D, 2D, 2D axisymmetric	time dependent
	Two-Phase Flow, Moving Mesh
	Laminar Two-Phase Flow, Moving Mesh		—	3D, 2D, 2D axisymmetric	time dependent
	Phase Transport
	Phase Transport		phtr	3D, 2D, 2D axisymmetric	stationary; time dependent
	Phase Transport, Mixture Model, Laminar Flow		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Phase Transport, Mixture Model, Algebraic yPlus		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Phase Transport, Mixture Model, L-VEL		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Phase Transport, Mixture Model, k-ε		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Phase Transport, Mixture Model, Realizable k-ε		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Phase Transport, Mixture Model, k-ω		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Phase Transport, Mixture Model, SST		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Phase Transport, Mixture Model, Low Re k-ε		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Phase Transport, Mixture Model, Spalart-Allmaras		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Phase Transport, Mixture Model, v2-f		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Porous Media and Subsurface Flow
	Brinkman Equations		br	3D, 2D, 2D axisymmetric	stationary; time dependent
	Darcy’s Law		dl	all dimensions	stationary; time dependent
	Multiphase Flow in Porous Media		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Two-Phase Darcy’s Law		tpdl	3D, 2D, 2D axisymmetric	stationary; time dependent
	Free and Porous Media Flow		fp	3D, 2D, 2D axisymmetric	stationary; time dependent
	Phase Transport in Porous Media		phtr	3D, 2D, 2D axisymmetric	stationary; time dependent
	Nonisothermal Flow
	Laminar Flow(1,2)		—	3D, 2D, 2D axisymmetric	stationary; time dependent; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow
	Turbulent Flow, Algebraic yPlus(2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, L-VEL(2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, k-ε (2)		—	3D, 2D, 2D axisymmetric	stationary; time dependent; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, Realizable k-ε (2)		—	3D, 2D, 2D axisymmetric	stationary; time dependent; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, k-ω (2)		—	3D, 2D, 2D axisymmetric	stationary; time dependent; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, SST(2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, Low Re k-ε (2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, Spalart-Allmaras(2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, v2-f (2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Large Eddy Simulation
	LES RBVM		—	3D	time dependent
	LES RBVMWV		—	3D	time dependent
	LES Smagorinsky		—	3D	time dependent
	High Mach Number Flow
	High Mach Number Flow		hmnf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Compressible Euler Equations		cee	3D, 2D	time dependent
	Turbulent Flow, k-ε		hmnf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Turbulent Flow, Spalart-Allmaras		hmnf	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization
Heat Transfer
Heat Transfer in Fluids1			ht	all dimensions	stationary; time dependent
Heat Transfer in Solids and Fluids1			ht	all dimensions	stationary; time dependent
	Conjugate Heat Transfer
	Laminar Flow(1,2)		—	3D, 2D, 2D axisymmetric	stationary; time dependent; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow
	Turbulent Flow, Algebraic yPlus(2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, L-VEL(2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, k-ε (2)		—	3D, 2D, 2D axisymmetric	stationary; time dependent; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, Realizable k-ε (2)		—	3D, 2D, 2D axisymmetric	stationary; time dependent; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, k-ω (2)		—	3D, 2D, 2D axisymmetric	stationary; time dependent; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, SST (2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, Low Re k-ε (2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, Spalart-Allmaras (2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
	Turbulent Flow, v2-f (2)		—	3D, 2D, 2D axisymmetric	stationary with initialization; time dependent with initialization; Stationary, one-way coupled NITF; time dependent, one-way coupled NITF
Heat Transfer in Porous Media			ht	all dimensions	stationary; time dependent
Thermal Stress, Layered Shell2, 4			—	3D	stationary; time dependent
Layered Shell			lshell	3D	stationary; eigenfrequency; eigenfrequency, prestressed; mode analysis; time dependent; time dependent, modal; time dependent, prestressed, modal; time dependent, modal reduced-order model; frequency domain; frequency domain, modal; frequency domain, prestressed; frequency domain, prestressed, modal; frequency domain, modal reduced-order model; frequency domain, AWE reduced-order model; random vibration (PSD); linear buckling
Piezoelectricity, Layered Shell2, 3			—	3D	stationary; eigenfrequency; time dependent; frequency domain
Mathematics
	Moving Interface
	Level Set		ls	all dimensions	time dependent with phase initialization
	Phase Field		pf	all dimensions	time dependent; time dependent with phase initialization
	Ternary Phase Field		terpf	3D, 2D, 2D axisymmetric	time dependent
This physics interface is a predefined multiphysics coupling that automatically adds all the physics interfaces and coupling features required.
Requires the addition of the AC/DC Module.
1 This physics interface is included with the core COMSOL package but has added functionality for this module. 2 This physics interface is a predefined multiphysics coupling that automatically adds all the physics interfaces and coupling features required.