COMSOL 6.4 - The Subsurface Flow Module Physics Interface Guide

The Subsurface Flow Module Physics Interface Guide

The table below lists all the physics interfaces specifically available with this module in addition to the core physics interfaces included in COMSOL Multiphysics. The Subsurface Flow Module enhances the COMSOL Multiphysics basic interfaces regarding the “Transport of Diluted Species” interface and adds the Poroelasticity interface to structural mechanics.

The Subsurface Flow Module has a set of physics interfaces adopted for a broad category of simulations important in earth investigations. These physics interface and models can serve equally well as tools for research, applied investigations, and classroom education.

The predefined physics interfaces available in this module cover three main application areas. The Subsurface Flow Module interfaces are available in 2D, 2D axisymmetry, and 3D. The physics interfaces for heat transfer and species transport are also available in 1D and 1D axisymmetry. All physics interfaces are available for both stationary and time-dependent analyses. The physics interfaces can be combined to model, for example, reacting systems and nonisothermal flow. Alternatively, predefined multiphysics interfaces can be used.

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 Diluted Species in Porous Media			tds	all dimensions	stationary; time dependent
Transport of Diluted Species in Fractures			dsf	3D, 2D, 2D axisymmetric	stationary; time dependent
	Reacting Flow
	Laminar Flow, Diluted Species1		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Reacting Flow in Porous Media
	Transport of Diluted Species		—	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
	Multiphase Flow
	Phase Transport
	Phase Transport		phtr	all dimensions	stationary; time dependent
	Phase Transport in Porous Media		phtr	all dimensions	stationary; time dependent
	Phase Transport in Free and Porous Media Flow		phtr	all dimensions	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
	Fracture Flow		ff	3D, 2D, 2D axisymmetric	stationary; time dependent
	Richards’ Equation		dl	all dimensions	stationary; time dependent
	Multiphase Flow in Porous Media		—	all dimensions	stationary; time dependent
	Two-Phase Darcy’s Law		tpdl	3D, 2D, 2D axisymmetric	stationary; time dependent
	Free and Porous Media Flow, Brinkman		fp	3D, 2D, 2D axisymmetric	stationary; time dependent
	Free and Porous Media Flow, Darcy		—	3D, 2D, 2D axisymmetric	stationary; time dependent
	Nonisothermal Flow
	Brinkman Equations		—	3D, 2D, 2D axisymmetric	stationary; time dependent; stationary, one-way NITF; time dependent, one-way NITF
	Shallow Water Equations
	Shallow Water Equations, Time Explicit		swe	1D and 2D	time dependent
Heat Transfer
Heat Transfer in Solids			ht	all dimensions	stationary; time dependent
Heat Transfer in Fluids1			ht	all dimensions	stationary; time dependent
Heat Transfer in Solids and Fluids1			ht	all dimensions	stationary; time dependent
	Heat Transfer in Fractures		htlsh	3D, 2D, 2D axisymmetric	stationary; time dependent; thermal perturbation, frequency domain
	Heat Transfer in Porous Media		ht	all dimensions	stationary; time dependent
Structural Mechanics
	Poroelasticity
	Poroelasticity, Solid2		—	3D, 2D, 2D axisymmetric	stationary; time dependent
1 This physics interface is included with the core COMSOL Multiphysics software 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.