Constitutive models

Constitutive relations for fluids, solids, fluid-matrix interactions, and more. More...

Description

Constitutive relations formalize the functional dependence among physical variables, thereby providing the missing equations to close systems. Some constitutive relations, in particular if they are ad-hoc (e.g. Hooke's law) or empirical and not derived from basic principles, are also called material laws. Implementations of the functional relationships available in DuMu^x are collected in the folder dumux/material.

Most implementations follow one of the following paradigms

• free functions (in nested namespaces),
• stateless classes with static member functions where all parameters are function arguments,
• statefull classes that contain parameters that need to be initialized.

Stateless, purely static classes have the advantage that only the class type needs to be known to the class using them. Statefull classes need to be instantiated and the instantiated object is passed to the consumer class.

To view the description of individual constitutive models and classes, click on one the modules below.

Modules
	Relations for binary mixtures
	Binary coefficients such as binary diffusion coefficients, Henry coefficients.
	Chemical constitutive models
	Chemical reaction models.
	Thermodynamical properties of chemical species
	Thermodynamical properties of single chemical species or fixed mixtures of species ( \( \text{CO}_2, \text{H}_2\text{O}, \text{Air}, ... \))
	Constraint solvers for thermodynamic constraints of mixtures
	Constraint solvers converting primary to secondary variables.
	Equations of State
	Thermodynamic equations relating state variables (e.g. temperature, pressure, density)
	Fluid-matrix interactions
	Constitutive models for interaction of fluids and solids.
	Fluid States
	Fluid states represent the thermodynamic configuration of a system.
	Fluid Systems
	Fluid systems express the thermodynamic relations (functions).
	Solid States
	Solid states are responsible for representing all relevant thermodynamic quantities of solid systems.
	Solid Systems
	Solid systems express the thermodynamic relations (functions).

Files
file	constants.hh
	A central place for various physical constants occurring in some equations.
file	gstatrandomfield.hh
	Creating random fields using gstat.
file	idealgas.hh
	Relations valid for an ideal gas.

Classes
class	Dumux::Constants< Scalar >
	A central place for various physical constants occurring in some equations. More...
class	Dumux::GstatRandomField< GridView, Scalar >
	Creating random fields using gstat. More...
class	Dumux::IdealGas< Scalar >
	Relations valid for an ideal gas. More...