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Opm::BinaryCoeff::H2O_Air Class Reference

Binary coefficients for water and nitrogen. More...

`#include <H2O_Air.hpp>`

## Static Public Member Functions

template<class Evaluation >
static Evaluation | henry (const Evaluation &temperature)
| Henry coefficent for air in liquid water.
template<class Evaluation >
static Evaluation | gasDiffCoeff (const Evaluation &temperature, const Evaluation &pressure)
| Binary diffusion coefficent for molecular water and air.
template<class Evaluation >
static Evaluation | liquidDiffCoeff (const Evaluation &temperature, const Evaluation &)
| Lacking better data on water-air diffusion in liquids, we use at the moment the diffusion coefficient of the air's main component nitrogen!!

## Detailed Description

Binary coefficients for water and nitrogen.

## Member Function Documentation

## gasDiffCoeff()

template<class Evaluation >

static Evaluation Opm::BinaryCoeff::H2O_Air::gasDiffCoeff | ( | const Evaluation & | temperature,
|  | const Evaluation & | pressure
| ) |  |

inline static

Binary diffusion coefficent for molecular water and air.

Parameters

  temperature | the temperature
  pressure | the phase pressure Vargaftik : Tables on the thermophysical properties of liquids and gases. John Wiley & * Sons, New York, 1975.

Walker, Sabey, Hampton: Studies of heat transfer and water migration in soils. Dep. of Agricultural and Chemical Engineering, Colorado State University, Fort Collins, 1981.

## henry()

template<class Evaluation >

static Evaluation Opm::BinaryCoeff::H2O_Air::henry | ( | const Evaluation & | temperature | ) |

inline static

Henry coefficent for air in liquid water.

Henry coefficent See: Stefan Finsterle, 1993 Inverse Modellierung zur Bestimmung hydrogeologischer Parameter eines Zweiphasensystems (fitted to data from the book "Tchobanoglous & Schroeder: Water Quality: Characteristics", Addison-Wesley, 1985)

## liquidDiffCoeff()

template<class Evaluation >

static Evaluation Opm::BinaryCoeff::H2O_Air::liquidDiffCoeff | ( | const Evaluation & | temperature,
|  | const Evaluation & |
| ) |  |

inline static

Lacking better data on water-air diffusion in liquids, we use at the moment the diffusion coefficient of the air's main component nitrogen!!

Diffusion coefficent for molecular nitrogen in liquid water.

The empirical equations for estimating the diffusion coefficient in infinite solution which are presented in Reid, 1987 all show a linear dependency on temperature. We thus simply scale the experimentally obtained diffusion coefficient of Ferrell and Himmelblau by the temperature.

See:

R. Reid et al.: "The properties of Gases and Liquids", 4th edition, pp. 599, McGraw-Hill, 1987

R. Ferrell, D. Himmelblau: "Diffusion Coeffients of Nitrogen and Oxygen in Water", Journal of Chemical Engineering and Data, Vol. 12, No. 1, pp. 111-115, 1967

The documentation for this class was generated from the following file:

- opm/material/binarycoefficients/H2O_Air.hpp