CHEMKIN Interface

1. CHEMKIN is a public-domain program created by Sandia National Laboratories.

2. CHEMKIN consists of:
   • a thermodynamics database;
   • a library of Fortran subroutines which the user may call from his applications programmes to supply thermodynamic data, reaction-rate data and various other thermo-chemical data
   • a "stand-alone" interpreter programme that reads a "plain-language" file that specifies the chemical elements, the chemical species, the reactions, and any additional thermodynamic data for the thermo-chemical system under investigation.

3. Associated with CHEMKIN, is a further system that supplies transport data. It consists of:-
   • a transport-property database;
   • a library of Fortran subroutines which the user may call from his application programmes to supply viscosities, thermal conductivities, diffusion coefficients, and thermal diffusion ratios or coefficients calculated according to two approximations;
   • a fitting programme that generates polynomial fits to the detailed transport properties in order to make more efficient the calculations performed by the subroutine library.

4. The PHOENICS CHEMKIN Interface provides a range of facilities, from which the user may choose those that he requires, namely:
   • calculation of thermodynamic and transport properties of gas mixtures;
   • an improved formulation of the transport equations in the "mixture-averaged" approximation, including thermal-diffusion (the Soret effect);
   • calculation of source terms for laminar flow for chemical species and enthalpy that result from chemical reactions when the system is to be solved within the usual PHOENICS methodology;
   • a fully implicit solver for the solution of the chemical species and enthalpy variables in laminar-flow reacting systems with stiff chemical source terms;
   • the calculation of inlet properties, ie. the inflowing enthalpy of the gas-mixture, and either the mass-flux from the inlet gas velocity, or an inlet gas speed from the inlet mass-flux.

5. CHEMKIN is extensively used in connexion with the PHOENICS-CVD special-purpose program.

6. For more complete information about CHEMKIN, and the PHOENICS interface to it, click here.

7. CHEMKIN, and the interface, may be ordered from CHAM.

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GENIE

1. GENIE is an interface program supplied as part of PHOENICS, which facilitates the linking of PHOENICS (including multi-block) with third-party grid-generators and viewers, especially those devised originally for finite-element packages.

2. GENIE consists of two parts: a set of subroutines used for the conversion of grids and patches from external programs into SATELLITE Q1 and XYZ files, called the PEN (PHOENICS Element Neutral file) system; and a set of subroutines for the conversion of PHOENICS results, called the NEP (ir "PEN" backwards) system.

3. A full description can be found by clicking here.

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The TECPLOT Interface

1. TECPLOT is a graphics package designed for displaying the results of CFD calculations.

2. CHAM can supply the program, together with an interface which facilitates its use for the display of the results of calculations produced by PHOENICS.

3. Some pictures resulting from the combined use of PHOENICS, TECPLOT and GeoGrid-CSI may be seen by clicking below.
   geometry
   vectors
   streamlines
   temperature contours
   pressure contours
   iso-surface of temperature
   

4. TECPLOT, and the interface to it, may be ordered from CHAM.

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