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CHEMKIN-CFDCHEMKIN-CFD is a plug-in chemistry solver that is linked to CFD software to add accuracy, speed and stability to calculations using multi-step reaction kinetics. Detailed reaction kinetics is frequently required to accurately represent combustion and materials process reactions. Modelers who need combustion or materials process reactions to be more accurately represented use multi-step reaction kinetics. However, using detailed kinetics often causes problems for CFD simulations, because of computational stiffness, in which small changes in one variable may cause large changes in another. In the past, stiff chemistry simulations in CFD were characterized by long computational times and unstable solutions that often did not converge. The latest release of CHEMKIN-CFD tackles these challenges through advanced and more accurate numerical methods, allowing you to incorporate more detailed kinetics descriptions into your CFD simulations. CHEMKIN-CFD brings the chemistry-solving speed and accuracy of CHEMKIN-PRO to CFD simulations, providing remarkable computation time reductions and solution stability compared to conventional CFD-based chemistry solvers. The speed of calculation has been dramatically improved, as shown in the figure below, yielding improvements of up to five times over the previous version of CHEMKIN‑CFD (formerly known as KINetics). A major breakthrough in the technology underlying the new CHEMKIN-CFD results in virtually eliminating the previous version’s exponential increase in solution time with number of species. This upgrade ensures computation time results that have a more linear relationship with species count. Since the computational performance benefit increases with the size of the mechanism, the use of fully detailed or skeletal chemistry is now practical in a commercial engine development cycle. | ||||
CHEMKIN-CFD solution time benchmarks against predecessor KINetics solver
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Boiler Gas Burner |
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Can Gas Turbine Combustor |
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CHEMKIN-CFD provides an application programming interface (API) for direct connection and comes complete with step-by-step instructions on how to integrate this advanced solver technology with virtually any CFD code. In addition, Reaction Design provides expert services to assist in such integrations.
A customized version of CHEMKIN-CFD, CHEMKIN-CFD for ANSYS FLUENT, is now available, and is compatible with ANSYS FLUENT versions 6.2 and higher. Click here to learn more and request a license.
The CHEMKIN-CFD for ANSYS FLUENT technology comes with sample multi-step reaction mechanisms for any combustion applications including methane, propane and hydrogen. The following mechanisms are included with the CHEMKIN-CFD for ANSYS FLUENT installation:
CHEMKIN-CFD/API is supported on Windows and Linux platforms
Supported Operating Systems: Windows and Linux (32-bit and 64-bit) or AIX (64-bit)
CHEMKIN-CFD for ANSYS FLUENT is available for ANSYS FLUENT versions 6.2 and higher
) Japanese Version (PDF ))
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