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Advanced RNG Turbulence Package in FLUENT 4.5

 

In the upcoming release of FLUENT 4.5, the RNG advanced capability package includes a suite of computational models that significantly broaden its range of application. Key application areas of the RNG package include:

  • Transitional flows and the consequent time-dependent mean-flow effects
  • Characteristics of turbulent buoyancy-driven flows
  • Effects of strong rotation on turbulence and on heat and mass transfer phenomena
  • A compressible RNG model with high-Mach-number and compressible effects taken into account in the formulation of the turbulence equations
  • Accurate description of premixed combustion, including laminar and steady turbulent combustion, combustion instabilities, and combustion-induced unsteadiness
Comparison of predicted and experimental velocity profiles in a rotating channel at two different rotational speeds and flow rates.

Representative results of some test problems computed using the improved RNG advanced turbulence modeling package are shown here, illustrating the ability of FLUENT to give excellent predictions of physical behavior in complex flow situations.

Instantaneous oscillating flame front prediction using the RNG premixed combustion model.

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