A RANS flamelet-progress-variable method for computing reacting flows of real-gas mixtures

作者：Cutrone L; De Palma P; Pascazio G^*; Napolitano M

来源：Computers & Fluids, 2010, 39(3): 485-498.

DOI：10.1016/j.compfluid.2009.10.001

• High-pressure combustion
• Liquid-rocket engine
• Combustion chambers
• Single-phase approach

This paper provides an efficient numerical method for solving reacting flows of industrial interest in the presence of significant real-gas effects. The method combines a state-of-the-art solver of the Reynolds-averaged Navier-Stokes equations - equipped with the low-Reynolds number k - omega turbulence closure - with a combustion flamelet-progress-variable approach. A real-gas model as well as a detailed kinetic scheme are used to generate the flamelet library. The method is tested versus several applications chosen to demonstrate the importance of the real-gas effects and of the kinetic scheme for computing high-pressure combustion. The major contribution of the paper is to provide a single-phase approach which solves turbulent reacting real-gas flows at a computational cost comparable with that of the simulation of a non-reacting How thanks to the use of the flamelet library.

• 出版日期2010-3