Large eddy simulation modelling of combustion for propulsion applications.

Large eddy simulation of propane combustion in a planar trapped vortex combustor

Propane combustion in a trapped vortex combustor (TVC) is characterized via large eddy simulation coupled with filtered mass density function. A computational algorithm based on high order finite difference (FD) schemes, is employed to solve the Eulerian filtered compressible Navier-Stokes equations. In contrast, a Lagrangian Monte-Carlo solver based on the filtered mass density function is inv...

Dispersion, Mixing, and Combustion in Uniform- and Variable- Density Air-breathing High-speed Propulsion Flows

This is a summary of significant accomplishments in investigations on the dispersion, mixing, and combustion in uniformand variable-density air-breathing high-speed propulsion flows related to scramjet propulsion. In experimental work, progress made in the development of testsection modifications allowed inclined-jet injection in supersonic flow to be studied with and without chemical reactions...

LES of a Meso Combustion Chamber with a Detailed Chemistry Model: Comparison between the Flamelet and EDC Models

The goal of this paper is to contribute to the design of high-performance mesocombustors, a field currently under rapid development, in particular for propulsion, e.g., for UAVs, and micro/meso-electrical power generators. This study is focused on a cylindrical combustor of 29 cm, fuelled by methane and air, which provides 2 kW of thermal power. The device was entirely designed and built at the...

Investigations of Three- Dimensional Turbulent Cavity Flow Using Large Eddy Simulation Approach

Simulation and modelling of the waves transmission and generation in a stator blade row in a combustion-noise framework

The combustion noise in aero-engines is known to have two different origins. First, the direct combustion noise is directly generated by the flame itself. Second, the indirect combustion noise is caused by the acceleration in the turbine stages, of entropy spots generated by the combustion. In both cases, the turbo-machinery is involved in the combustion-noise transmission and generation. Numer...