The objective of this paper is to present recent research on the use of a Reynolds Stress Closure Model (RSCM) for a Lean Direct Injection (LDI) combustor with swirlers. This paper will provide comparisons between RSCM results, k-ε turbulence model results, and experimental data for chemically nonreactive swirling flows. The results show that, for high degree swirl flow, the RSCM can provide pr...

In the present paper the Flamelet-Generated Manifold (FGM) chemistry reduction method is implemented and extended for the inclusion of all the features that are typically observed in stationary gas-turbine combustion. These consist of stratification effects, heat loss and turbulence. The latter is included by coupling FGM with the Reynolds Averaged Navier Stokes (RANS) model. Three control vari...

From the viewpoints of securing a stable supply of energy and protecting our global environment in the future, the integrated gasification combined cycle (IGCC) power generation of various gasifying methods has been introduced in the world. Gasified fuels are chiefly characterized by the gasifying agents and the synthetic gas cleanup methods and can be divided into four types. The calorific val...

Simultaneous planar laser-induced incandescence, hydroxyl radical planar laser-induced fluorescence, and droplet Mie scattering are used to study the instantaneous flame structure and soot formation process in an atmospheric pressure, swirl-stabilized, liquid-fueled, model gas-turbine combustor. Optimal excitation and detection schemes to maximize single-shot signals and avoid interferences fro...

In the field of fluid engineering, controlling turbulent flows remains a crucial problem. This paper presents a basis of numerical methods and turbulence models for the large Eddy simulation. Simulation results include the unsteady analyses of complex flows, such as the vortex dynamics of turbulent jets subject to inlet perturbations and the reacting flow with flame propagation in a gas–turbine...

At subcritical pressures, atomization devices in chemical-propulsion systems must ensure proper rupture of the liquid volume through aerodynamic shearing and homogeneous dispersion of the liquid droplets in the combustion chamber. The gas environment in the combustor is typically hot as a result of the heat released by chemical reactions, with part of its enthalpy being employed in vaporizing t...