Computational Simulation of Scramjet Combustors - A Comparison between Quasi-One Dimensional and 2-D Numerical Simulations

A review of numerical simulation and modeling of combustion in scramjets

“…The 1D model had significant limitations in that it is unable to simulation oblique shocks, expansion waves, and shear dominated viscous flow. 38 2D simulation results for static pressure along the bottom wall were in close agreement with experimental data. This work showed FLUENT's capability to simulate experimental work conducted using the DLR and NASA's SCHOLAR Supersonic Combustor.…”

“…37 Chandraprakash Tourani conducted 1D simulations and 2D numerical simulations of scramjet combustion using FLUENT Version 6.3. 38 The computational domain was based on the combustor configurations at DLR and NASA's SCHOLAR Supersonic Combustor. Experimental data from these facilities was used for assessing the validity of the simulations.…”

Mixing Enhancement in a Scramjet Combustor Using Fuel Jet Injection Swirl.

“…Results indicated that the length scales governing the swirl and axial velocity were different and simulations would be more accurate if they could cover a large range of mixing length scales[66].Recent numerical studies of supersonic flow or interior scramjet flow field simulations have used k-ε, k-ω turbulence models or combinations of both. Numerical investigation of scramjet combustors with combustion conducted by Vyas (2010)[7] and Tourani (2011)[67] used a k-ε turbulence,Mack (2006) [38] andJianwen (2008) [68] used a k-ω turbulence model whileRodriguez (2005) [61] andBhagwandin (2009) [69] used Mentor's SST k-ω turbulence model. However numerical studies using 2 equation k-ε turbulence models have been shown to under predict mixing rates for swirl flows.…”

Quasi-One-Dimensional Modelling of Scramjet Combustors with Stalker Boundary-Layer Coupling

“…Tourani [24] in his doctorate thesis, completed a comparison of quasi-one-dimensional modelling and 2D modelling techniques, also noted the inability of the 1D model to simulate "oblique shocks, expansion waves and their reflection as well as shear dominated viscous recirculation".…”