Comparison of ODE methods for laminar reacting gas flow simulations

Numerical Methods for Reacting Gas Flow Simulations

In this study, various numerical schemes for transient simulations of 2D laminar reacting gas flows, as typically found in chemical vapor deposition reactors, are proposed and compared. These systems are generally modeled by means of many stiffly coupled elementary gas phase reactions between a large number of reactants and intermediate species. The purpose of this study is to develop robust an...

Implicit Methods for Computing Chemically Reacting Flow

Multigrid methods for compressible laminar flow

An ODE-based Wall Model for Turbulent Flow Simulations

This paper presents a new wall model to compute turbulent boundary layers using the RANS equations in high Reynolds number flows. The model solves a two-point boundary value problem for a coupled set of equations for the streamwise velocity and the turbulent viscosity. Since it includes both the pressure gradient and the momentum balance of the full Navier-Stokes system, the ODE is valid farthe...

On a steady flow of multicomponent, compressible, chemically reacting gas

Abstract: We consider the system of equations governing a steady flow of polyatomic isothermal reactive gas mixture. The model covers situation when the pressure depends on species concentration and when the diffusion coefficients for each of the species are density-dependent. It is shown that this problem admits weak solution provided the adiabatic exponent for the mixture γ is grater then 7 3 .