128 research outputs found
A conservative pressure-correction scheme for transient simulations of reacting flows
AbstractAn algorithm is presented for numerical simulations of time-dependent low Mach number variable density flows with an arbitrary amount of scalar transport equations and a complex equation of state. The pressure-correction type algorithm is based on a segregated solution formalism. It is conservative and guarantees stable results, regardless of the difference in density between neighboring cells. Furthermore, states are predicted which exactly match the equation of state. In the one-dimensional example, considering non-premixed flames, a simplified flamesheet model is used to describe the combustion of fuel and oxidizer. We demonstrate that the predicted states exactly correspond to the equation of state. We illustrate the accuracy improvement due to higher order formulation and demonstrate grid convergence
Hybrid Rans/PDF calculations of a swirling bluff body flame ('SM1'): influence of the mixing model
Flow and Mixing Fields for Transported Scalar PDF Simulations of a Piloted Jet Diffusion Flame (‘Delft Flame III’)
Joint Scalar vs. Joint Velocity-Scalar PDF Modelling of a Bluff-Body Stabilised Flames with REDIM
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