Pressure correction methods based on Krylov subspace conception for solving incompressible Navier–Stokes problems

Liu, Weiming; Ashworth, Mike; Emerson, David R.

doi:10.1002/fld.734

Cited by 1 publication

(1 citation statement)

References 30 publications

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“…In summary, two strategies of the numerical solutions were successfully developed: one is pressure correction-like method, e.g. SIMPLE method [12,13] and projection method [12,14,15]. The other approach is the pressure-stabilizing/Petrov-Galerkin (PSPG) scheme and the streamline-upwind/Petrov-Galerkin (SUPG) scheme [16] of the finite element method.…”

Section: Methodsmentioning

confidence: 99%

Numerical models for vehicle exhaust dispersion in complex urban areas

Liu

2010

Numerical Methods in Fluids

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SUMMARYTwo numerical models are presented for predicting vehicle exhaust dispersion in complex urban areas with or without the wind field. The models not only reflect the effect of building and street canyon configuration on the pollutant propagation, but also are able to predict the turbulent energy produced by moving vehicles on the road. In particular, in the discrete model, turbulent energy and pollutant concentration produced by each vehicle are dynamically described in the Lagrangian method. The pollutant propagation is calculated with the advection-diffusion equation. The Reynolds averaged Navier-Stokes equations are numerically solved for the wind flows. The movement and heat release rate of the vehicles are treated as sources of the turbulent energy equation for the computation of turbulent energy produced by the moving vehicles. This paper reports the detailed implementation of the models. Four typical numerical tests were carried out to represent the performance of the proposed numerical models.

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