On Performance of Advection Schemes in the Prediction of Diesel Spray and Fuel Vapour Distributions

• We have investigated the performance of advection schemes (focusing mainlyon Total Variation Diminishing, TVD, schemes)applied in modelling diesel sprays, and assessed their influence on liquidspray penetration and fuel vapour distribution. Here,we compare sprays simulated using several types of TVD schemes (Superbee,MUSCL, limited Linear, and UMIST) – andstandard upwind and linear schemes as references – in conjunction withthree different turbulence models (standard, RNG andLaunder-Sharma k-ε models), to non-reacting diesel sprays observed inthe Sandia high-pressure, high-temperature constant-volume vessel. The OpenFOAM CFD code was used for all of the simulationsdescribed. In addition to comparing thesimulations to experimental data, we provide overall assessments of theperformance and utility of the TVD schemes in multi-dimensional diesel modelling.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)

Nyckelord

spray

diesel

numerical scheme

TVD

fuel distribution

Publikations- och innehållstyp

kon (ämneskategori)

ref (ämneskategori)