Research output: Contribution to Journal/Magazine › Literature review › peer-review
Research output: Contribution to Journal/Magazine › Literature review › peer-review
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TY - JOUR
T1 - Physical modelling and advanced simulations of gas-liquid two-phase jet flows in atomization and sprays
AU - Jiang, Xi
AU - Siamas, G. A.
AU - Jagus, K.
AU - Karayiannis, T. G.
PY - 2010/4
Y1 - 2010/4
N2 - This review attempts to summarize the physical models and advanced methods used in computational studies of gas-liquid two-phase jet flows encountered in atomization and spray processes. In traditional computational fluid dynamics (CFD) based on Reynolds-averaged Navier-Stokes (RANS) approach, physical modelling of atomization and sprays is an essential part of the two-phase flow Computation. In more advanced CFD such as direct numerical simulation (DNS) and large-eddy simulation (LES), physical modelling of atomization and sprays is still inevitable. For multiphase flows, there is no model-free DNS since the interactions between different phases need to be modelled. DNS of multiphase flows based on the one-fluid formalism coupled with interface tracking algorithms seems to be a promising way forward, due to the advantageous lower costs compared with a multi-fluid approach. In LES of gas-liquid two-phase jet flows, subgrid-scale (SGS) models for complex multiphase flows are very immature. There is a lack of well-established SGS models to account for the interactions between the different phases. In this paper, physical modelling of atomization and sprays in the context of CFD is reviewed with modelling assumptions and limitations discussed. In addition, numerical methods used in advanced CFD of atomization and sprays are discussed, including high-order numerical schemes. Other relevant issues of modelling and simulation of atomization and sprays such as nozzle internal flow, dense spray, and multiscale modelling are also briefly reviewed. (C) 2009 Elsevier Ltd. All rights reserved.
AB - This review attempts to summarize the physical models and advanced methods used in computational studies of gas-liquid two-phase jet flows encountered in atomization and spray processes. In traditional computational fluid dynamics (CFD) based on Reynolds-averaged Navier-Stokes (RANS) approach, physical modelling of atomization and sprays is an essential part of the two-phase flow Computation. In more advanced CFD such as direct numerical simulation (DNS) and large-eddy simulation (LES), physical modelling of atomization and sprays is still inevitable. For multiphase flows, there is no model-free DNS since the interactions between different phases need to be modelled. DNS of multiphase flows based on the one-fluid formalism coupled with interface tracking algorithms seems to be a promising way forward, due to the advantageous lower costs compared with a multi-fluid approach. In LES of gas-liquid two-phase jet flows, subgrid-scale (SGS) models for complex multiphase flows are very immature. There is a lack of well-established SGS models to account for the interactions between the different phases. In this paper, physical modelling of atomization and sprays in the context of CFD is reviewed with modelling assumptions and limitations discussed. In addition, numerical methods used in advanced CFD of atomization and sprays are discussed, including high-order numerical schemes. Other relevant issues of modelling and simulation of atomization and sprays such as nozzle internal flow, dense spray, and multiscale modelling are also briefly reviewed. (C) 2009 Elsevier Ltd. All rights reserved.
KW - Modelling
KW - Simulation
KW - Atomization
KW - Spray
KW - Liquid Jet
KW - Two phase
KW - Direct numerical simulation
KW - Large-eddy simulation
KW - LARGE-EDDY SIMULATION
KW - DIRECT NUMERICAL-SIMULATION
KW - FINITE-DIFFERENCE SCHEMES
KW - FLAMELET-GENERATED MANIFOLDS
KW - SUBGRID-SCALE INTERACTIONS
KW - TURBULENT REACTIVE FLOWS
KW - SPECTRAL-ELEMENT METHOD
KW - DIRECT-INJECTION ENGINE
KW - DIESEL FUEL-INJECTION
KW - LEVEL SET METHODS
U2 - 10.1016/j.pecs.2009.09.002
DO - 10.1016/j.pecs.2009.09.002
M3 - Literature review
VL - 36
SP - 131
EP - 167
JO - Progress in Energy and Combustion Science
JF - Progress in Energy and Combustion Science
SN - 0360-1285
IS - 2
ER -