![]() Gives better prediction of separation and vortexes. KERNG - RNG derived two-equation k- e model.KECHEN - Chen-Kim two-equation k- e model.KE Variants - Several variants of the K-E model usually giving enhanced performance for recirculating flow.USER - User-defined model for advanced users.Useful for transitional flows and flows with adverse pressure gradients. KOMODL - Kolmogorov-Wilcox two- equation k-f model.KEMODL - Classical two-equation high Reynolds number.LVEL - Generalised length-scale zero-equation model, useful when there are many objects and the grid is coarse.The default setting is 200 times the laminar viscosity. CONSTANT-EFFECTIVE - The turbulent viscosity is constant.LAMINAR - The flow is laminar and there is no turbulence model.The available turbulence models, in PHOENICS, are divided into the following groups: as a particulate phase for which the particle trajectories are computed as they move through a continuous fluid. as two non-interpenetrating continua, separated by a free surface (Scalar Equation Method (VOF TVD type method)ĭ. as multiple inter-penetrating continua having the same range of properties (Algebraic Slip Method (Mixture method)Ĭ. Velocity components, temperature, composition, density, viscosity, volume fraction, etc IPSA (Eulerian-Eulerian method)ī. as two inter-penetrating continua, each having at every point in the space-time domain under consideration, its own: Multi-phase-flow phenomena can be simulated by PHOENICS in four distinct ways. ![]() PHOENICS was the first general-purpose computer code to be able to simulate multi-phase flows and it is still capable of doing so more effectively, and in a greater variety of ways, than most of its competitors. a layer of oil, floating on the surface of a river.fuel droplets and combustion gases in an engine,.Multi-phase flows are those involving, to name but a few examples: PLANT, which enables users to introduce new reaction schemes and material properties by way of formulae introduced into the data-input command file, Q1.CHEMKIN 2, the public-domain code to which PHOENICS has an interface,.CREK, a set of user-callable subroutines which handle the thermodynamics and finite-rate or equilibrium chemical kinetics of complex chemical reactions.ESCRS, "the Extended Simple Chemically Reacting System" built into user-accessible Fortran coding.SCRS, "the Simple Chemically Reacting System" built into user-accessible Fortran coding (which users may modify, but need not even look at).oil-spray) and solid (eg pulverized-coal) fuels.Ĭhemical reactions are simulated by PHOENICS in several ways, including: PHOENICS can handle the combustion of gaseous, liquid (e.g. It continues to be heavily used for these purposes. Mechanical and thermal stresses in immersed solids can be computed at the same time as the fluid flow and heat transfer.įrom its beginning in 1981, PHOENICS has been used for simulating processes involving chemical-reaction processes, and especially those involving combustion.Advanced radiation models, including surface-surface model with calculated view factors, a six-flux model and composite radiosity model for radiative heat transfer, known as IMMERSOL.Built-in interface to the CHEMKIN chemical database. Chemical kinetics including multi-component diffusion and variable properties.Combustion and Nox models, with a range of diffusion and kinetically controlled models including the unique Multi-Fluid Model for turbulent chemical reaction.Finite-volume approach on staggered or collocated grids, with 13 choices of discretization schemes for convection.Particle tracking, including turbulence dispersion effects.Inter-penetrating continua, including turbulence and modulation.Multi-phase flows of three kinds with a variety of built-in interphase-transfer models:.A wide range of built-in turbulence models for high and low-Reynolds number flows LVEL model for turbulence in congested domains and a variety of K-E models, including RNG, two- scale and two-layer models. ![]()
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