A compressible three-phase solver is presented that takes into account the effects of cavitation and condensation dynamics on sprayatomization,near-nozzle flows,and internal flows,particularly in the context of fuel-i...A compressible three-phase solver is presented that takes into account the effects of cavitation and condensation dynamics on sprayatomization,near-nozzle flows,and internal flows,particularly in the context of fuel-injection systems.The computational fluid dynamics solver tracks three phases-the liquid phase of the fuel,the vapor phase of the fuel,and the noncondensable gas into which the fuel is injected-allowing for complete miscibility between the gaseous phases.It uses the volume of fluid method,within a finite-volume framework,to track the interfaces between the fluid components.The solver is then validated for its ability to track interfaces,for mass conservation,and against experimental data of an expected use case,namely,cavitation in an injector.The solver is shown to perform well in all three validation tests.The solver can also be reduced to just a multiphase solver to study cavitation when the third gaseous component may be absent,such as in hydro-turbines.展开更多
文摘A compressible three-phase solver is presented that takes into account the effects of cavitation and condensation dynamics on sprayatomization,near-nozzle flows,and internal flows,particularly in the context of fuel-injection systems.The computational fluid dynamics solver tracks three phases-the liquid phase of the fuel,the vapor phase of the fuel,and the noncondensable gas into which the fuel is injected-allowing for complete miscibility between the gaseous phases.It uses the volume of fluid method,within a finite-volume framework,to track the interfaces between the fluid components.The solver is then validated for its ability to track interfaces,for mass conservation,and against experimental data of an expected use case,namely,cavitation in an injector.The solver is shown to perform well in all three validation tests.The solver can also be reduced to just a multiphase solver to study cavitation when the third gaseous component may be absent,such as in hydro-turbines.
