Mass-conservation-improved phase field methods for turbulent multiphase flow simulation
نویسندگان
چکیده
منابع مشابه
Heat and Mass Transfer in Turbulent Multiphase Channel Flow
Direct numerical simulation is used to assess the importance of compressibility in turbulent channel flow of a mixture of air and water vapor with dispersed water droplets. The dispersed phase is allowed to undergo phase transition, which leads to heat and mass transfer between the phases. We compare simulation results obtained with an incompressible formulation with those obtained for compress...
متن کاملSimulations of dispersed turbulent multiphase flow
Direct numerical simulations of homogeneous isotropic turbulence are used to investigate the effects of turbulence on the transport of particles in gas flows or bubbles in liquid flows. The inertia associated with the bubbles or the particles leads to locally strong concentrations of these in regions of instantaneously strong vorticity for bubbles or strain-rate for particles. This alters the a...
متن کاملDirect numerical simulation of incompressible multiphase flow with phase change
Title of dissertation: DIRECT NUMERICAL SIMULATION OF INCOMPRESSIBLE MULTIPHASE FLOW WITH PHASE CHANGE Moon Soo Lee, Doctor of Philosophy, 2015 Dissertation directed by: Professor Amir Riaz Department of Mechanical Engineering Phase change problems arise in many practical applications such as air-conditioning and refrigeration, thermal energy storage systems and thermal management of electronic...
متن کاملSimulation of Large Deformation of Materials Using Multiphase Flow Methods
Numerical calculation of interactions of different materials, such as fluid-structure interactions, has been a significant challenge for many numerical methods especially when the problem involves large deformation of solids that interact with fluids. For a fluid the stress can often be calculated from the strain rate, which can be calculated directly from the velocity fields. For a solid mater...
متن کاملUMIST Mass conservation in least squares methods for Stokes flow
In this paper some experience of using a new least squares, finite element method for solving Stokes flow in two dimensions based on approximating the derivative of stress and stream functions is reported. This work gives rise to serious concerns about the lack of mass conservation in the least squares approach to solving fluids problems both in the method discussed here and in other least squa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Mechanica
سال: 2018
ISSN: 0001-5970,1619-6937
DOI: 10.1007/s00707-018-2304-2