非匹配密度N相Navier-Stokes Cahn-Hilliard Allen-Cahn混合物模型的统一框架
A unified framework for N-phase Navier-Stokes Cahn-Hilliard Allen-Cahn mixture models with non-matching densities
AI总结:
本文为具有非匹配密度的N相不可压缩Navier-Stokes Cahn-Hilliard Allen-Cahn混合物模型提出统一框架,该框架源于连续介质混合物理论,具有能量耗散结构且对基本变量选择不变,为探索现有模型联系及计算奠定基础。
摘要:
在过去的几十年里,人们提出了许多具有非匹配密度的N相不可压缩扩散界面流动模型。尽管这些模型旨在描述相同的物理现象,但它们通常是不同的,并且缺乏一个总体的建模框架。本文为具有单一动量方程的N相不可压缩Navier-Stokes Cahn-Hilliard Allen-Cahn混合物模型提供了一个统一框架。该框架自然地从连续介质混合物理论中产生,具有能量耗散结构,并且对基本变量的选择不变。这为探索现有N相模型之间的联系打开了大门,并促进了基于连续介质混合物理论的N相流动模型的计算。
英文摘要:
Over the past few decades, numerous N-phase incompressible diffuse-interface flow models with non-matching densities have been proposed. Despite aiming to describe the same physics, these models are generally distinct, and an overarching modeling framework is absent. This paper provides a unified framework for N-phase incompressible Navier-Stokes Cahn-Hilliard Allen-Cahn mixture models with a single momentum equation. The framework naturally emerges from continuum mixture theory, exhibits an energy-dissipative structure, and is invariant to the choice of fundamental variables. This opens the door to exploring connections between existing N-phase models and facilitates the computation of N-phase flow models rooted in continuum mixture theory.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。