A unified handling of immiscible and miscible fluids

作者：Park Jinho^*; Kim Younghwi; Wi Daehyeon; Kang Nahyup; Shin Sung Yong; Noh Junyong

来源：Computer Animation and Virtual Worlds, 2008, 19(3-4): 455-467.

DOI：10.1002/cav.256

• multiple fluids
• lattice Boltzmann method
• Cahn-Hilliard equation

Conventional level set-based approaches have an inherent difficulty in tracking miscible fluids due to its discrete treatment for interface. This paper proposes a unified framework to efficiently handle both miscible and immiscible fluid simulations. Based on the chemical potential energy, our method describes the evolution of multiple fluids as time-varying concentration fields. Handling of multiple fluids is straightforward and, unlike level set methods, ad hoc reinitialization or fictitious particle deployment is not necessary. For numerical computation of the Navier-Stokes equations, we adopt advanced lattice Boltzmann methods (LBMs) for computational efficiency. The experiments show that our approach works well with immiscible fluids, miscible fluids, and interaction With objects.

• 出版日期2008-8