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Direct van der Waals simulation (DVS) of phase-transforming fluids.

ABSTRACT: We present the method of direct van der Waals simulation (DVS) to study computationally flows with liquid-vapor phase transformations. Our approach is based on a discretization of the Navier-Stokes-Korteweg equations, which couple flow dynamics with van der Waals' nonequilibrium thermodynamic theory of phase transformations, and opens an opportunity for first-principles simulation of a wide range of boiling and cavitating flows. The proposed algorithm enables unprecedented simulations of the Navier-Stokes-Korteweg equations involving cavitating flows at strongly under-critical conditions and 𝒪(10⁵) Reynolds number. The proposed technique provides a pathway for a fundamental understanding of phase-transforming flows with multiple applications in science, engineering, and medicine.

SUBMITTER: Hu T

PROVIDER: S-EPMC10022896 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature

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Direct van der Waals simulation (DVS) of phase-transforming fluids.

Hu Tianyi T Wang Hao H Gomez Hector H

Science advances 20230317 11

We present the method of direct van der Waals simulation (DVS) to study computationally flows with liquid-vapor phase transformations. Our approach is based on a discretization of the Navier-Stokes-Korteweg equations, which couple flow dynamics with van der Waals' nonequilibrium thermodynamic theory of phase transformations, and opens an opportunity for first-principles simulation of a wide range of boiling and cavitating flows. The proposed algorithm enables unprecedented simulations of the Nav ...[more]

PMID: 36930713

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