Work

A Diffuse Interface Model for Cavitation, Taking Into Account Capillary Forces

Year: 2024

Type: article

Abstract: ABSTRACT We consider the moving least squares method to solve compressible two‐phase water‐water vapor flow with surface tension. A diffuse interface model based on the Navier–Stokes and Korteweg equations is coupled with a suitable system of state equations that allows for a more realistic estimation of the pressure jump across the liquid–vapor interface as a function of temperature. We propose a simple formulation for computing the capillarity coefficient based on the surface tension and the thickness of the diffuse interface. A convergence analysis using pressure jump in the test case of static bubble is conducted to verify our solver. We present several numerical test cases that illustrate the ability of our model to reproduce qualitatively and quantitatively the effects of surface tension on cavitation bubbles in general situations.

Source: International Journal for Numerical Methods in Fluids

DOI: 10.1002/fld.5350

Authors: Takfarines Ait‐Ali, Sofiane Khelladi, Farid Bakir, Noureddine Hannoun, Xesús Nogueira, Luis Ramírez

Institutions: Polytechnic School of Algiers, Conservatoire National des Arts et Métiers, Arts et Métiers, Laboratoire Ingénierie des Fluides Systèmes Énergétiques, University of Sciences and Technology Houari Boumediene, Universidade da Coruña

Language: English

Topic: Fluid Dynamics and Heat Transfer

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4404546037

FWCI:

Cites: 37

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Related to: 10