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  4. Consistent Thermo-Capillarity and Thermal Boundary Conditions for Single-Phase Smoothed Particle Hydrodynamics
 
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2021
Journal Article
Title

Consistent Thermo-Capillarity and Thermal Boundary Conditions for Single-Phase Smoothed Particle Hydrodynamics

Abstract
A model for capillary phenomena including temperature-dependency and thermal boundary conditions is presented in the numerical framework of smoothed particle hydrodynamics (SPH). The model requires only a single fluid phase and is therefore computationally more efficient than surface tension schemes which need an explicit fluid-fluid or fluid-gas interface. The model makes use of a surface identification mechanism based on the SPH renormalization tensor. All relevant properties of the continuum surface force (CSF) based approach, i.e., the delta function, normal vector and curvature, are calculated in a consistent manner. The model is parametrized by physical material properties and is successfully validated by means of a large set of analytical test cases. The applicability of the proposed model to more complex scenarios is demonstrated.
Author(s)
Bierwisch, C.
Fraunhofer-Institut für Werkstoffmechanik IWM  
Journal
Materials  
Funder
Deutsche Forschungsgemeinschaft DFG  
Open Access
DOI
10.3390/ma14164530
Language
English
Fraunhofer-Institut für Werkstoffmechanik IWM  
Keyword(s)
  • continuum surface force

  • contact angle

  • wetting

  • marangoni flow

  • heat transfer

  • Heat Flux

  • radiation

  • oalescence

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