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A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
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A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

Published on: June 1, 2022

GENERIC model for multiphase systems.

Leonard M C Sagis1

  • 1Physics Group, Department ATV, Wageningen University, Bomenweg 2, 6703 HD Wageningen, The Netherlands. leonard.sagis@wur.nl

Advances in Colloid and Interface Science
|January 26, 2010
PubMed
Summary
This summary is machine-generated.

The GENERIC formalism models complex system dynamics using Poisson and dissipative brackets. This study extends it to multiphase systems, enabling detailed modeling of interfacial behavior and transport phenomena.

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A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
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Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
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Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

Area of Science:

  • Thermodynamics
  • Non-equilibrium systems
  • Complex fluid dynamics

Background:

  • The General Equation for Non-Equilibrium Reversible-Irreversible Coupling (GENERIC) formalism effectively models complex bulk phases.
  • Existing formalisms face challenges in describing dynamic behavior at interfaces within multiphase systems.

Purpose of the Study:

  • To generalize the GENERIC formalism for multicomponent multiphase systems with interfaces.
  • To model nonlinear dynamic behavior and viscous stress deformation at interfaces.
  • To derive conservation and constitutive equations for both bulk and interfacial phases.

Main Methods:

  • Reviewing the fundamental principles of the GENERIC formalism.
  • Extending the two-bracket formulation to include interfacial contributions.
  • Deriving conservation laws (mass, momentum, energy) for bulk phases.
  • Deriving jump balance equations for interfacial mass, momentum, and energy.
  • Obtaining constitutive equations for bulk and interfacial stress, flux vectors, and transport phenomena.

Main Results:

  • A generalized GENERIC formalism applicable to multiphase systems with interfaces.
  • Derived conservation and jump balance equations for bulk and interface.
  • Derived constitutive equations for bulk and interfacial extra stress tensors and flux vectors.
  • Established constitutive equations for interphase transport of mass, momentum, and energy.
  • Demonstrated good agreement with classical and rational thermodynamic formalisms.

Conclusions:

  • The generalized GENERIC formalism is a powerful tool for modeling complex interfacial dynamics in systems like emulsions and foams.
  • The derived equations provide a comprehensive framework for understanding transport phenomena at interfaces.
  • The formalism offers a unified approach, consistent with established thermodynamic theories.