scholarly journals High-order two-fluid plasma solver for direct numerical simulations of plasma flows with full transport phenomena

2019 ◽  
Vol 26 (1) ◽  
pp. 012109 ◽  
Author(s):  
Z. Li ◽  
D. Livescu
Keyword(s):  
Numerical Simulations ◽  
Transport Phenomena ◽  
High Order ◽  
Direct Numerical Simulations ◽  
Plasma Flows ◽  
Two Fluid ◽  
Two Fluid Plasma

Direct Numerical Simulations of Nucleate Boiling

2008 ◽  
Author(s):  
Gretar Tryggvason ◽  
Siju Thomas ◽  
Jiacai Lu
Keyword(s):  
Numerical Simulations ◽  
Time Scales ◽  
Nucleate Boiling ◽  
Unsteady Motion ◽  
Direct Numerical Simulations ◽  
Disperse Flow ◽  
Fluid Mixture ◽  
Fluid Systems ◽  
Two Fluid ◽  
New Algorithms

Direct Numerical Simulations (DNS) of multiphase flows, where all continuum length and time scales are fully resolved have progressed enormously in the last few years. Increases in computer power and new algorithms now make it possible to follow the unsteady motion of several hundred particles (drops, bubbles and solids) for long enough times so that meaningful averages for the fluid mixture can be calculated. However, most progress has so far been made for disperse flow of two-fluid systems. See Prosperetti and Tryggvason (2007) for a review.

scholarly journals Validation Strategy of Reduced-Order Two-Fluid Flow Models Based on a Hierarchy of Direct Numerical Simulations

2020 ◽  
Vol 105 (4) ◽  
pp. 1381-1411
Author(s):  
Pierre Cordesse ◽  
Alberto Remigi ◽  
Benjamin Duret ◽  
Angelo Murrone ◽  
Thibaut Ménard ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Numerical Simulations ◽  
Direct Numerical Simulations ◽  
Reduced Order ◽  
Flow Models ◽  
Two Fluid ◽  
Validation Strategy

scholarly journals Gas-Solid Heat Transfer Computation from Particle-Resolved Direct Numerical Simulations

Fluids ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 15
Author(s):  
Mohamed-Amine Chadil ◽  
Stéphane Vincent ◽  
Jean-Luc Estivalèzes
Keyword(s):  
Heat Transfer ◽  
Numerical Simulations ◽  
Penalty Method ◽  
Accurate Estimate ◽  
Second Order ◽  
High Order ◽  
Direct Numerical Simulations ◽  
Transfer Coefficients ◽  
Carrier Fluid ◽  
Heat Transfer Coefficients

Particle-Resolved simulations (PR-DNS) have been conducted using a second order implicit Viscous Penalty Method (VPM) to study the heat transfer between a set of particles and an incompressible carrier fluid. A Lagrange extrapolation coupled to a Taylor interpolation of a high order is utilized to the accurate estimate of heat transfer coefficients on an isolated sphere, a fixed Faced-Centered Cubic array of spheres, and a random pack of spheres. The simulated heat transfer coefficients are compared with success to various existing Nusselt laws of the literature.

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