Evidence for second-order oscillations at the Best frequency in direct numerical simulations of the Vlasov equation

1999 ◽  
Vol 6 (12) ◽  
pp. 4559-4564 ◽  
Author(s):  
L. Nocera ◽  
A. Mangeney
Keyword(s):  
Numerical Simulations ◽  
Vlasov Equation ◽  
Second Order ◽  
Direct Numerical Simulations

Second-order velocity structure functions in direct numerical simulations of turbulence with Rλ up to 2250

2020 ◽  
Vol 5 (10) ◽  
Author(s):  
Takashi Ishihara ◽  
Yukio Kaneda ◽  
Koji Morishita ◽  
Mitsuo Yokokawa ◽  
Atsuya Uno
Keyword(s):  
Numerical Simulations ◽  
Velocity Structure ◽  
Structure Functions ◽  
Second Order ◽  
Direct Numerical Simulations

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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