Direct numerical simulation of supercritical annular electroconvection [PDF]
Physical Review E, 2007 We use direct numerical simulation to study electrically driven convection in an annular thin film. The simulation models a laboratory experiment that consists of a weakly conducting, submicron thick liquid crystal film suspended between two concentric electrodes. The film is driven to convect by imposing a sufficiently large voltage across it.
Tsai, Peichun Amy +3 more
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A Direct Numerical Simulation-Based Analysis of Entropy Generation in Turbulent Premixed Flames
Entropy, 2013 A compressible single step chemistry Direct Numerical Simulation (DNS) database of freely propagating premixed flames has been used to analyze different entropy generation mechanisms.
Richard Farran, Nilanjan Chakraborty
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Direct numerical simulation of turbulent Taylor–Couette flow [PDF]
European Journal of Mechanics - B/Fluids, 2008 To appear in European Journal of Mechanics B ...
PIRRO', DAVIDE, QUADRIO, MAURIZIO
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Direct numerical simulation of a hypersonic transitional boundary layer at suborbital enthalpies
Journal of Fluid Mechanics, 2021 A Mach-10 hypersonic boundary layer of air overriding a cold, isothermal, non-catalytic flat wall, and with a stagnation enthalpy of $21.6\ \textrm {MJ}\ \textrm {kg}^{-1}$, is analysed using direct numerical simulations.
M. Di Renzo, J. Urzay
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Feedback Control for Transition Suppression in Direct Numerical Simulations of Channel Flow
Energies, 2019 For channel flow at subcritical Reynolds numbers ( R e < 5772 ), a laminar-to-turbulent transition can emerge due to a large transient amplification in the kinetic energy of small perturbations, resulting in an increase in drag at the walls. The
Yiyang Sun, Maziar S. Hemati
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Grid-point and time-step requirements for direct numerical simulation and large-eddy simulation [PDF]
The Physics of Fluids, 2020 We revisit the grid-point requirement estimates in Choi and Moin [“Grid-point requirements for large eddy simulation: Chapman’s estimates revisited,” Phys.
Xiang I. A. Yang, K. Griffin
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Direct numerical simulations of helical dynamo action: MHD and beyond [PDF]
Nonlinear Processes in Geophysics, 2004 Magnetohydrodynamic dynamo action is often invoked to explain the existence of magnetic fields in several astronomical objects. In this work, we present direct numerical simulations of MHD helical dynamos, to study the exponential growth and saturation ...
D. O. Gómez +2 more
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Effect of the Density Ratio on Emulsions and Their Segregation: A Direct Numerical Simulation Study
Energies, 2023 Using direct numerical simulation (DNS) in combination with the volume of fluid method (VoF), we investigate the influence of the density ratio between the carrier and dispersed phase on emulsions, where the baseline simulation approximately corresponds ...
Oscar Krzeczek +3 more
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Direct numerical simulations of an inertial wave attractor in linear and nonlinear regimes [PDF]
Journal of Fluid Mechanics, 2014 In a uniformly rotating fluid, inertial waves propagate along rays that are inclined to the rotation axis by an angle that depends on the wave frequency.
L. Jouve, G. Ogilvie
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Effects of anticyclonic spanwise rotation on plane Couette flow at small Reynolds number
Journal of Fluid Science and Technology, 2022 In this study, we investigated the effect of anticyclonic spanwise rotation on the plane Couette flow at the small Reynolds number Rew = 1300, defined by the moving wall velocity, channel half-width, and kinematic viscosity by direct numerical ...
Oaki IIDA, Kazuki KAMIYA, Tomohiro KANDA
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