Results 61 to 70 of about 1,892,200 (345)

Evidence for Bolgiano-Obukhov scaling in rotating stratified turbulence using high-resolution direct numerical simulations [PDF]

open access: yes, 2014
We report results on rotating stratified turbulence in the absence of forcing and with large-scale isotropic initial conditions using direct numerical simulations computed on grids of up to 40963 points. The Reynolds and Froude numbers are, respectively,
D. Rosenberg   +4 more
semanticscholar   +1 more source

Theory of Magnetodynamics Induced by Spin Torque in Perpendicularly Magnetized Thin Films [PDF]

open access: yes, 2005
A nonlinear model of spin wave excitation using a point contact in a thin ferromagnetic film is introduced. Large-amplitude magnetic solitary waves are computed, which help explain recent spin-torque experiments.
B. Ilan   +6 more
core   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Damage behavior of the KKV direct hit against fluid-filled submunition payload

open access: yesDefence Technology, 2022
The damage effects of fluid-filled submunition payload impacted by the kinetic kill vehicle (KKV) are investigated by simulations and ground-based experiments.
Yang Zan   +3 more
doaj   +1 more source

Effects of the computational domain size on direct numerical simulations of Taylor-Couette turbulence with stationary outer cylinder [PDF]

open access: yes, 2014
In search for the cheapest but still reliable numerical simulation, a systematic study on the effect of the computational domain (“box”) size on direct numerical simulations of Taylor-Couette flow was performed.
Rodolfo Ostilla M'onico   +2 more
semanticscholar   +1 more source

Continuous Growth of Droplet Size Variance due to Condensation in Turbulent Clouds [PDF]

open access: yes, 2015
We use a stochastic model and direct numerical simulation to study the impact of turbulence on cloud droplet growth by condensation. We show that the variance of the droplet size distribution increases in time as t^{1/2}, with growth rate proportional to
Brandt, Luca   +3 more
core   +2 more sources

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

open access: yesFEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Direct simulation of liquid-gas-solid flow with a free surface lattice Boltzmann method [PDF]

open access: yes, 2017
Direct numerical simulation of liquid-gas-solid flows is uncommon due to the considerable computational cost. As the grid spacing is determined by the smallest involved length scale, large grid sizes become necessary -- in particular if the bubble ...
Bogner, Simon   +2 more
core   +7 more sources

The Response of Turbulent Channel Flow to Standing Wave-Like Wall Motion

open access: yesFluids
The effect of wall deformations on wall turbulence is a topic of fundamental importance for the advancement of flow control strategies aimed at reducing the frictional drag.
Matthew Brockhaus   +2 more
doaj   +1 more source

Response maxima in time-modulated turbulence: Direct Numerical Simulations [PDF]

open access: yes, 2005
The response of turbulent flow to time-modulated forcing is studied by direct numerical simulations of the Navier-Stokes equations. The large-scale forcing is modulated via periodic energy input variations at frequency $\omega$.
A. K Kuczaj   +4 more
core   +6 more sources

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