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Direct Numerical Simulation of Surface Wrinkling for Extraction of Thin Metal Film Material Properties [PDF]

Micromachines, 2023
This paper presents a direct numerical simulation for the extraction of material properties based on thin-film wrinkling on scotch tape. Conventional FEM-based buckling simulation sometimes requires complex modeling techniques concerning mesh element ...
Seonho Seok, HyungDal Park, Philippe Coste, Jinseok Kim   +3 more
doaj   +2 more sources

Direct Numerical Simulation of Seawater Desalination Based on Ion Concentration Polarization [PDF]

Micromachines, 2019
The problem of water shortage needs to be solved urgently. The membrane-embedded microchannel structure based on the ion concentration polarization (ICP) desalination effect is a potential portable desalination device with low energy consumption and high
Jie Li, Dilin Chen, Jian Ye, Lai Zhang, Teng Zhou, Yi Zhou   +5 more
doaj   +2 more sources

Direct numerical simulation of the turbulent flow around a Flettner rotor [PDF]

Scientific Reports
The three-dimensional turbulent flow around a Flettner rotor, i.e. an engine-driven rotating cylinder in an atmospheric boundary layer, is studied via direct numerical simulations (DNS) for three different rotation speeds ( $$\alpha$$ α ).
Daniele Massaro, Martin Karp, Niclas Jansson, Stefano Markidis, Philipp Schlatter   +4 more
doaj   +2 more sources

Primary atomization of shear-thinning liquid jets: a direct numerical simulation study [PDF]

Scientific Reports
Using direct numerical simulation, the primary atomization of shear-thinning liquid jets into stagnant gas is investigated. Starting from a Newtonian configuration with material properties approximately corresponding to a Diesel injection, two ...
Marianne Abdelsayed, Elias Trautner, Jakob Berchtenbreiter, Markus Klein   +3 more
doaj   +2 more sources

Direct numerical simulation of compressible turbulence accelerated by graphics processing unit: An open-access database of high-resolution direct numerical simulation

AIP Advances, 2022
In the author’s previous work, we introduced an open-source accelerated computational fluid dynamics code for scientific computations using a graphics processing unit system (OpenCFD-SCU). This code offers significantly improved computation speed and can
Guanlin Dang, Shiwei Liu, Tongbiao Guo, Junyi Duan, Xinliang Li   +4 more
doaj   +1 more source

Mixed-phase direct numerical simulation: ice growth in cloud-top generating cells [PDF]

Atmospheric Chemistry and Physics, 2023
In this study, a state-of-the-art microphysical model using a Lagrangian-particle-based direct numerical simulation framework is presented to examine the growth of ice particles in turbulent mixed-phase clouds.
S. Chen, L. Xue, S. Tessendorf, K. Ikeda, C. Weeks, R. Rasmussen, M. Kunkel, D. Blestrud, S. Parkinson, M. Meadows, N. Dawson   +10 more
doaj   +1 more source

Absolute Permeability Calculation by Direct Numerical Simulation in Porous Media [PDF]

Journal of Chemical and Petroleum Engineering, 2019
Simulating fluid flow at micro level is an ongoing problem. Simplified macroscopic flow models like Darcy’s law is unable to estimate fluid dynamic properties of porous media. The digital sample reconstruction by high resolution X-ray computed tomography
Mohammad Reza Rasaei, Fahime Firoozpour
doaj   +2 more sources

Effect of Schmidt Number on Forced Isotropic Turbulence with Passive Scalars

Fluids, 2023
Traditionally, Fourier spectra have been employed to gain a deeper understanding of turbulence flow structures. The investigation of isotropic forced turbulence with passive scalars offers a straightforward means to examine the disparities between ...
Paolo Orlandi, Sergio Pirozzoli
doaj   +1 more source

Direct numerical simulation of turbulent mixing [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2013
The results of three-dimensional numerical simulations of turbulent flows obtained by various authors are reviewed. The paper considers the turbulent mixing (TM) process caused by the development of the main types of instabilities: those due to gravitation (with either a fixed or an alternating-sign acceleration), shift and shock waves.
V P, Statsenko, Yu V, Yanilkin, V A, Zhmaylo   +2 more
openaire   +2 more sources

Direct Numerical Simulations of Capillary Wave Turbulence [PDF]

Physical Review Letters, 2014
This work presents Direct Numerical Simulations of capillary wave turbulence solving the full 3D Navier Stokes equations of a two-phase flow. When the interface is locally forced at large scales, a statistical stationary state appears after few forcing periods. Smaller wave scales are generated by nonlinear interactions, and the wave height spectrum is
Deike, Luc, Fuster, Daniel, Berhanu, Michaël, Falcon, Eric   +3 more
openaire   +4 more sources