Results 31 to 40 of about 8,659,134 (281)
Numerical Analysis of Knudsen Number of Helium Flow Through Gas-Focused Liquid Sheet Micro-Nozzle
FluidsThis work aims to verify whether the continuum mechanics assumption holds for the numerical simulation of a typical sample delivery system in serial femtosecond crystallography (SFX).
Krištof Kovačič +2 more
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Hydrodynamics from free-streaming to thermalization and back again
Physics Letters B, 2020 We study the evolution of the Knudsen and Reynolds numbers in (0+1)-dimensionally expanding fluids with Bjorken symmetry for systems whose microscopic mean free path rises more quickly with time than usually assumed.
Chandrodoy Chattopadhyay, Ulrich Heinz
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Comparing macroscopic continuum models for rarefied gas dynamics : a new test method [PDF]
, 2006 We propose a new test method for investigating which macroscopic continuum models, among the many existing models, give the best description of rarefied gas flows over a range of Knudsen numbers.
Zheng, Yingsong +2 more
core +4 more sources
A topology optimization method for rarefied gas flows
Nihon Kikai Gakkai ronbunshu, 2017 We construct a topology optimization method for two dimensional rarefied gas flow problems, based on level-set boundary expressions. The degree of rarefaction is expressed by the Knudsen number, which is the ratio of the mean free path and the ...
Ayami SATO +4 more
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Advanced Engineering Materials, EarlyView.A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič +7 more
wiley +1 more source
High‐Speed Photoresponse of CVD‐Grown Lateral TMD Heterostructures
Advanced Functional Materials, EarlyView.Internal electric fields generated by p‐n junctions and asymmetric Schottky barriers enhance the photoresponse speed in CVD‐grown monolayer TMD lateral heterostructures. This results in a 1.5‐2 orders of magnitude reduction in rise and fall times for optimized device configurations compared to homogeneous single‐material devices, enabling bandwidths ...
Mario Martin +9 more
wiley +1 more source
Heat Transfer Enhancement for Rarefied Flow Within a Microchannel Featuring Obstructions
Revue des Énergies RenouvelablesThe present study investigates forced convection heat transfer of rarefied flow within a microchannel containing obstacles using the thermal lattice Boltzmann method using a double distribution function model and BGK approximation.
Siham Hammid +3 more
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Exchange‐Coupled Two‐Dimensional MOFs
Advanced Functional Materials, EarlyView.Graphene mediates ferromagnetic coupling between two‐dimensional metal‐organic frameworks and cobalt. Fe‐tetracyanobenzene develops a remanent magnetic response whose orientation follows the cobalt magnetization direction and persists up to room temperature, whereas Ni‐TCNB remains only field‐polarized.
Iulia Cojocariu +5 more
wiley +1 more source
DSMC Simulation and Experimental Validation of Shock Interaction in Hypersonic Low Density Flow
The Scientific World Journal, 2014 Direct simulation Monte Carlo (DSMC) of shock interaction in hypersonic low density flow is developed. Three collision molecular models, including hard sphere (HS), variable hard sphere (VHS), and variable soft sphere (VSS), are employed in the DSMC ...
Hong Xiao, Yuhe Shang, Di Wu
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Analytical solution of pressure driven gas flow and heat transfer in micro-Couette using the Burnett equations [PDF]
Journal of Heat and Mass Transfer Research, 2018 In the current work, an incompressible thermal flow in a micro-Couette in the presence of a pressure gradient is investigated utilizing the analytical solution of the Burnett equations with first-order and second-order slip boundary conditions, for the ...
AhmadReza Rahmati, F. Najati
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