Results 21 to 30 of about 21,100,216 (254)
Modeling of Knudsen layer effects in micro/nanoscale gas flows [PDF]
, 2011 We propose a power-law based effective mean free path (MFP) model so that the Navier-Stokes-Fourier equations can be employed for the transition-regime flows typical of gas micro/nanodevices.
Dongari, Nishanth +2 more
core +3 more sources
Известия Томского политехнического университета: Инжиниринг георесурсов, 2021 The relevance of the article is caused by the need to develop new mathematical models, methods, experimental approaches when investigating migration problems of deep hydrocarbon fluids from underground reservoirs of the oil and gas basin.
Igor A. Melnik, Sergey N. Kharlamov
doaj +1 more source
Algorithmic graph theory for post-processing molecular dynamics trajectories [PDF]
, 2022 This paper reviews some of the graph theory-based methods that were recently developed in our group for post-processing molecular dynamics trajectories. We show that the use of algorithmic graph theory not only provides a direct and fast methodology to
Ylene, Aboulfath +3 more
core +1 more source
GMAW shielding gas flow optimisation by refinement of nozzle geometry [PDF]
, 2013 With an ongoing demand to improve the efficiency of the gas metal arc welding process, steps are being taken to reduce the shielding gas consumption. However, sufficient shielding gas coverage of the weld region is essential for the generation of high ...
S.W. Campbell +5 more
core +4 more sources
Capturing the Knudsen layer in continuum-fluid models of non-equilibrium gas flows [PDF]
, 2005 In hypersonic aerodynamics and microflow device design, the momentum and energy fluxes to solid surfaces are often of critical importance. However, these depend on the characteristics of the Knudsen layer - the region of local non-equilibrium existing up
Reese, Jason M. +2 more
core +3 more sources
A geometric viewpoint on generalized hydrodynamics
Nuclear Physics B, 2018 Generalized hydrodynamics (GHD) is a large-scale theory for the dynamics of many-body integrable systems. It consists of an infinite set of conservation laws for quasi-particles traveling with effective (“dressed”) velocities that depend on the local ...
Benjamin Doyon +2 more
doaj +1 more source
AtmosphereIn this review paper, the equations of motion describing the fluid dynamics of the ionosphere are constructed step by step, so that any master or post-graduate student may get familiar with the general theory of the “traditional” approach to Ionospheric ...
Massimo Materassi
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Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
The importance of mean free path in determining gas flow behaviour [PDF]
, 2010 We investigate whether a power-law form of probability distribution function better describes the free paths of dilute gas molecules in a confined system.
Dongari, Nishanth +5 more
core +4 more sources
Probing eigenstate thermalization in quantum simulators via fluctuation-dissipation relations
Physical Review Research, 2020 The eigenstate thermalization hypothesis (ETH) offers a universal mechanism for the approach to equilibrium of closed quantum many-body systems. So far, however, experimental studies have focused on the relaxation dynamics of observables as described by ...
Alexander Schuckert, Michael Knap
doaj +1 more source