Results 101 to 110 of about 1,805 (310)
Applied Sciences, 2019 In the present study, the performance of the moment method, in terms of accuracy and computational efficiency, was evaluated at both the macro- and microscopic levels.
Weiqi Yang, Shuo Tang, Hui Yang
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Rarefied dynamic pressure distribution measurement near a vacuum pump
Nihon Kikai Gakkai ronbunshu, 2020 In vacuum chambers, such as those at a ground test facility, pressure is higher and the gas resident time is longer than in space because such chambers are surrounded by walls and vacuum pumps.
Yoshinori NAKAYAMA
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Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application
Advanced Engineering Materials, EarlyView.N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang +4 more
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Hybrid continuum–molecular modelling of multiscale internal gas flows [PDF]
, 2013 We develop and apply an efficient multiscale method for simulating a large class of low-speed internal rarefied gas flows. The method is an extension of the hybrid atomistic–continuum approach proposed by Borg et al.
Reese, Jason M. +3 more
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Simulation of Rarefied Gas Flows in Microchannels
Procedia Engineering, 2017 Abstract In this work the rarefied gas flows in microchannels is investigated. With low pressure owing to low gas density the gas slippage affetcting the channel walls is observed. The task of sliding flow on initial segments of flat (two-dimensional) channel of uniform cross section is solved.
Eugene I. Kurkin +2 more
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Advanced Engineering Materials, EarlyView.Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati +11 more
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Analytical treatments of micro-channel and micro-capillary flows [PDF]
, 2011 This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Sambasivam, R +4 more
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Advanced Engineering Materials, EarlyView.This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari +4 more
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Some consequences of non-local-equilibrium in hypersonic aerodynamic flows [PDF]
, 2005 In simulating high-speed, high-altitude aerodynamics it is important to be able to capture physical phenomena that are due to the non-local-equilibrium nature of the rarefied gas flow (this is in addition to any effects due to dissociation, ionisation ...
Greenshields, Christopher, Reese, Jason
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Journal of Fluid Science and Technology, 2012 This paper discusses comparisons of first and second-order slip boundary conditions on the range of Knudsen numbers of some typical MEMS as O(10-3)<Kn<O(10-1) by numerical simulations using the continuum model based on the Navier-Stokes (N-S ...
Youichi OGATA, Koudai MATSUMOTO
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