Initiation and stagnation of room temperature grain coarsening in cyclically strained gold films [PDF]
Acta Materialia 169 (2019) 99-108, 2019 Despite the large number of experiments demonstrating that grains in a metallic material can grow at room temperature due to applied mechanical load, the mechanisms and the driving forces responsible for mechanically induced grain coarsening are still not understood.
Олександр Глушко +1 more
arxiv +5 more sources
Assessment of the Impact of Stagnation Temperatures in Receiver Prototypes of C-PVT Collectors [PDF]
Energies, 2019 Concentrating Photovoltaic Thermal (C-PVT) solar collectors produce both thermal and electric power from the same area while concentrating sunlight. This paper studies a C-PVT design where strings of series-connected solar cells are encapsulated with ...
João Gomes
doaj +4 more sources
Effect of the stagnation temperature on the normal shock wave [PDF]
Journal of Computational Methods in Sciences and Engineering, 2009 When the stagnation temperature increases, the specific heat does not remain constant and start to vary with this temperature. The gas is perfect; its state equation remains always valid, except, it was called by calorically imperfect gas or gas at high temperature.
Toufik Zebbiche
openaire +4 more sources
Poincaré index formula and analogy with the Kosterlitz-Thouless transition in a non-rotated cold atom Bose-Einstein condensate [PDF]
Journal of High Energy Physics, 2022 A dilute gas of Bose-Einstein condensed atoms in a non-rotated and axially symmetric harmonic trap is modelled by the time dependent Gross-Pitaevskii equation.
Julien Garaud, Antti J. Niemi
doaj +2 more sources
Rotation induced grain growth and stagnation in phase field crystal models [PDF]
Phys. Rev. E 88, 020401(R) (2013), 2013 We consider the grain growth and stagnation in polycrystalline microstructures. From the phase field crystal modelling of the coarsening dynamics, we identify a transition from a grain-growth stagnation upon deep quenching below the melting temperature $T_m$ to a continuous coarsening at shallower quenching near $T_m$.
Angheluta, Luiza +3 more
arxiv +3 more sources
Effect of Stagnation Temperature on the Supersonic Flow Parameters with Application for Air in Nozzles [PDF]
International Journal of Aeronautical and Space Sciences, 2006 When the stagnation temperature of a perfect gas increases, the specific heat for constant pressure and ratio of the specefic heats do not remain constant any more and start to vary with this temperature. The gas remains perfect: its state equation remains always valid, with exception that it will be named by calorically imperfect gas.
ZineEddine Youbi, Toufik Zebbiche
+8 more sources
Aerothermodynamic Analysis of a Reentry Brazilian Satellite [PDF]
, 2012 This work deals with a computational investigation on the small ballistic reentry Brazilian vehicle SARA (acronyms for SAt\'elite de Reentrada Atmosf\'erica). Hypersonic flows over the vehicle SARA at zero-degree angle of attack in a chemical equilibrium and thermal non-equilibrium are modeled by the Direct Simulation Monte Carlo (DSMC) method, which ...
AL Garcia +24 more
arxiv +3 more sources
Impact of Stagnation Temperature and Nozzle Configuration on Rarefied Jet Plume Interactions [PDF]
Journal of Spacecraft and Rockets, 2022 The canting axis of thrusters on space platforms, which likely operate in a vacuum environment with a high degree of flow rarefaction, is significant in order to create the desired torque for manoeuvring, maintaining orbit, eliminating perturbation forces, docking, etc.
Agir, Muhammed Burak +2 more
openaire +4 more sources
Effect of stagnation temperature on supersonic flow parameters application for air in nozzles [PDF]
The Aeronautical Journal, 2007 AbstractWhen the stagnation temperature of a perfect gas increases, the specific heats and their ratio do not remain constant and start to vary with the temperature. The gas remains perfect; its state
T. Zebbiche, Z. Youbi
openaire +5 more sources
Flat Plate Aluminum Heat Pipe Collector with Inherently Limited Stagnation Temperature
Energy Procedia, 2014 This paper presents a new flat plate collector technology based on heat pipes. The use of heat pipes can lead to several advantages over direct flow collectors: A simple hydraulic interconnection, an inherently limited stagnation temperature and substitution of copper.
Philipp Janßen +4 more
openaire +3 more sources