Results 21 to 30 of about 270,343 (348)
Heat transfer and ablation of carbon/carbon composites based on multi-field coupling
工程科学学报, 2020 With the development of hypersonic technology, the demand for thermal protection material is continuously increasing. Carbon/carbon composites are widely used as thermal protection materials in the nose and in the leading edge of hypersonic vehicles ...
Xue-wen SUN, Hai-bo YANG, Tao MI
doaj +1 more source
Energies, 2021 Stagnation is the transient state of a solar thermal system under high solar irradiation where the useful solar gain is zero. Both flat-plate collectors with selective absorber coatings and vacuum-tube collectors exhibit stagnation temperatures far above
Ralph Eismann +2 more
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Evaluation of the absorber temperature frequency function valid for evacuated flat plate collectors
Energy Reports, 2022 The degradation of performances for solar thermal collectors is linked to the decrease of the absorber efficiency caused by diffusion process, strongly dependent on temperature.
Eliana Gaudino +5 more
doaj
Experimental Study on Critical Flow of Supercritical CO2 at Steady State and Model Verification
Yuanzineng kexue jishu, 2022 When the loss of coolant accident happens in a reactor, because of the high temperature and high pressure in the reactor and the low external pressure, the critical flow may occur at the break due to sharp depressurization and vaporization.
LI Weiqing;ZHANG Dongxu;ZHAO Minfu
doaj
One-dimensional radiation-hydrodynamic scaling studies of imploding spherical plasma liners [PDF]
Physics of Plasmas 18, 072705 (2011), 2011 One-dimensional radiation-hydrodynamic simulations are performed to develop insight into the scaling of stagnation pressure with initial conditions of an imploding spherical plasma shell or "liner." Simulations reveal the evolution of high-Mach-number (M), annular, spherical plasma flows during convergence, stagnation, shock formation, and disassembly,
arxiv +1 more source
Journal of Applied Polymer Science, Volume 140, Issue 4, January 20, 2023., 2023 In this paper, the cross‐linking reaction during the processing of liquid silicone rubber in the injection molding process is illustrated by measuring the cavity pressure. This shows a characteristic curve when derived twice. This curve is attributable to cross‐linking. With this knowledge, processes can be optimized and costs saved.
Dennis F. Weißer +3 more
wiley +1 more source
Drag Control by Hydrogen Injection in Shocked Stagnation Zone of Blunt Nose [PDF]
IOP Conf. Ser.: Mater. Sci. Eng. 1024 (2021) 012110, 2020 The main motivation of the current study is to propose a high-pressure hydrogen injection as an hybrid active flow control technique in order to manipulate the flow-field in front of a blunt nose during hypersonic flight. Hydrogen injection can lead to self-igition under the right environment conditions in a stagnation zone, and may cause thermal heat ...
arxiv +1 more source
Deduction of temperature fluctuations in transient compression wind tunnels using incompressible turbulent flow data [PDF]
, 2009 Wind tunnels and other aero-thermal experimental facilities are likely to make a contribution to the optimisation of energy and propulsion systems for the foreseeable future.
Buttsworth, D. R., Widodo, A.
core +1 more source
The inflow in the Baltic Proper as recorded in January–February 2015
Oceanologia, 2016 Inflowing saline waters of the Major Baltic Inflow (MBI) in 2014 were recorded in the Baltic Proper in January 2015. After 12 years of stagnation, this inflow brought highly saline (about 20) waters into the Bornholm Basin.
Daniel Rak
doaj +1 more source
Challenges in Elucidating the Free Energy Scheme of the Laccase Catalyzed Reduction of Oxygen
ChemCatChem, Volume 15, Issue 1, January 9, 2023., 2023 Bioinorganic chemistry: High potential variants of the multicopper enzyme laccase have a remarkably low overpotential for the oxygen reduction reaction (ORR). Understanding the precise underlying principles are potentially of great value in light of the energy transition wherein the ORR plays a crucial role.
Daan den Boer +3 more
wiley +1 more source