Results 11 to 20 of about 768,251 (362)
Ratcheting Heat Flux against a Thermal Bias [PDF]
EPL 84 (2008) 40009, 2008 Merely rocking the temperature in one heat bath can direct a steady heat flux from cold to hot against a non-zero thermal bias in stylized nonlinear lattice junctions that are sandwiched between two heat baths. Likewise, for an average zero-temperature difference between the two contacts a net, ratchet-like heat flux emerges.
B. Li +9 more
arxiv +3 more sources
Inflation driven by causal heat flux [PDF]
Gen.Rel.Grav. 31 (1999) 815-819, 1997 We find a simple inflationary solution in an inhomogeneous spacetime with heat flux. The heat flux obeys a causal transport equation, and counteracts the inflationary decrease of energy density. At late times, the heat flux tends to zero and the fluid approaches the equation of state $p=-\rho$.
D. Pavòn +8 more
arxiv +4 more sources
Local rectification of heat flux [PDF]
EPL (Europhysics Letters), 2017 We present a chain-of-atoms model where heat is rectified, with different fluxes from the hot to the cold baths located at the chain boundaries when the temperature bias is reversed. The chain is homogeneous except for boundary effects and a local modification of the interactions at one site, the "impurity".
Andreas Ruschhaupt +4 more
openaire +4 more sources
Modeling of Heat Flux in a Heating Furnace
Computation, 2023 Modern heating furnaces use combined modes of heating the charge. At high heating temperatures, more radiation heating is used; at lower temperatures, more convection heating is used. In large heating furnaces, such as pusher furnaces, it is necessary to monitor the heating of the material zonally. Zonal heating allows the appropriate thermal regime to
Augustín Varga +5 more
openaire +2 more sources
Heat rectification, heat fluxes, and spectral matching
Physical Review E, 2023 9 pages, 9 ...
Javier Navarro +2 more
openaire +3 more sources
How large are present-day heat flux variations across the surface of Mars? [PDF]
, 2016 ©2016. American Geophysical UnionThe first in situ Martian heat flux measurement to be carried out by the InSight Discovery‐class mission will provide an important baseline to constrain the present‐day heat budget of the planet and, in turn, the ...
Breuer, M. +5 more
core +1 more source
Solar Energy, 2010 Abstract The solarimeter presented in this work is easy to assemble. It is calibrated and its performance is validated by means of Hottel’s method ( Hottel, 1976 ). Finally, the curves obtained with this solarimeter are compared to the ones obtained with a commercial solarimeter. This device is based on the evaluation of the heat flow in a metal rod.
Sartarelli, Salvador Andrés +4 more
openaire +3 more sources
Research On Maximizing Critical And Reducing Initial Heat Flux Densities To Eliminate Any Film Boiling And Minimize Distortion During Quenching [PDF]
, 2017 In the paper the results of testing three types of FUCHS oils: Thermisol QH 120, Thermisol QH 10 and Thermisol QB 46 are discussed. The main attention is paid to critical heat flux densities evaluation because they create a basis for optimizing cooling ...
Dobryvechir, V. (Volodymyr) +3 more
core +2 more sources
Construction of Machine-Learning Interatomic Potential Under Heat Flux Regularization and Its Application to Power Spectrum Analysis for Silver Chalcogenides [PDF]
Comput. Phys. Commun., 294, 19258 (2024), 2022 We propose a data-driven approach for constructing machine-learning interatomic potentials (MLIPs) trained under a regularization with the aim of avoiding nonphysical heat flux. Specifically, we introduce a regularization term for the heat flux into the cost function of MLIPs to be minimized.
arxiv +1 more source
Response of ocean climate to different heat-flux perturbations over the North Atlantic in FAFMIP
Advances in Climate Change Research, 2023 The diversity of surface-flux perturbations, especially for heat-flux perturbations, notably leads to uncertainties surrounding the responses of ocean climate under global warming scenarios projected by climate/Earth system models. However, when imposing
Wen-Yu Yin +4 more
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