Partial entropy production in heat transport
نویسندگان
چکیده
منابع مشابه
Titan , Mars and Earth : Entropy Production by Latitudinal Heat Transport
Temperature contrasts between warm tropics and cool high latitudes depends on how efficiently heat is transported by the atmosphere (and oceans) from the tropics. This heat transport is generally assumed to be proportional to atmospheric pressure, but we show with a simple model that this prediction fails by orders of magnitude for Mars and Titan. However, a basic principle, previously postulat...
متن کاملRadiative entropy production-cost heat into entropy
Heat flow SQ of the First Law of Thermodynamics is expressed in terms of the entropy flow &Q/T) SQ = SIT(QIT)I = ~~(Q/~+(Q~~d~ where T&Q/T) denotes the energy equivalent of the entropy flow, and (Q/T)dT introduces the concept of lost heat into entropy production. Here Q = QK f Q R where superscripts K and R indicate conduction and radiation, respectively. In terms of the lost heat, dimensionles...
متن کامل“Maximum” entropy production in self-organized plasma boundary layer: A thermodynamic discussion about turbulent heat transport
A thermodynamic model of a plasma boundary layer, characterized by enhanced temperature contrasts and “maximum entropy production,” is proposed. The system shows bifurcation if the heat flux entering through the inner boundary exceeds a critical value. The state with a larger temperature contrast !larger entropy production" sustains a self-organized flow. An inverse cascade of energy is propose...
متن کاملEntropy Production in the Theory of Heat Conduction in Solids
Abstract: The evolution of the entropy production in solids due to heat transfer is usually associated with the Prigogine’s minimum entropy production principle. In this paper, we propose a critical review of the results of Prigogine and some comments on the succeeding literature. We suggest a characterization of the evolution of the entropy production of the system through the generalized Four...
متن کاملPartial moment entropy approximation to radiative heat transfer
We extend the half moment entropy closure for the radiative heat transfer equations presented in [J. Comput. Phys. 180 (2002) 584] and [J. Comput. Phys. 198 (2004) 363] to multi-D. To that end we consider a partial moment system with general partitions of the unit sphere closed by an entropy minimization principle. We give physical and mathematical reasons for this choice of model and study its...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Statistical Mechanics: Theory and Experiment
سال: 2018
ISSN: 1742-5468
DOI: 10.1088/1742-5468/aabfca