Results 31 to 40 of about 312,386 (294)

Black Hole Tunneling Entropy and the Spectrum of Gravity [PDF]

, 1992
The tunneling approach for entropy generation in quantum gravity is applied to black holes. The area entropy is recovered and shown to count only a tiny fraction of the black hole degeneracy.
Casher, A., Englert, F.
core   +3 more sources

Generation of entropy and forced convection of heat in a conduit partially filled with porous media- Local thermal non-equilibrium and exothermicity effects applied thermal engineering [PDF]

, 2016
The performance of a two-dimensional, axisymmetric channel with porous inserts attached to the walls is analyzed from the perspective of the first and second laws of thermodynamics.
Karimi, Nader, Peterson, G.P., Torabi, Mohsen, Zhang, Kaili   +3 more
core   +1 more source

A review of entropy generation in microchannels

Advances in Mechanical Engineering, 2015
In this study, a critical review of thermodynamic optimum of microchannels based on entropy generation analysis is presented. Using entropy generation analysis as evaluation parameter of microchannels has been reported by many studies in the literature ...
Mohamed M Awad
doaj   +1 more source

Strong experimental guarantees in ultrafast quantum random number generation [PDF]

, 2015
We describe a methodology and standard of proof for experimental claims of quantum random number generation (QRNG), analogous to well-established methods from precision measurement.
Abellan, Carlos, Amaya, Waldimar, Mitchell, Morgan W.   +2 more
core   +3 more sources

Progress in the Prediction of Entropy Generation in Turbulent Reacting Flows Using Large Eddy Simulation

Entropy, 2014
An overview is presented of the recent developments in the application of large eddy simulation (LES) for prediction and analysis of local entropy generation in turbulent reacting flows.
Mehdi Safari, Fatemeh Hadi, M. Reza H. Sheikhi   +2 more
doaj   +1 more source

Generalized Entropy Generation Expressions in Gases

Entropy, 2019
In this study, we generalize our previous methods for obtaining entropy generation in gases without the need to carry through a specific expansion method, such as the Chapman–Enskog method.
Michael H. Peters
doaj   +1 more source

Entropy generation analysis and simulation of turbulent forced convection around tube with integral wake splitter using artificial neural network approach

Alexandria Engineering Journal, 2023
This paper deals with the investigations on entropy generation around a circular plain tube with integral downstream splitter plates with cross flow of air in a rectangular duct.
Moustafa A. El Bouz, Aly M.A. Ibrahim, Mohamed M. Abdelsalam, Emad M.S. El-Said   +3 more
doaj   +1 more source

Entropy generation analysis for the design improvement of a latent heat storage system [PDF]

, 2013
The aim of this work is to investigate design improvements of a shell-and-tube latent heat thermal energy storage unit using an approach based on the analysis of entropy generation.
Adriano Sciacovelli, Agyenim, Agyenim, Bejan, Bejan, Cabeza, Chiu, Choi, David MacPhee, De Groot, Elisa Guelpa, Erek, Erek, Ezan, Hirschfelder, Ismail, Ismail, Jegadheeswaran, Jegadheeswarana, Kaizawa, Kousksou, Lacroix, Mesalhy, Sari, Sciacovelli, Vittorio Verda, Voller, Zalba   +27 more
core   +1 more source

Entropy generation for natural convection by heated partitions in a cavity [PDF]

, 2008
Entropy generation for natural convection in a partitioned cavity, with adiabatic horizontal and isothermally cooled vertical walls, is studied numerically by both a FORTRAN code and the commercially available CFD-ACE software.
Famouri, M., Hooman, K.
core   +1 more source

Second Law Analysis of Dissipative Flow over a Riga Plate with Non-Linear Rosseland Thermal Radiation and Variable Transport Properties

Entropy, 2018
In this article, we investigated entropy generation and heat transfer analysis in a viscous flow induced by a horizontally moving Riga plate in the presence of strong suction.
Muhammad Idrees Afridi, Muhammad Qasim, Abid Hussanan   +2 more
doaj   +1 more source