Доступ предоставлен для: Guest
Главная ICHMT DL Текущий год Архив Исполнительный Комитет ICHMT

MODELING OF PHASE TRANSITION OF PARTIALLY MISCIBLE SOLVENT SYSTEMS: HYDRODYNAMICS AND HEAT TRANSFER PHENOMENA

DOI: 10.1615/ICHMT.2015.IntSympAdvComputHeatTransf.1080
pages 1166-1173

Vered Segal
School of Mechanical Engineering, Tel-Aviv University, Ramat Aviv 6139001, Israel

Amos Ullmann
School of Mechanical Engineering The Iby and Aladar Fleischman Faculty of Engineering Tel Aviv University Ramat Aviv 69978 ISRAEL

Neima Brauner
School of Mechanical Engineering The Iby and Aladar Fleischman Faculty of Engineering Tel Aviv University Ramat Aviv 69978 ISRAEL

Аннотация

A numerical model is developed to simulate the phase separation of binary Upper CST mixtures confined between two opposite cooled walls. The modeling is attempted to simulate the heat transfer enhancement obtained experimentally during phase separation of partially miscible solvent mixtures. With a critical composition, the initial homogeneous mixture undergoes spinodal decomposition, when the walls are cooled below the critical temperature. A new formulation is suggested for the typical length scale (a) of the spatial inhomogeneity that is included in the generalized free energy coarse-grained Landau-Ginzburg functional. The new formulation is based on physical considerations and accounts for the temperature variation of this length scale. A careful modeling of this temperature dependency is shown to be important for simulating the phenomena during spinodal decomposition under non-isothermal conditions.

ICHMT Digital Library

Bow shocks on a jet-like solid body shape. Thermal Sciences 2004, 2004. Pulsed, supersonic fuel jets - their characteristics and potential for improved diesel engine injection. PULSED, SUPERSONIC FUEL JETS - THEIR CHARACTERISTICS AND POTENTIAL FOR IMPROVED DIESEL ENGINE INJECTION
View of engine compartment components (left). Plots of temperature distributions in centreplane, forward of engine (right). CHT-04 - Advances in Computational Heat Transfer III, 2004. Devel... DEVELOPMENT AND CURRENT STATUS OF INDUSTRIAL THERMOFLUIDS CFD ANALYSIS
Pratt & Whitney's F-135 Joint Strike Fighter Engine under test in Florida is a 3600F class jet engine. TURBINE-09, 2009. Turbine airfoil leading edge stagnation aerodynamics and heat transfe... TURBINE AIRFOIL LEADING EDGE STAGNATION AERODYNAMICS AND HEAT TRANSFER - A REVIEW
Refractive index reconstructed field. (a) Second iteration. (b) Fourth iteration. Radiative Transfer - VI, 2010. Theoretical development for refractive index reconstruction from a radiative ... THEORETICAL DEVELOPMENT FOR REFRACTIVE INDEX RECONSTRUCTION FROM A RADIATIVE TRANSFER EQUATION-BASED ALGORITHM
Two inclusion test, four collimated sources. Radiative Transfer - VI, 2010. New developments in frequency domain optical tomography. Part II. Application with a L-BFGS associated to an inexa... NEW DEVELOPMENTS IN FREQUENCY DOMAIN OPTICAL TOMOGRAPHY. PART II. APPLICATION WITH A L-BFGS ASSOCIATED TO AN INEXACT LINE SEARCH