Library Subscription: Guest
ICHMT DL Home Current Year Archives Executive Committee International Centre for Heat and Mass Transfer

DYNAMICS OF TURBULENT WAKE WITH SMALL EXCESS MOMENTUM IN STRATIFIED MEDIA

Gennadii G. Chernykh
Institute of Computational Technologies, Siberian Division of Russian Academy of Sciences, Novosibirsk, 630090, Russia

Nikolay P. Moshkin
School of Mathematics, Suranaree University of Technology, 111 University Avenue, 30000 Nakhon Ratchasima, THAILAND

A. V. Fomina
Novokuznetsk State Academy of Pedagogy, Novokuznetsk, 654066, Russia

Abstract

A numerical model of dynamics of turbulent wake with small excess momentum has been created on the basis of the three-dimensional parabolized system of averaged equations for motion, continuity, incompressibility, energy of turbulence and the rate of dissipation transfer. The calculation results show that as in the case of homogeneous fluid the wake's excess momentum of order of ±5−10 % from the total momentum in drag wake has weak influence on the decay of the turbulent energy and more significant influence on the axis value of the defect of the longitudinal velocity component. The turbulent wakes with small total excess momentum generate internal waves which are differed insignificant from the waves generated by momentumless wakes .

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