Abo Bibliothek: Guest
ICHMT DL Home Aktuelles Jahr Archive Vorstand International Centre for Heat and Mass Transfer

APPLICATION OF THE SECOND ORDER DISCRETE ORDINATES METHOD TO A RADIATION PROBLEM IN A SQUARE GEOMETRY

DOI: 10.1615/ICHMT.1995.RadTransfProc.80

Kyeong-Beom Cheong
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Kusong-dong 373-1, Yusong-ku, Taejon, KOREA

Tae-Ho Song
Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea

Abstrakt

Radiative heat transfer in a two dimensional square enclosure containing gray absorbing/emitting and nonscattering medium was investigated using the second order discrete ordinates method which had been reformulated from the conventional discrete ordinates method. Discretizaton equations were obtained using a Taylor series expansion method and using an exponential scheme with cubic interpolation method, and the results were compared with the conventional discrete ordinates solutions and with the zonal computations. Two sample problems were solved: in the first, the medium has known heat source and the walls are cold, and in the second, the medium has no heat source and one of the walls is hot while the others are cold. The walls are black and diffuse in both problems. Very promising results of the two schemes were obtained and especially the result of the exponential scheme agrees fairly well with those of the conventional discrete ordinates method and the zonal computations.

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