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

A ROLE FOR COMPUTATIONAL HEAT TRANSFER IN ENGINEERING EDUCATION

DOI: 10.1615/ICHMT.2012.CHT-12.20
pages 11-18

Brian Spalding
Imperial College, London and CHAM, Ltd., UK

Abstract

Traditional engineering education, like its underlying sciences, has two main aspects: theoretical and experimental; and the first of these also has two parts:
• quantitative formulation of the relevant general laws of science; and
• deduction of their implications in particular practical circumstances.
The deductions are conducted by mathematical methods in which differential calculus plays a large part. Students lacking proficiency in such methods are not admitted to engineering schools. Observers who remark that few practising engineers ever exercise that proficiency have long doubted the wisdom of the disbarment; and of the excessive attention to functional analysis in engineering curricula. Now that the digital computer makes all the deductions which are needed in engineering practice, those doubts must be seriously addressed. Differential calculus applies the laws of science to infinitesimal volumes; and it expresses its deductions in terms of a handful of time-honoured pre- tabulated functions: exponential, logarithmic, trigonometric, etc. Only rarely do experiments show that reality conforms to them well enough for use in equipment design, without the application of large safety factors. Computer-based analysis applies the laws to finite volumes; and suffers no restraint on the form of its tabulated results. Experiments show that reality conforms closely to its deductions very often. Safety factors can therefore be much nearer to unity; with great economic advantage. The present lecturer argues that these facts should be reflected in both the admission procedures and the teaching methods of engineering education. In respect of the second, detailed suggestions are offered as to what should be done. The suggestions are applicable generally across the whole of engineering education; but, being presented at a conference on Computational Heat Transfer (CHT), they are here exemplified by application to heat-exchanger theory.

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