Department of Mechanical Engineering and
Applied Mechanics
MEAM
665: ADVANCED HEAT AND MASS TRANSFER: CONVECTION
Spring 1999
TuTh 3-4:30pm, 222 Moore
Instructors: Dr. P. S. Ayyaswamy
(till 3 February 1999)
Dr. N. Lior (from 8 February 1999)
212 TB, Email: lior@seas.upenn.edu
Phone: (215) 898-4803
Newsgroup: upenn.meam.meam665
(index)
Please do not print this
material on the SEAS or CETS printers.
Online ScheduleExams
Makeup classes: Monday, 5 April, 3 pm; Wednesday 14 April 3 pm, 309TB
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1. INTRODUCTIONCourse Outline
2. FLUID DYNAMICS: THE NAVIER-STOKES EQUATIONS WITH MASS TRANSFER
2.1 Mass continuity
2.2 Momentum conservation
2.3 Mass diffusion
3. THE ENERGY EQUATION
3.1 The inviscid case
3.2 The unsteady viscous case with mass transfer and internal
heat generation
3.3 Convection with turbulent flow
3.3.1 The Reynolds stress concept
3.3.2 The turbulent eddy diffusivity approach
3.3.3 One-equation model
3.3.3 The k- model
4. FORCED CONVECTION
5.1 Analysis of the equations
5.1.1 Dimensional analysis
5.1.2 Differential similarity
5.2 The boundary layer approach
5.3 Solutions of the boundary layer equations: external flows
5.3.1 Constant fluid properties
5.3.2 Variable fluid properties
5.3.3 Convection with mass transfer
5.4 Integral analysis
5.5 Turbulent external boundary layers
5.5.1 The "universal" velocity and temperature profiles
5.5.2 Plate with unheated starting length
5.5.3 Arbitrarily specified surface temperature
5.5.4 Application of the k- model
5.5.6 Introduction Large Eddy Simulation
5.6 Laminar internal flows
5.6.1 The cases of fully developed hydrodynamic and thermal
boundary layer for circular and noncircular tubes, and uniform and nonuniform
peripheral boundary conditions.
5.6.2 The circular tube, fully developed hydrodynamic boundary
layer, with thermal entry length
5.6.3 The combined hydrodynamic and thermal entry length solutions,
5.7 Turbulent internal flows
5.8 correlations
6. NATURAL CONVECTION
6.1 Introduction: regimes and equations
6.2 Differential similarity analysis
6.3 The boundary layer approximation
6.4 A systematic approach for looking for similarity solutions
6.5 Natural convection plumes
6.6 Mixed (free and forced) convection
6.7 Natural convection in enclosures.
7. CONDENSATION HEAT TRANSFER
8. BOILING HEAT TRANSFER
9. APPLICATIONS TO THE DESIGN OF HEAT AND MASS TRANSFER EQUIPMENT
(return to top)Homework (1/3 of grade), one term project (1/3 of grade), final examination (1/3 of grade).
Course Conduct
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L. C. Burmeister, "Convective Heat transfer", 2d edition, WileyRecommended Texts:
A. Bejan, "Convection Heat Transfer",
2d edition, Wiley
A.F. Mills "Basic Heat and Mass
Transfer", 2d edition, Prentice Hall
B. Gebhart, Y. Jaluria, R. L. Mahajan
and B. Sammakia, "Buoyancy-Induced Flows and Transport", Hemisphere
G. F. Hewitt, Gl. Shires and T.R.
Bott, "Process Heat Transfer", CRC Press, Begell House
Anderson, Tannehill, and Pletcher,
"Computational Fluid Mechanics and Heat Transfer", 2d edition, McGraw Hill
C.-J Chen, S.-Y. Jaw, "Fundamentals
of Turbulence Modeling", Taylor and Francis
V. Carey, "Liquid-Vapor Phase-Change
Phenomena", Hemisphere
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Software Algor is available, this is a finite element program for solving problems in solid mechanics, fluid mechanics, and heat transfer in fluids and solids. MATLAB PDE Toolbox can solve partial differential equations representing 2-d (and 3-d axisymmetric) heat conduction and diffusion, as well as heat and mass transfer in convective flows.
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By appointment or walk-in(return to top
Do problems:
Burmeister:
HW1: 2.1, 2.2, 2.3, 2.4
HW2: 2.5, 2.7, 2.9, 2.10, 2.11
HW3: 2.14, 2.16, 2.19, 3.2
HW4: 3.14, 3.15, 3.16
HW5: 5.2, 5.18, 5.19, 5.25, 5.26
HW6: 6.5, 6.7, 6.11, 6.15
HW 7: 4.7, 4.16, 4.24
HW8: 10.1, 10.3, 10.6
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LIST OF SUGGESTED PROJECTS
for MEAM 665
Spring 1999
A. Introduction
A list of possible projects is given below, but other projects may be proposed by the students. Project selection must be completed by 16 February 1999. The final report is due on 26 April 1999. NO TIME EXTENSIONS WILL BE GIVEN OTHER THAN FOR DOCUMENTED MEDICAL PROBLEMS OR MILITARY SERVICE.
The final report should be written in a clear manner, have a table of
contents, a detailed
reference list of the publications that you have read and quoted in
the report, good graphics of
the system and results, a virus-free (please check) diskette or email
attachment of the program
you have developed, and its annotated printout, with clear instructions
so I can run it during the
evaluation.
The project grade would be based on:
(1) Comprehensiveness of the background review: 20%
(2) Description of the specific subject of analysis: 10%
(3) Quality of the computational/analytical model: 28%
(4) Scope and validity of the calculated results: 27%
(5) Discussion of the results, and conclusions: 15%
B. Suggested projects (once the projects are chosen by students, a more detailed description will be provided)
1.The feasibility of an externally mounted temperature sensor for measuring temperature of flowing fluid inside a conduit: Muto.
2. The effects of temperature boundary conditions and upstream turbulnce levels on turbulent flow of air (with temperature-dependnent properties) inside a circular conduit, using a 2-equation turbulence model for laminar, transition and turbulent conditions: Xiong.
3. Model and solve for the performance and efficiency of heat-transfer enhancing thin helical cylindrical fins wrapped around a fluid-conducting pipe in cross flow: Quinones.
4. Flow and heat&mass transfer in membrane distillation: Al-Klaibi
5. Heat and mass transfer across a desiccant in a humid air stream
6. Flow and mixed convection in a heat recovery chimney: Hu.
7. Impingement cooling
8. A 3-D convection diffusion model for CO2 washout in human lung: Zhao
Exam Dates: 30 April 1999, 3 pm, rm 309TB
2 hours, closed book, notes, and memory
computers.
.
University
of Pennsylvania Library System
Created:12/13/99
Last
Updated: 12/13/99
Maintained by: N. Lior