Department of Mechanical Engineering Indian Institute of Technology Guwahati Guwahati - 781039, INDIA ME 651: Numerical Methods for Thermal Radiation Heat Transfer: 3-0-0-6 Jan – April 2016 Instructor: Prof. Subhash C. Mishra, FNAE, FASME, FIE(I) Fundamentals of thermal radiation: What is thermal radiation?; 1-4 Basic differences between conduction, convection and radiation; emissive power; solid angles; radiative intensity; radiative heat flux; surface radiation; volumetric radiation/radiation in a participating medium; treatment methods for surface radiation and volumetric radiation. Radiative transfer without participating media: view factor; 5-6 methods for calculating view factors; radiative exchange between black surfaces; radiative exchange between diffuse-gray surfaces. Basics of radiative transfer with participating media: absorption, 7-8 emission and scattering; equation of radiative transfer; divergence of radiative heat flux; overall energy conservation equation; radiative equilibrium; non-radiative equilibrium. Revision of lectures 1 - 8 9 Discrete transfer method (DTM) for the 1-D planar medium: 10 absorbing, emitting, isothermal medium with black boundaries (DTM) Methods for solving radiative transfer problems: 1-D planar medium; radiative equilibrium; radiative non-equilibrium; absorbing, emitting medium; absorbing-emitting-scattering medium; Page 1 of 4 CA – 1 black 11-14 Quizzes Assignments Topics Lectures COURSE OUTLINE Quizzes Assignments Lectures Topics boundaries; reflecting boundaries. Quadratures in solving numerical radiative transfer 11 Discrete transfer method (DTM) 12 Discrete ordinate method (DOM) – classical DOM and 13 Modified DOM Finite volume method (FVM) 14 CA - 2 (DTM, DOM, FVM) [20%] Revision of lectures 10 - 14 15 Combined radiation, conduction and convection problems: Q#1 16 - 20 [40%] solving energy equation by the finite difference method, finite volume method, lattice Boltzmann method; solving a transient conductionradiation heat transfer problem in a 1-D planar participating medium; derivation of energy equation and calculation of radiative information using any of the methods such as the DTM, the DOM and the FVM. Analysis of radiative transfer problem involving collimated (sun 21-22 CA – 3 light/laser) radiation (steady-state): applications and analysis; (Combined problems involving short-pulse radiation; formulation in the DTM, the mode) DOM and the FVM. [20%] Revision of lectures 16 - 22 23 Analysis of radiative transfer problem involving collimated (sun 24 -26 light/laser) radiation (transient-state: short-pulse) – applications and analysis; formulation in the DTM, the DOM and the FVM; problems involving short-pulse radiation; formulation in the DTM, the DOM and the FVM. Analysis of radiative transfer in 2-D rectangular enclosure: Page 2 of 4 27-28 CA – 4 Quizzes Assignments Lectures Topics isothermal medium; non-isothermal medium; absorbing, emitting (1-D medium; absorbing, emitting, scattering medium – Analysis using the collimated) DTM, the DOM and the FVM [15%] Analysis of radiative transfer in a cylindrical and spherical 29 - 32 enclosures: 1-D infinite concentric cylindrical enclosure; concentric spherical enclosure; isothermal medium, non-isothermal medium; absorbing, emitting medium; absorbing, emitting and scattering medium; analysis using the FVM Revision of lectures 24 - 32 Monte Carlo method (MCM): 33 1-D planar isothermal medium 34 - 35 CA – 5 2-D medium; non-isothermal medium; absorbing, emitting medium; rectangular- absorbing, emitting and scattering medium; MCM for 2-D rectangular DOM and FVM enclosure [20%] Comparisons of the DTM, the DOM, the FVM and the MCM 36 results for radiative transport in a 1-D planar absorbing, emitting scattering medium Q#2 [60%] and also for a combined mode conduction- radiation problem Analytic method: 1-D planar isothermal and non-isothermal medium 37-38 Flux method: 1-D planar medium 39 Zonal method: 1-D and 2-D Cartesian enclosures 40 P-N approximation: 1-D planar medium 41 Finite element method (FEM) 42 Quizzes will be held outside the class hours. Books M. F. Modest, Radiative Heat Transfer, McGraw-Hill, third edition, Academic Press, 20013 R. Siegel, J. R. Howell and M.P. Menguc, Thermal Radiation Heat Transfer, fifth edition, CRC Press, Taylor & Francis, New York, 20011. Reference Research papers of Prof. Subhash C. Mishra listed on his website: http://www.iitg.ernet.in/scm Page 3 of 4 Scheme of Evaluation Assignments: 5 Nos. Quizzes: 2 Mid Semester Examination End Semester Examination : : : : 15% 15% 30% 40% Note All assignments will require programming knowledge. Students can program in any language. At the time of evaluation, students will be asked to run the code(s) and make some changes. Results need to be submitted in graphical forms and some interpretations of results will be required. Students should familiarize with tech-plot for plotting the graphs. Softcopy of the home assignments are to be submitted in a prescribed format. Graded home assignments will be returned on the first working day after the sixth day of the due date of the assignment submission. Class Schedule: Mon: 9.00 – 9.55, Thursday: 10.00 – 10.55; Friday: 11.00 – 11.55 All classes in Room No.: 1005 10 31 12 classes Wednesday, 27 January 2016 Tuesday, 22 March 2016 Monday, 18 April 2016 Week Fri 4 11 18 25 Fri 3 10 17 24 31 10+1=11 classes Thurs 7 14 21 28 Thurs Mon 5 12 19 26 Week 4 11 18 25 April Mon 1 8 15 22 29 March Fri 8 15 22 29 Mon Week Fri Thurs 7 11 14 18 21 25 28 8 +1 =9 classes February Thurs 2 3 4 5 Mon Week January 4 11 18 25 7 14 21 28 1 8 15 22 29 11 classes Classes with Friday Time Table Classes with Friday Time Table Classes with Wednesday Time Table Jan – April 2015: 9 +12+11+10 = 42 Classes Mid Semester Examination: Mon, 29 February 2016 - Sun, 6 March 2016 End Semester Examination: Sat, 30 April 2016, (Mon – Sat) 2 -7 May 2016 Availability of the instructor Instructor will clarify all doubts related to his instructions. Until 30 minutes after every class, students can meet without any appointment in my office, Room No.: C 204, C- Block, ME Department. After that, with a prior appointment, students can come prepared with their doubts. Page 4 of 4
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