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Main points of this exam paper are: Grid Points, Temperature Distributiona, Gauss-Seidel Method Suffices, Boundary Conditions, Finite Difference, Multi Step Methods
Typology: Exams
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Autumn Examinations 2008/
Module Code: MATH 7016
School: Mechanical & Process Engineering
Programme Title: Bachelor of Engineering (Hons) in Mechanical Engineering – Stage 2
Programme Code: EMECH_8_Y
External Examiner(s): Dr P Robinson Internal Examiner(s): Dr R Sheehy
Instructions: Answer ALL questions.
Duration: 2 Hours
Sitting: Autumn 2009
Requirements for this examination:
Note to Candidates: Please check the Programme Title and the Module Title to ensure that you have received the correct examination paper. If in doubt please contact an Invigilator.
2 2
2 ∂∂ +∂∂ =
holds for all interior points and the boundary conditions are: T = -80 on the line y = 2 T = -40y on the lines x = ± 2 T = 240 + 80x for -2 ≤ x ≤0 on the line y = - T = 240 – 80x for 0 ≤ x ≤2 on the line y = - Find the temperatures at 9 interior grid points. (One iteration of Gauss-Seidel Method suffices). Use a suitable relaxation factor.
(b) Calculate the flux at any interior grid point. Plate aluminium k = 49.
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(b) Use a Finite Difference Method with 4 interior nodes to solve the same problem as Part (a).