Computational Fluid dynamics question paper 2018 semester end examination(SEE), Papers of Fluid Dynamics

Download Computational Fluid dynamics question paper 2018 semester end examination(SEE) and more Papers Fluid Dynamics in PDF only on Docsity!

DAYANANOA SAGAR UNVERSiyY Question paper Course: 15ME423 - Computational Fluid Dynamics Event: B.Tech (70:30)- December 2018 DAYANANDA SAGAR UNIVERSITY USN No: VII Semester B. Tech Examinations - December 2018 / January 2019 Course Title: Computational Fluid Dynamics Course Code: 15ME423 Duration: 03 Hours Date: 31-12-2018 Time: 10:00 AM to 01:00 PM Max Marks: 70 Note: 1. Answer 5 full questions choosing one from each Section 2. Each Section carries 14 Marks 3. Formulae hand sheets are permitted 4. Missing Data may be suitably assumed SECTION -1 1a. What is CFD? List the applications of CFD. Briefly explain how a CED Code works. 1b. Explain the basis of classification of Partial Differential Equations. Classify (08 Marks) the following PDEs. (i) 2-D Poisson's Equation (ii) 2-D Laplace Equation (iii) 1-D Unsteady Conduction equation without heat generation (iv) 3-D Heat Diffusion equation (06 Marks) OR 2a. Write the Navier Stokes equation for fluid flow indicating various terms. (08 Marks) Reduce the same for: (i) 1-Dsteady incompressible flow (ji) Bernoullis equation 2.b. Derive the mass conservation equation in three dimensions. (06 Marks) SECTION - 2 3a. Develop Finite Difference Scheme for 1-D transient heat conduction equation. (04 Marks) 3b, A large uranium plate of thickness 10 em (k = 28 W/m-K, a = 125x106 m?/s) is initially at 100 C, Heat generation rate in the plate is § x 10 w/m’, At time t=0, the left and right sides of plate are subjected to convection with fluid at temperature 0° C and heat transfer co-efficient of 1500 W/m?-K. Using 2 divisions, determine the temperature distribution in the plate after 40 seconds. Show calculations of stability criterion for interior and boundary nodes. (10 Marks) Page 1 of 3 IONDVS 25-02-2019 114 sll d Scanned by CamScanner