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- Advanced Fluid Mechanics - AFM
- 2018
- PYQ
**Biju Patnaik University of Technology Rourkela Odisha - BPUT**- Mechanical Engineering
- B.Tech
**55 Views**- 1 Offline Downloads
- Uploaded 10 months ago

Registration No : Total Number of Pages : 01 B.Tech PEME5402 7th Semester Back Examination 2018-19 ADVANCED FLUID MECHANICS BRANCH : MECH Time : 3 Hours Max Marks : 70 Q.CODE : E272 Answer Question No.1 which is compulsory and any FIVE from the rest. The figures in the right hand margin indicate marks. Q1 Answer the following questions : What do you mean by doublet What is coquette flow? Write the conditions for boundary layer separation. Explain Hiemenz flow. What is flownet. Mention its significance. Explain rotation and linear translation motion of a fluid particle. Determine the velocity and acceleration of a fluid particle at (2,4,6) at t=0.3s for the velocity field given by V=12x2z i +20xy j+50t Explain Euler’s equation and its significance. Explain circulation and its significance. Sketch the velocity distribution curves for laminar and turbulent flow in a circular pipe. (2 x 10) Q2 What do you mean by continuity equation? Derive the differential form of continuity equation for in-compressible fluid in Cartesian coordinates. (10) Q3 Derive the Navier-Stokes equation for compressible flow. (10) Q4 Find the velocity profile, co-efficient of friction factor and average velocity for a fully developed laminar flow in between two parallel plates. State your assumptions clearly (10) Q5 The two dimensional flow u=8x2y-(8/3)y3+(8/3)x3. Determine the stream function for the flow and find the velocity potential function. State, if the flow is rotational or irrotational. (10) Q6 Assuming second degree velocity distribution, i.e. u/Umax=2(y/δ)-(y/δ)2 in the boundary layer, determine using integral momentum equation, the thickness of boundary layer friction coefficient, displacement and momentum thickness. (10) a) b) Discuss Prandtl's Mixing Length Theory Explain Stokes and Oseen's approximation (5) (5) a) b) c) Write short notes on (Any TWO) Reynolds transport theorem Karman's velocity defect law Laminar and Turbulent Boundary layer a) b) c) d) e) f) g) h) i) j) Q7 Q8 (5+5)

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