B.Tech II Year I Semester (R09) Supplementary Examinations December 2015 FLUID MECHANICS (Civil Engineering) Time: 3 hours
Max. Marks: 70
Answer any FIVE questions All questions carry equal marks ***** 1 (a) Explain about atmospheric, gauge and vacuum pressure. (b) Find the height of water column corresponding to a pressure of 54 kN/m2. 2 (a) A circular plate 4 m diameter is submerged in water with its greatest and least depths below the surface being 3m and 1 m respectively. Determine the total pressure and centre of pressure. (b) Explain about total pressure. 3
Find the velocity and acceleration at a point ( 1, 2, 3) after 1 second for a three dimensional flow given by u = ( yz + t), v = (xz - t), w = (xy)
4 (a) What are the applications of Bernoulli’s equation? (b) A pipe of diameter 400 mm carries water at a velocity of 250 m/s. The pressures at the points A and B are given as 30 N/cm2 and 20 N/cm2 respectively while the datum head at A and B are 28 m and 32 m. Find the loss of head between A and B. 5
Explain the effect of pressure gradient on boundary layer separation.
6
Water is flowing through a 200 mm diameter pipe with coefficient of friction f = 0.04 the shear stress at a point 40 mm from the pipe axis is 0.00981 N/cm2. Find shear stress at pipe wall.
7 (a) What is a compound pipe? Explain in detail. (b) Explain pipes in parallel. 8 (a) What is a stepped notch? (b) Find the discharge through a trapezoidal notch which is 1m wide at the top and 0.40 m at the bottom and is 30 cm in height. The head of water on the notch is 20 cm. Assume Cd for rectangular portion as 0.62 while for triangular portion = 0.60. *****
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In laminar entry pipe flow, a boundary layer of thickness δ(z) grows along the sides of the pipe throughout the 'inlet region', until its thickness becomes comparable to the pipe radius. Mohanty & Asthana (1978) calculate the streamwise extent of th
(a) Newton's law of viscosity states that. (i) shear stress is directly proportional to. the velocity. (ii) shear stress is directly proportional to ... energy with the help of a mathematical. expression. 4. (b) Derive Euler's equations of motion. 10
Subject Name: Fluid Mechanics. ... l) In a foot step bearing, if the speed of the shaft is doubled, then the torque required ... Displaying Fluid Mechanics..pdf.
1. a) Write a note on the different types of displacement of fluid particles. 10. b) A painter is painting a wall 3m à 4m with a brush 10 cm wide and 1.25 cm. thick.
(a) Derive the Darcy - Weisbach equation for. friction head loss in a pipe. . Water is flowing'through a horizantal pipe. line 1500 m long and 200 mm in diameter,.
1. a) Derive the three dimensional continuity equation and explain its significance. 10. b) Calculate the velocity gradient at distances of 0, 100 and 160 mm from ...
upon the notes for a Siggraph course on Fluid Simulation[Bridson. 2007]. I also used .... âAt each time step all the fluid properties are moved by the flow field u.
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