Download GTU BE/B.Tech 2019 Summer 5th Sem New 2150107 Aerodynamics I Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 5th Sem New 2150107 Aerodynamics I Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2150107 Date: 19/06/2019

Subject Name: Aerodynamics I

Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) What are the aerodynamic forces and moments? 03
(b) Describe about pressure coefficient. 04
(c) Explain airfoil nomenclature with neat sketch. 07

Q.2 (a) Briefly explain about critical Mach number. 03
(b) Explain airfoil Stalling with neat sketch. 04
(c) Elaborate about centre of pressure. 07
OR
(c) Discuss about the types of drag. 07
Q.3 (a) Explain CL ? ? curve for symmetrical as well as cambered Airfoil. 03
(b) Explain angular velocity of fluid element. 04
(c) Express stream function and velocity potential for source flow. 07
OR
Q.3 (a) What is circulation? 03
(b) Derive the expression for velocity potential and stream function for
vortex flow.
04
(c) Elaborate the combination of source flow and sink flow with uniform
flow.
07
Q.4 (a) Write a note on vorticity of fluid element. 03
(b) Explain stream function. 04
(c) Explain about non-lifting flow over a cylinder. 07
OR
Q.4 (a) Explain velocity potential. 03
(b) Discuss about doublet flow. 04
(c) Derive an equation of Speed of Sound. 07
Q.5 (a) What is shock wave? Write a note on Normal shock with a suitable
diagram.
03
(b) Discuss about Oblique shock with neat sketch. 04
(c) Derive a relation between an actual Mach number (M) and
Characteristic Mach number (M*).
07
OR
Q.5 (a) What happens to flow properties when shock wave encounters? 03
(b) Write a note on Prandtl-Meyer Expansion waves. 04
(c) Derive ?-?-M relation. 07


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