Q2/ Answer the following: 1) Separation in flow past a solid object is caused by (a) a favourable (negative ) pressure gradient (b) an adverse ( positive ) pressure gradient (c) the boundary layer thickness reducing to zero 2) In the design, we have to delay the separation point in order to reduce wake size (T/F) 3) Define Mach number, boundary layer and shock wave. 4) when --- , the flow is accelerates if the cross sectional area is increases (а) М<1 (b) М> 1 (c) M =1

Q2/ Answer the following: 1) Separation in flow past a solid object is caused by (a) a favourable (negative ) pressure gradient (b) an adverse ( positive ) pressure gradient (c) the boundary layer thickness reducing to zero 2) In the design, we have to delay the separation point in order to reduce wake size (T/F) 3) Define Mach number, boundary layer and shock wave. 4) when --- , the flow is accelerates if the cross sectional area is increases (а) М<1 (b) М> 1 (c) M =1

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Q2/ Answer the following:
1) Separation in flow past a solid object is caused by
(a) a favourable (negative ) pressure gradient
(b) an adverse ( positive ) pressure gradient
(c) the boundary layer thickness reducing to zero
2) In the design, we have to delay the separation point in order to reduce wake size (T/F)
3) Define Mach number, boundary layer and shock wave.
4) when
the flow is accelerates if the cross sectional area is increases
(a) M<1
(b) M > 1
(c) M =1

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