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1) If for a flow a stream function exists and satisfies the Laplace equation, then which of the following is the correct statement? (a) The flow is rotational (b) The flow is rotational and incompressible (c) The flow is irrotational and compressible (d)The flow is irrotational and incompressible 2) The boundary layer thickness for flow over a flat plate (a) decreases with an increase in the free stream velocity (b) increases with an increase in the free stream velocity (c) decreases with an increase in the kinematic viscosity

1) If for a flow a stream function exists and satisfies the Laplace equation, then which of the following is the correct statement? (a) The flow is rotational (b) The flow is rotational and incompressible (c) The flow is irrotational and compressible (d)The flow is irrotational and incompressible 2) The boundary layer thickness for flow over a flat plate (a) decreases with an increase in the free stream velocity (b) increases with an increase in the free stream velocity (c) decreases with an increase in the kinematic viscosity

Elements Of Electromagnetics
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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Q4: Answer the following 1) If for a flow a stream function exists and satisfies the Laplace equation, then which of the following is the correct statement? (a) The flow is rotational (b) The flow is rotational and incompressible (c) The flow is irrotational and compressible (d)The flow is irrotational and incompressible |2) The boundary layer thickness for flow over a flat plate (a) decreases with an increase in the free stream velocity (b) increases with an increase in the free stream velocity (c) decreases with an increase in the kinematic viscosity 3) In the Fanno flow ,if the flow is supersonic ,a shock appears in the duct when (b) L > Lmax 4) An automotive wing is a device whose intended design is to generate (a) L = Lmax (c) L< Lmax ----------as air passes around it. 5) -- is a unit less value denotes how much an object resists movement through a fluid |6)Fluid accelerate or decelerates at any point in a variable area duct depends on ------ and 7) To decrease drag force it is necessary to increase flow detachment (T/F) 8) The reduction of fuel consumption is one of the objectives of improvement of flow past vehicle bodies.(T/F)
Transcribed Image Text:Q4: Answer the following 1) If for a flow a stream function exists and satisfies the Laplace equation, then which of the following is the correct statement? (a) The flow is rotational (b) The flow is rotational and incompressible (c) The flow is irrotational and compressible (d)The flow is irrotational and incompressible |2) The boundary layer thickness for flow over a flat plate (a) decreases with an increase in the free stream velocity (b) increases with an increase in the free stream velocity (c) decreases with an increase in the kinematic viscosity 3) In the Fanno flow ,if the flow is supersonic ,a shock appears in the duct when (b) L > Lmax 4) An automotive wing is a device whose intended design is to generate (a) L = Lmax (c) L< Lmax ----------as air passes around it. 5) -- is a unit less value denotes how much an object resists movement through a fluid |6)Fluid accelerate or decelerates at any point in a variable area duct depends on ------ and 7) To decrease drag force it is necessary to increase flow detachment (T/F) 8) The reduction of fuel consumption is one of the objectives of improvement of flow past vehicle bodies.(T/F)
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