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• What are form drag and profile drag ?

What are form drag and profile drag ?

Asked on 8th September 2021 in
• 60 views
• What is a Jet lag ?

What is a Jet lag ?

Asked on 8th September 2021 in
• 76 views
• What are stagnation pressure and stagnation temperature ?

What are stagnation pressure and stagnation temperature ?

Asked on 7th September 2021 in
• 117 views
• What are jet engine and scramjet engine ?

What are jet engine and scramjet engine ?

Asked on 7th September 2021 in
• 155 views
• What are the roles of ailerons and flaps in an aircraft?

What are the roles of ailerons and flaps in an aircraft?

Asked on 7th September 2021 in
• 109 views
• Find the location of this tap on cylindrical surface such that there is no deflection of fluid in the manometer.

A circular cylinder and a sphere are in a free stream flow with their axis perpendicular to the flow. At …

Asked on 1st September 2021 in
• 128 views
• Find and compare the lift slopes for a straight wing and a swept wing with a half-chord line sweep of $$30^{\circ}$$.

A finite wing with an elliptical lift distribution has an aspect ratio of $$6$$. The airfoil of the wing has …

Asked on 12th August 2021 in
• 128 views
• Considering, $$\tau = 0.1$$, find the angle of attack for the wing. Also, find the induced drag for the airplane, if span efficiency factor is $$0.6$$.

An airplane is cruising at $$50\,m/s$$ at standard sea level in straight and level flight. The airplane has a wing …

Asked on 12th August 2021 in
• 125 views
• Find the coefficient of lift and induced drag coefficients for this wing at an angle of attack of $$6^{\circ}$$.

A finite wing has aspect ratio of $$6$$ and taper ratio of $$0.8$$. The airfoil constituting this wing has a …

Asked on 11th August 2021 in
• 150 views
• Find the lift per unit span and the circulation at an angle of attack of $$4^{\circ}$$, for this airfoil.
A NACA 4421 airfoil having a chord length of $$2\,m$$ is flying at an velocity of $$70\,m/s$$ at an altitude …