Kisan Kumar's Profile

233
Points

Questions
68

24

• ## How to do Isro chandrayaan 3 launch registration?

How to do Isro chandrayaan 3 launch registration , ISRO launch registration, ISRO launch slot registration, ISRO mission registration?

Kisan Kumar Asked on 21st June 2023 in
• 535 views
• ## Why is critical Mach number of a sphere higher than a cylinder?

Why is critical Mach number of a sphere higher than a cylinder?

Kisan Kumar Asked on 13th January 2022 in
• 866 views
• ## What is AWACS?

What is AWACS?

Kisan Kumar Asked on 13th December 2021 in
• 845 views
• ## What is a Jet lag?

What is a Jet lag?

Kisan Kumar Asked on 8th September 2021 in
• 947 views
• ## A circular cylinder and a sphere are in a free stream flow with their axis perpendicular to the flow. At the top of the sphere there is a pressure tap which is connected by a tube to one side of a manometer. There is a pressure tap on the surface of the cylinder which is connected to the other side of the manometer. 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 …

Kisan Kumar Asked on 1st September 2021 in
• 921 views
• ## A NACA 4421 airfoil having a chord length of $$2\,m$$ is flying at an velocity of $$70\,m/s$$ at an altitude of $$2\,km$$. 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 …

Kisan Kumar Asked on 22nd July 2021 in
• 1K views
• ## Can an airfoil fly upside-down ?

A positively cambered airfoil has a zero-lift angle of $$-3.5^{\circ}$$. The lift slope for this airfoil is $$0.12$$ per degree. …

Kisan Kumar Asked on 13th July 2021 in
• 2K views
• ## Find the velocity of air in the test section of a low speed open circuit subsonic wind tunnel which has an inlet -to-throat area ratio of $$10$$. The U-tube mercury manometer read as a height difference of $$10.5\,cm$$ for the pressure difference between the inlet and the test section of the wind tunnel.

Find the velocity of air in the test section of a low speed open circuit subsonic wind tunnel which has …

Kisan Kumar Asked on 15th June 2021 in
• 992 views
• ## Find the acceleration of a fluid particle in the $$x$$ direction at $$(x,y) = (3,1)$$ for a velocity field, which is given by$$\vec{V} = 3y\hat{i}+4x\hat{j}$$. $$x$$ and $$y$$ are in meters.

Find the acceleration of a fluid particle in the $$x$$ direction at $$(x,y) = (3,1)$$ for a velocity field, which …

Kisan Kumar Asked on 5th May 2021 in
• 1K views
• ## A velocity field is given by $$u=\frac{y}{x^{3}+y}$$ and $$v=\frac{-x}{x^{3}+y}$$. Find the equation of the streamline which is passing through the point $$\left ( 2,6 \right )$$.
A velocity field is given by $$u=\frac{y}{x^{3}+y}$$ and $$v=\frac{-x}{x^{3}+y}$$. Find the equation of the streamline which is passing through the …