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Calculate the wave drag on the wings of an airplane which is flying at a Mach number of \(2.1\) at an altitude of \(10000\, m\). The airplane weights \(70000\, N\) and has a wing area of \(20\, m^2\).
Calculate the wave drag on the wings of an airplane which is flying at a Mach number of \(2.1\) at …
drag

drag force

Shock waves

Supersonic airplanes

Supersonic flow

Kumar59 Asked on 18th January 2021 in Aerodynamics.
- 2K views
- 1 answers
- 0 votes
What is a Mach wave? How does it forms?
What is a Mach wave? How does it forms?
Mach number

Mach wave

Supersonic airplanes

Supersonic flow

Kisan Kumar Asked on 18th January 2021 in Aerodynamics.
- 2K views
- 1 answers
- 0 votes
An airplane flying at a Mach number of 2.2 makes a Mach wave at the nose. What angle does it make with the flow direction?
An airplane flying at a Mach number of 2.2 makes a Mach wave at the nose. What angle does it …
Mach number

Mach wave

Supersonic airplanes

Supersonic flow

Kumar59 Asked on 18th January 2021 in Flight mechanics.
- 2K views
- 1 answers
- 0 votes
The velocity at a point on the wing placed in a wind tunnel is \(251 m/s\). The pressure and temperature of the test section is \(1\,atm\) and \(285\,K\). If the velocity of the flow in the test section is \(235\;m/s\), find the pressure coefficient at the point.
The velocity at a point on the wing placed in a wind tunnel is \(251 m/s\). The pressure and temperature …
Aircraft performance

Airplane design

flight mechanics

Kisan Kumar Asked on 14th January 2021 in Flight mechanics.
- 2K views
- 1 answers
- 0 votes
Find the coefficient of pressure at a point on the wing where the velocity is \(58\,m/s\). The airplane is flying at a low speed of \(50\,m/s\).
Find the coefficient of pressure at a point on the wing where the velocity is \(58\,m/s\). The airplane is flying …
Aircraft performance

airfoil

Airplane design

Kumar59 Asked on 14th January 2021 in Flight mechanics.
- 2K views
- 1 answers
- 0 votes
Calculate the pressure coefficient at a point on the airfoil where the pressure is \( 8.9 \times 10^4\,N/m^2\). Airfoil is in freestream velocity of \(40\,m/s \) and is at standard sea – level conditions.
Calculate the pressure coefficient at a point on the airfoil where the pressure is \( 8.9 \times 10^4\,N/m^2\). Airfoil is …
Aircraft performance

airfoil

Airplane design

Kisan Kumar Asked on 12th January 2021 in Aeronautics.
- 2K views
- 1 answers
- 0 votes
Calculate the lift, drag and moment coefficient about quarter chord per unit span of an airfoil which is at an angle of attack of \({7\, ^ \circ }\) with a flow velocity of \(40\, m/s\) at standard sea level conditions. The airfoil has a chord length of \(1\, m\).
Calculate the lift, drag and moment coefficient about quarter chord per unit span of an airfoil which is at an …
Aircraft performance

airfoil

Airplane design

airspeed

lift and drag

Kumar59 Asked on 4th January 2021 in Flight mechanics.
- 2K views
- 1 answers
- 0 votes
What are angle of attack, absolute angle of attack and induced angle of attack?
What are angle of attack, absolute angle of attack and induced angle of attack?
Aircraft performance

Airplane design

airspeed

lift

lift coefficient

Kisan Kumar Asked on 4th January 2021 in Aeronautics.
- 3K views
- 1 answers
- 0 votes
What is center of pressure and aerodynamic center?
What is center of pressure and aerodynamic center?
aerodynamic center

Aircraft performance

Airplane design

Kumar59 Asked on 4th January 2021 in Aeronautics.
- 2K views
- 1 answers
- 0 votes
Why induced drag is minimum for an elliptical wing planform?
Why induced drag is minimum for an elliptical wing planform?
Aircraft performance

Airplane design

drag

drag coefficient

drag force

techAir Asked on 17th December 2020 in Aerodynamics.
- 2K views
- 1 answers
- 0 votes

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