# Aerodynamics II

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Aerodynamics is a branch of dynamics that deals with the motion of air and other gaseous fluids and with the forces acting on bodies in motion relative to such fluids.  The qualities of an object that affect how easily it is able to move through the air. An example of a study of aerodynamics is to determine the potential speed of a vehicle based on the way its shape will move through air.

Supersonic aerofoil region in transonic flow and linearized supersonic flow, (2D cases)
What happens if you reduce the curvature of the aerofoil leading edge?
Newtonian models for Hypersonic momentum balance :
For supersonic wing increasing the aspect ratio :
According to the slender body theory the fuselage
Slender body theory in supersonic flow
Supersonic Delta wing
Supersonic Swept wings
In a compressible Laminar Boundary Layer BL
Recuperation factor, r, in a laminar compressible BL
BL Laminar, for given wall heat flux qw and M, calculation sequence for Cf and Tw:
Maintaining natural laminar flow on the attachment line
The value of the Bulk Modulus of elasticity for an incompressible fluid is
The compressible fluid flow outside the boundary layer is isentropic because:
A flow of Inviscid fluid:
For a supersonic flow the Mach nº increases if :
An Inviscid 1D flow with heat transfer:
For a normal shock wave:
An Inviscid 1D flow with heat transfer:
In a shock tube:
The compressible steady 2D potential equations :
The Prandtl-Glauert rule
Linearized potential flow
Supercritical aerofoils :
You need to choose the climb speed that gets you the most altitude in the shortest horizontal distance. Which speed are you flying?
The value of prandtl number from water range from
Where are self-aligning pitot tubes used?
What is the difference between the actual free stream pressure and the measured static pressure called?
The mechanism of shock wave heating can be understood from an analysis of the discontinuities in pressure and other physical quantities that happen at the_______
The oblique shock strength is______
Two pipes of diameters d1 and d2 converge to form a pipe of diameter 2d. If the liquid flows with a velocity of v1 and v2 in the two pipes, what will be the flow velocity in the third pipe?
Speed of sound in air is______
The different probes that disturb the airflow is called ______
Below a diagram that gives a vectorical visual representation of the movement of a body or a fluid is called as_________.

The Prandtl Number approximates ___________
Which one of the following is the correct relation between compressibility β and Bulk Modulus k
While the upstream and downstream flow directions are
unchanged across a normal shock, they are different for flow across an
Rayleigh line represents the locus of states with same impulse pressure and mass velocity.
The adiabatic flow through a constant area duct where the effect of friction is considered as_______.
The depth of a trapezoidal channel section is 2m, base width of 3m and has a side slope of 1H:2V. Calculate n if the bed slope is 1 in 1000.
Calculate the velocity of flow through a channel having depth of 1.2m and specific energy equal to 1.24m.
The specific energy of a channel section is 1.01m and the velocity of flow is 0.5m⁄s, calculate the depth of flow
Supersonic wings After the aircraft goes supersonic the Aerodynamic Center (AC) moves from where to where in reference to the Mean Aerodynamic Chord (MAC)?
Momentum is the measurement of _____ in motion?
Finish the formula: Momentum = Mass * _________
Which of the following is a unit of measurement for momentum?
What do we call it when two or more moving objects exert forces on each other for a short period of time?
The continuity equation is based on the principle of
Which of the following is true about adiabatic flow in constant area duct with friction?
Bow occurs at what Mach number?
A boundary over which physical conditions undergo changes is called _______
Rayleigh line represents the locus of states with same impulse pressure and mass velocity
Speed of sound in air depends on the
If a liquid enters a pipe of diameter d with a velocity v, what will it’s velocity at the exit if the diameter reduces to 0.5d?
For M=0. Cp is known over the wing profile. Use Prandtl-Glauert To know Cp for M=0
Two pipes, each of diameter d, converge to form a pipe of diameter D. What should be the relaion between d and D such that flow velocity in the third pipe becomes double of that in each of the two pipes?
A shock wave carries_______
Non-Adiabatic flow through a constant area duct where the effect of heat addition or rejection is considered as________
In a two dimensional flow, the component of the velocity along the X-axis and the Y-axis are u = ax + by and v = ax – by. For what condition will the flow field be continuous?
In a two dimensional flow, the component of velocity along the X-axis and the Y-axis are u = ax^2 + bxy and v = bxy +ay^2. The condition for the flow field to be continuous is
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