List of top Aeronautical and Aerospace Engineering Questions

In 2D potential flow, the doublet is the limit of the superposition of which two singularities?

An ideal glider has drag characteristics given by \[ C_D = C_{D0} + C_{Di}, \] where \(C_{Di} = K C_L^2\) is the induced drag coefficient, \(C_L\) is the lift coefficient, and \(K\) is a constant. For maximum range of the glider, the ratio \(\dfrac{C_{D0}}{C_{Di}}\) is:

The figures shown in the options are schematics of airfoil shapes (not to scale). For a civilian transport aircraft designed for a cruise Mach number of \(0.8\), which among them is aerodynamically best suited as a wing section?

Consider the Blasius solution for the incompressible laminar flat–plate boundary layer. Among the options, select the correct relation for the development of the momentum thickness \(\theta\) with distance \(x\) from the leading edge along the plate.