Publication Date:
2019-08-15
Description:
For the tunnel corrections of compressible flows those profiles are of interest for which at least the second approximation of the Janzen-Rayleigh method can be applied in closed form. One such case is presented by certain elliptical symmetrical cylinders located in the center of a tunnel with fixed walls and whose maximum velocity, incompressible, is twice the velocity of flow. In the numerical solution the maximum velocity at the profile and the tunnel wall as well as the entry of sonic velocity is computed. The velocity distribution past the contour and in the minimum cross section at various Mach numbers is illustrated on a worked out-example.
Keywords:
Fluid Mechanics and Thermodynamics
Type:
NACA-TM-1030
,
Luftfahrtforschung; 18; 9; 311-316
Format:
application/pdf