A study of the pressure variations in the recovery tube due to unsteady turbulent boundary-layer growth

Murthy, AV (1976) A study of the pressure variations in the recovery tube due to unsteady turbulent boundary-layer growth. In: 9th Conference of Aerodynamic Testing, 7-9 Jun 1976, United States.

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Abstract

An analysis for calculating the pressure variations occurring in a recovery tube due to unsteady turbulent boundary-layer growth has been presented. The analysis uses one dimensional unsteady flow equations and the vertical velocities induced at the edge of the boundary layer. It is shown that the pressure at the tube entry increases with time and the theoretical predictions are in good agreement with the available experimental results. Finally, some estimates for the possible pressure rise at the diffuser exit of the proposed European Transonic Ludwieg tube tunnel are given.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Tubes;Aerodynamics;Variations;Boundaries;Turbulent flow; Turbulence;Mathematical analysis;Fluid dynamics;Fluid flow; Recovery;Accuracy;Boundary layer;Dimensions;Tunnels (transportation);Velocity;Diffusers;One dimensional flow; Pipe flow;Pressure distribution
Subjects: ASTRONAUTICS > Astrodynamics
Division/Department: Structures Division
Depositing User: M/S ICAST NAL
Date Deposited: 18 Dec 2006
Last Modified: 24 May 2010 09:54
URI: http://nal-ir.nal.res.in/id/eprint/3753

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