Heat transfer during nonlinear gas oscillations in a pipe open at one end
Abstract
The results of an experimental study of heat transfer in a pipe open at one end in which gas oscillations are generated by a flat piston moving harmonically are presented. The oscillograms of pressure and velocity pulsations in those sections of the pipe that are near the linear and second nonlinear resonance provide evidence of pressure and velocity discontinuities. The frequency distributions of the velocity halfamplitudes and Nusselt numbers have a resonant character, and the resonant frequencies are coincident. Heat transfer in pipes open at one end under nonlinear pulsations with the generation of periodic shock waves is adequately described by a quasistationary theory with allowance for thermoacoustic effects.
 Publication:

Inzhenerno Fizicheskii Zhurnal
 Pub Date:
 February 1983
 Bibcode:
 1983InFiZ..44..197K
 Keywords:

 Gas Flow;
 Heat Transfer;
 Oscillating Flow;
 Resonant Vibration;
 Shock Discontinuity;
 Flow Velocity;
 Gas Pipes;
 Harmonic Oscillation;
 Nusselt Number;
 Oscillographs;
 Pressure Pulses;
 Resonant Frequencies;
 Shock Wave Interaction;
 Tube Heat Exchangers;
 Fluid Mechanics and Heat Transfer