Publisher : The Korean Society of Mechanical Engineers
DOI : 10.22634/KSME-B.19126.96.36.1999
Title & Authors
Experimental investigation on the heat transfer characteristics of an oscillatory pipe flow Park, Sang-Jin; Lee, Dae-Yeong; No, Seung-Tak;
Effects of oscillatory flow upon heat transfer characteristics have been studied experimentally for oscillating flow in a circular tube. The experimental apparatus was designed to simulate the heat exchangers of the Stirling or Vuilleumier cycle machines and the test section consists of heater and cooler. Measurements were presented of heat flux, axial wall temperature distribution, and radial temperature profile of the working fluid for several cases of oscillation frequency and swept distance ratio. The influences of two main parameters, frequency and tidal displacement of the oscillation were investigated. Then the heat transfer coefficient at the heater is obtained. The carried by the authors with a assumption of oscillatory laminar slug flow.