Accession Number:

ADA329588

Title:

Thermo-Fluid Mechanic Study of Thermoacoustic Devices

Descriptive Note:

Summary rept. 1 Jun 96-31 May 97

Corporate Author:

JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

Report Date:

1997-06-15

Pagination or Media Count:

17.0

Abstract:

The work is articulated in three separate projects a development and study of a simplified model of thermoacoustic devices b visualization of oscillating temperature and flow fields c numerical modeling. During the past year, in area a, work has focused on an approximate time-domain formulation of the thermoacoustic instability and on the heat and momentum exchange modeling in area b, heat transfer data have been obtained by holographic interferometry and a new thermoacoustic refrigerator suitable for further experimentation has been designed in area c thermal stratification effects have been fully incorporated in a new algorithm with results that are significantly different from the linear theory and compare very well with data.

Subject Categories:

  • Thermodynamics
  • Air Conditioning, Heating, Lighting and Ventilating

Distribution Statement:

APPROVED FOR PUBLIC RELEASE