The Stirling Cycle as a Linear Wave Phenomenon
- 1 September 1989
- journal article
- review article
- Published by SAGE Publications in Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
- Vol. 203 (5) , 301-309
- https://doi.org/10.1243/pime_proc_1989_203_119_02
Abstract
The exchanger system of the Stirling cycle machine is modelled as some hundreds of wave-reflection sites representing the flow area discontinuities of individual tube transitions and regenerator gauzes. The methods of linear, inviscid, one-dimensional wave theory permit pressure and velocity to be predicted over a complete cycle in function of time and location in a single computational sweep of the flow passage system. Results computed for a specific Stirling machine are compared with the experimental counterpart. The comparison provides a tentative explanation for the frequently reported discrepancy between pressure characteristics measured experimentally and those derived from computer simulations based on steady-flow correlations between Cf and NRe.Keywords
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