The numerical study of the wave refrigerator with rotating gas distributor

9th Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, Flow-Induced Vibration & Noise

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Title The numerical study of the wave refrigerator with rotating gas distributor
Creator Wei Zhao; Institute of Mechanics Chinese Academy of Sciences Beijing China
Jinping Li; Institute of Mechanics Chinese Academy of Sciences Beijing China
Qiu Wang; Institute of Mechanics Chinese Academy of Sciences Beijing China
Ji wei Li; <p>Institute of Mechanics</p><p>Chinese Academy of Sciences</p><p>Beijing China</p>
Tsutomu Saito; Muroran Institute of Technology, 050-8585 Muroran, Japan
Congxiao Yang; University of Chinese Academy of Sciences, Beijing,China
Subject Shock waves; Refrigerator; Gas dynamics
Description Shock wave refrigerators (SWR) refrigerate the inflow gas through periodical expansion waves with a rotating distributor. Due to its simple structure and robustness, SWR may have many potential applications if the efficiency becomes competitive with existing alternative devices. In order to improve the refrigerating efficiency, the characteristics of wave propagation and oscillation in the SWR are studied theoretically and numerically. Base on the shock tube theory, a simplified model is suggested, which includes the assumptions of flux-equilibrium and conservation of the free energy. This model allows the independent analysis of the operation parameters and design specifics. In order to delve into the relationship of factors that influence the SWR efficiency, CFD is used to simulate the propagation of the vortex induced by the inflow injecting inside the oscillation tube. The reflection wave inside the tube with different shape of the nozzles and different structure of the tube tail are studied. The considerations to improve the PWR efficiency are given.
Publisher Paper Management System for FIV2018
Contributor none
Date 2018-05-16 17:19:16
Type Peer-reviewed Paper
Numerical;Theoretical; Engineering analysis
Format application/pdf
Source Paper Management System for FIV2018; FIV2018 Conference
Language en
Rights Authors who submit to this conference agree to the following terms:<br /> <strong>a)</strong> Authors retain copyright over their work, while allowing the conference to place this unpublished work under a <a href="">Creative Commons Attribution License</a>, which allows others to freely access, use, and share the work, with an acknowledgement of the work's authorship and its initial presentation at this conference.<br /> <strong>b)</strong> Authors are able to waive the terms of the CC license and enter into separate, additional contractual arrangements for the non-exclusive distribution and subsequent publication of this work (e.g., publish a revised version in a journal, post it to an institutional repository or publish it in a book), with an acknowledgement of its initial presentation at this conference.<br /> <strong>c)</strong> In addition, authors are encouraged to post and share their work online (e.g., in institutional repositories or on their website) at any point before and after the conference.

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