Panel Discussion on Inducer Design Criteria

Creators: Wegner, Marc; Acosta, Allan J.; Tsujimoto, Yoshinobu

Abstract

This article reports a panel discussion titled Inducer Design Criteria presented at the 9th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-9). The presentations of the panelists and the subsequent discussions are summarized. It is shown that cavitation instabilities are major problems in modern turbopumps and that design criteria to eliminate them are needed. Available design methods for inducers and marine propellers are reviewed, and new criteria to enhance stability are proposed. The current status of CFD is reviewed and an example of successful application is shown. Discussions of several specific topics are reported and future research needs are noted.

Additional Information

Released under a "Creative Commons Attribution License," enabling the unrestricted use, distribution, and reproduction of an article in any medium, provided that the original work is properly cited. Received 25 June 2002; accepted 1 July 2002. The authors thank all the panelists and the discussers as well as the chair of the panel, Professor Joseph Katz, who not only participated in the panel but also reviewed the draft of this manuscript. Special thanks to Mr. Thomas Zoladz of NASA MSFC who kindly offered to transcribe the discussions on which this report is based. Thanks also to Mr. Koichi Yonezawa and Mr. Akira Fujii of Osaka University for their assistance in recording the panel discussion and preparing the manuscript. In Memoriam: We regret to say that the senior author, MarcWegner, passed away on February 13, 2003.

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