Effects of a Nonuniform Tip Clearance Profile on the Performance and Flow Field in a Centrifugal Compressor

المؤلفون المشاركون

Baek, Jehyun
Oh, Seonghwan
Choi, Minsuk
Jung, Yohan

المصدر

International Journal of Rotating Machinery

العدد

المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-11، 11ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2012-08-07

دولة النشر

مصر

عدد الصفحات

11

التخصصات الرئيسية

هندسة ميكانيكية

الملخص EN

This paper presents a numerical investigation of the effects of a nonuniform tip clearance profile on the performance and flow field in a centrifugal compressor with a vaneless diffuser.

This study focuses in particular on the magnitude and location of the wake.

Six impellers with different tip clearance profiles were tested in the flow simulations.

The accuracy of the numerical simulations was assessed by comparing the experimental data with the computational results for a system characterized by the original tip clearance.

Although the performance improved for low tip clearances, a low tip clearance at the trailing edge improved the compressor performance more significantly than a low tip clearance at the leading edge.

The flow field calculated for a system characterized by a low tip clearance at the trailing edge produced a more uniform velocity distribution both in the circumferential and in the axial directions at the impeller exit because the wake magnitude was reduced.

As a consequence, this impeller provided a better potential for diffusion processes inside a vaneless diffuser.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Jung, Yohan& Choi, Minsuk& Oh, Seonghwan& Baek, Jehyun. 2012. Effects of a Nonuniform Tip Clearance Profile on the Performance and Flow Field in a Centrifugal Compressor. International Journal of Rotating Machinery،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-464126

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Jung, Yohan…[et al.]. Effects of a Nonuniform Tip Clearance Profile on the Performance and Flow Field in a Centrifugal Compressor. International Journal of Rotating Machinery No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-464126

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Jung, Yohan& Choi, Minsuk& Oh, Seonghwan& Baek, Jehyun. Effects of a Nonuniform Tip Clearance Profile on the Performance and Flow Field in a Centrifugal Compressor. International Journal of Rotating Machinery. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-464126

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-464126