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Numerical Analysis of Three-Dimensional Unsteady Turbulent Flow in Circular Casing of a High Power Centrifugal Diffuser Pump
المؤلفون المشاركون
Pei, Ji
Wang, Wenjie
Yuan, Shouqi
المصدر
Advances in Mechanical Engineering
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-12-24
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
For high power centrifugal pump which is usually used in high risk applications, circular casing structure has been adopted to increase the reliability of the pump.
This special casing structure can make the flow more complex and cause huge hydraulic losses.
In this paper, the periodically unsteady turbulent flow in the circular casing of a high power centrifugal diffuser pump has been investigated numerically by CFD calculation.
The velocity distributions in different positions were analyzed, and the pressure fluctuation results in time and frequency domains were considered.
Finally, the pressure fluctuation intensity coefficient (PFIC) and peak pressure coefficient (PPC) based on statistical thinking were defined on each grid node and the results were analyzed quantitatively to check the time accumulation effect of the unsteady flow phenomenon.
The results show that strong flow unsteadiness can be found near diffuser outlet positions of the circular channel and in discharge tube.
In addition, the PPC and PFIC results can supply a new angle of view to evaluate the pressure variation, and it is a good supplement to the traditional unsteady pressure analysis method in time and frequency domains.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Pei, Ji& Yuan, Shouqi& Wang, Wenjie. 2013. Numerical Analysis of Three-Dimensional Unsteady Turbulent Flow in Circular Casing of a High Power Centrifugal Diffuser Pump. Advances in Mechanical Engineering،Vol. 2013, no. 2013, pp.1-14.
https://search.emarefa.net/detail/BIM-454249
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Pei, Ji…[et al.]. Numerical Analysis of Three-Dimensional Unsteady Turbulent Flow in Circular Casing of a High Power Centrifugal Diffuser Pump. Advances in Mechanical Engineering No. 2013 (2013), pp.1-14.
https://search.emarefa.net/detail/BIM-454249
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Pei, Ji& Yuan, Shouqi& Wang, Wenjie. Numerical Analysis of Three-Dimensional Unsteady Turbulent Flow in Circular Casing of a High Power Centrifugal Diffuser Pump. Advances in Mechanical Engineering. 2013. Vol. 2013, no. 2013, pp.1-14.
https://search.emarefa.net/detail/BIM-454249
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-454249
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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