Numerical Investigation of Pressure Fluctuation Characteristics in a Centrifugal Pump with Variable Axial Clearance
المؤلفون المشاركون
Cao, Lei
Xiao, Yexiang
Luo, Yongyao
Zheng-wei, Wang
المصدر
International Journal of Rotating Machinery
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-04-26
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
Clearance flows in the sidewall gaps of centrifugal pumps are unsteady as well as main flows in the volute casing and impeller, which may cause vibration and noise, and the corresponding pressure fluctuations are related to the axial clearance size.
In this paper, unsteady numerical simulations were conducted to predict the unsteady flows within the entire flow passage of a centrifugal pump operating in the design condition.
Pressure fluctuation characteristics in the volute casing, impeller, and sidewall gaps were investigated with three axial clearance sizes.
Results show that an axial clearance variation affects the pressure fluctuation characteristics in each flow domain by different degree.
The greatest pressure fluctuation occurs at the blade pressure surface and is almost not influenced by the axial clearance variation which has a certainly effect on the pressure fluctuation characteristics around the tongue.
The maximum pressure fluctuation amplitude in the sidewall gaps is larger than that in the volute casing, and different spectrum characteristics show up in the three models due to the interaction between the clearance flow and the main flow as well as the rotor-stator interaction.
Therefore, clearance flow should be taken into consideration in the hydraulic design of centrifugal pumps.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Cao, Lei& Zheng-wei, Wang& Xiao, Yexiang& Luo, Yongyao. 2016. Numerical Investigation of Pressure Fluctuation Characteristics in a Centrifugal Pump with Variable Axial Clearance. International Journal of Rotating Machinery،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1107054
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Cao, Lei…[et al.]. Numerical Investigation of Pressure Fluctuation Characteristics in a Centrifugal Pump with Variable Axial Clearance. International Journal of Rotating Machinery No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1107054
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Cao, Lei& Zheng-wei, Wang& Xiao, Yexiang& Luo, Yongyao. Numerical Investigation of Pressure Fluctuation Characteristics in a Centrifugal Pump with Variable Axial Clearance. International Journal of Rotating Machinery. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1107054
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1107054
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر