Numerical Calculations on Flow and Heat Transfer in Smooth and Ribbed Two-Pass Square Channels under Rotational Effects
المؤلفون المشاركون
Zhang, Di
Xie, Gong-Nan
Shen, Zhongyang
Xie, Yonghui
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-05-15
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
U-shaped channel, which is also called two-pass channel, commonly exists in gas turbine internal coolant passages.
Ribbed walls are frequently adopted in internal passage to enhance the heat transfer.
Considering the rotational condition of gas turbine blade on operation, the effect of rotation is also investigated for the coolant channel which is close to real operation condition.
Thus, the objective of this study is to discuss the effect of rotation on fluid flow and heat transfer performance of U-shaped channel with ribbed walls under high rotational numbers.
Investigated Reynolds number is Re =12500 and the rotation numbers are Rob=0.4 and 0.6.
In the results, the spatially heat transfer coefficient distributions are exhibited to discuss the effect of rotation and roughened walls.
It is found that ribbed walls enhance the heat transfer rate significantly.
Under the rotational condition, the Nu in the first pass with outward flow is increased while that in the second pass is decreased.
Finally, average Nu ratio, friction ratio, and thermal performance are all presented to discuss the thermal characteristics.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Shen, Zhongyang& Xie, Yonghui& Zhang, Di& Xie, Gong-Nan. 2014. Numerical Calculations on Flow and Heat Transfer in Smooth and Ribbed Two-Pass Square Channels under Rotational Effects. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-513290
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Shen, Zhongyang…[et al.]. Numerical Calculations on Flow and Heat Transfer in Smooth and Ribbed Two-Pass Square Channels under Rotational Effects. Mathematical Problems in Engineering No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-513290
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Shen, Zhongyang& Xie, Yonghui& Zhang, Di& Xie, Gong-Nan. Numerical Calculations on Flow and Heat Transfer in Smooth and Ribbed Two-Pass Square Channels under Rotational Effects. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-513290
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-513290
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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