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Fluid-Elastic Instability Tests on Parallel Triangular Tube Bundles with Different Mass Ratio Values under Increasing and Decreasing Flow Velocities
المؤلفون المشاركون
Zhang, Xu
Jiang, Bin
Zhang, Luhong
Xiao, Xiaoming
المصدر
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-20، 20ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-10-25
دولة النشر
مصر
عدد الصفحات
20
التخصصات الرئيسية
الملخص EN
To study the effects of increasing and decreasing flow velocities on the fluid-elastic instability of tube bundles, the responses of an elastically mounted tube in a rigid parallel triangular tube bundle with a pitch-to-diameter ratio of 1.67 were tested in a water tunnel subjected to crossflow.
Aluminum and stainless steel tubes were tested, respectively.
In the in-line and transverse directions, the amplitudes, power spectrum density functions, response frequencies, added mass coefficients, and other results were obtained and compared.
Results show that the nonlinear hysteresis phenomenon occurred in both tube bundle vibrations.
When the flow velocity is decreasing, the tubes which have been in the state of fluid-elastic instability can keep on this state for a certain flow velocity range.
During this process, the response frequencies of the tubes will decrease.
Furthermore, the response frequencies of the aluminum tube can decrease much more than those of the stainless steel tube.
The fluid-elastic instability constants fitted for these experiments were obtained from experimental data.
A deeper insight into the fluid-elastic instability of tube bundles was also obtained by synthesizing the results.
This study is beneficial for designing and operating equipment with tube bundles inside, as well as for further research on the fluid-elastic instability of tube bundles.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhang, Xu& Jiang, Bin& Zhang, Luhong& Xiao, Xiaoming. 2016. Fluid-Elastic Instability Tests on Parallel Triangular Tube Bundles with Different Mass Ratio Values under Increasing and Decreasing Flow Velocities. Shock and Vibration،Vol. 2016, no. 2016, pp.1-20.
https://search.emarefa.net/detail/BIM-1118818
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhang, Xu…[et al.]. Fluid-Elastic Instability Tests on Parallel Triangular Tube Bundles with Different Mass Ratio Values under Increasing and Decreasing Flow Velocities. Shock and Vibration No. 2016 (2016), pp.1-20.
https://search.emarefa.net/detail/BIM-1118818
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhang, Xu& Jiang, Bin& Zhang, Luhong& Xiao, Xiaoming. Fluid-Elastic Instability Tests on Parallel Triangular Tube Bundles with Different Mass Ratio Values under Increasing and Decreasing Flow Velocities. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-20.
https://search.emarefa.net/detail/BIM-1118818
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1118818
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