Experimental Study of a Low-Specific Speed Francis Model Runner during Resonance
المؤلفون المشاركون
Agnalt, Einar
Solemslie, Bjørn W.
Dahlhaug, Ole G.
Østby, Petter
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-12-23
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
An analysis of the pressure in a runner channel of a low-specific speed Francis model runner during resonance is presented, which includes experiments and the development of a pressure model to estimate both the convective and acoustic pressure field from the measurements.
The pressure was measured with four pressure sensors mounted in the runner hub along one runner channel.
The mechanical excitation of the runner corresponded to the forced excitation from rotor-stator interaction.
The rotational speed was used to control the excitation frequency.
The measurements found a clear resonance peak in the pressure field excited by the second harmonic of the guide vane passing frequency.
From the developed pressure model, the eigenfrequency and damping were estimated.
The convective pressure field seems to diminish almost linearly from the inlet to outlet of the runner, while the acoustic pressure field had the highest amplitudes in the middle of the runner channel.
At resonance, the acoustic pressure clearly dominated over the convective pressure.
As the turbine geometry is available to the public, it provides an opportunity for the researchers to verify their codes at resonance conditions.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Agnalt, Einar& Østby, Petter& Solemslie, Bjørn W.& Dahlhaug, Ole G.. 2018. Experimental Study of a Low-Specific Speed Francis Model Runner during Resonance. Shock and Vibration،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1215337
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Agnalt, Einar…[et al.]. Experimental Study of a Low-Specific Speed Francis Model Runner during Resonance. Shock and Vibration No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1215337
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Agnalt, Einar& Østby, Petter& Solemslie, Bjørn W.& Dahlhaug, Ole G.. Experimental Study of a Low-Specific Speed Francis Model Runner during Resonance. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1215337
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1215337
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