Experimental and numerical investigation of rotating stall phenomenon in centrifugal blower at different blade number of the impeller
Other Title(s)
تحري عملي وعددي لظاهرة الانهيار الدوار في نافخ طارد مركزي لعدد مختلف لريش البشارة
Joint Authors
Kazim, Muhammad Abd al-Nabi
Salih, Fuad Ulwan
Qasim, Muna Sabah
Source
Journal of Engineering and Development
Issue
Vol. 19, Issue 1 (31 Jan. 2015), pp.31-49, 19 p.
Publisher
al-Mustansyriah University College of Engineering
Publication Date
2015-01-31
Country of Publication
Iraq
No. of Pages
19
Main Subjects
Abstract EN
Experimental and numerical investigations to study the effect number of blade on the rotating stall phenomenon and pressure fluctuations in centrifugal blower.
The experimental test rig which concludes a centrifugal blower, pressure sensors and measurement instrumentations are design and constructed for the present work.
A data acquisition system (hardware) and its software have been designed and manufactured to transfer the signal from pressure sensor to the computer and then analysis with time and frequency domain.
The experimental study has been carried out by measuring the static pressure variation and pressure fluctuation for three cases of impeller which they different in number of blades (5, 9, 10) and outlet blade angle.
Measuring of static values has been completed at various points prepared on the front-wall of the volute casing along one path for three cases of impeller.
This path is angular path around the impeller.
The experimental results demonstrate that the pressure fluctuations for various mass flow rates are a non-periodical nature and the pressure fluctuations amplitude increase as the mass flow rate decrease.
The results indicate that the impeller with nine number of blades demonstrate high pressure fluctuation comparison with other case.
Numerical simulation has been carried out on present centrifugal blower to analyze both flow field and pressure fluctuations by using FLUENT 14 package.
The numerical simulation has been completed by solving the continuity and momentum equations with moving reference frame technique inside the blower.
A comparison of pressure fluctuations inside the blower with various numbers of blades was carried out.
The results of numerical simulation give a good agreement with the experimental results.
American Psychological Association (APA)
Qasim, Muna Sabah& Salih, Fuad Ulwan& Kazim, Muhammad Abd al-Nabi. 2015. Experimental and numerical investigation of rotating stall phenomenon in centrifugal blower at different blade number of the impeller. Journal of Engineering and Development،Vol. 19, no. 1, pp.31-49.
https://search.emarefa.net/detail/BIM-830169
Modern Language Association (MLA)
Qasim, Muna Sabah…[et al.]. Experimental and numerical investigation of rotating stall phenomenon in centrifugal blower at different blade number of the impeller. Journal of Engineering and Development Vol. 19, no. 1 (Jan. 2015), pp.31-49.
https://search.emarefa.net/detail/BIM-830169
American Medical Association (AMA)
Qasim, Muna Sabah& Salih, Fuad Ulwan& Kazim, Muhammad Abd al-Nabi. Experimental and numerical investigation of rotating stall phenomenon in centrifugal blower at different blade number of the impeller. Journal of Engineering and Development. 2015. Vol. 19, no. 1, pp.31-49.
https://search.emarefa.net/detail/BIM-830169
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-830169