Numerical and Experimental Investigation of Slanted Axial-flow pumping System
The Investigation of the three-dimensional (3D) fluid flow inside a slanted axial pumping system, based on the Reynolds time-averaged Navier-Stokes equations and the RNG k-ε turbulent flow model, applying the multiple reference frames. The flow detail of whole slanted axial pumping system is attai...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Eastern Macedonia and Thrace Institute of Technology
2013-07-01
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| Series: | Journal of Engineering Science and Technology Review |
| Subjects: | |
| Online Access: | http://www.jestr.org/downloads/Volume6Issue2/fulltext146213.pdf |
| Summary: | The Investigation of the three-dimensional (3D) fluid flow inside a slanted axial pumping system, based on the Reynolds
time-averaged Navier-Stokes equations and the RNG k-ε turbulent flow model, applying the multiple reference frames.
The flow detail of whole slanted axial pumping system is attained. The relation between hydraulic performance of outlet
sections with rotating impeller and installation height of pumping system and the stress distribution of impeller is
analyzed, so is the relative velocity distribution near the airfoil cross sections under the designed condition. The hydraulic
moment under different conditions was calculated based on the numerical results, and the changing features of hydraulic
moment on blades with flow rates are analyzed. The reference nominal height of pump is put forward. The comparison of
simulation results and the experiment data shows that the calculation performance closes agrees with the experiment
results at the best efficiency and designed operating conditions, but under the condition of low rate, deviations exist
between the two results. Using CFD method to simulate the internal flow field of slanted axial pumping system can
provide the basis for the hydraulic design of the slanted axial pumping system or its optimization. |
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| ISSN: | 1791-2377 1791-2377 |