Back to Search
Start Over
Numerical Analysis of Stress on Pump Blade by One-Way Coupled Fluid-Structure Simulation
- Source :
- Journal of Fluid Science and Technology, Vol 5, Iss 2, Pp 219-234 (2010)
- Publication Year :
- 2010
- Publisher :
- The Japan Society of Mechanical Engineers, 2010.
-
Abstract
- A mixed-flow pump with an unshrouded impeller was computed by a one-way coupled fluid-structure simulation to evaluate a prediction accuracy of stress and analyze a flow pattern which caused the largest stress. The stress occurring around a blade root was predicted by a numerical simulation and compared with an experimental one. Five flow rates, Q/Qbep=0,40,70,100 and 120% were simulated and the predicted stresses at all flow rates agreed with the experimental ones within -11∼+6% accuracy. The largest stress occurred around a blade root on a pressure side of blade surface at all flow rates. The stress became largest at 70% flow rate. A flow pattern around the blade was analyzed to investigate how the largest stress occurred at 70% flow rate. It was found in this study that a flow separation occurred around a leading edge on a suction side of blade surface at 70% flow rate and the largest load was acting on an outside region of blade.
Details
- Language :
- English
- ISSN :
- 18805558
- Volume :
- 5
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- Journal of Fluid Science and Technology
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.9e3f6edbe6461991662642a51206b9
- Document Type :
- article
- Full Text :
- https://doi.org/10.1299/jfst.5.219