| Autor: |
Tereshchenko, Yuriy, Doroshenko, Ekaterina, Voljanskaja, Larisa |
| Zdroj: |
Eastern-European Journal of Enterprise Technologies; 2013, Vol. 4 Issue 7, p36-38, 3p |
| Abstrakt: |
Flow separation is one of the most complex current phenomena accompanying the flow in a compressor. Separation in the blade rows leads to abrupt changes of compressor parameters. The flow separation in the blade rows is caused by wide angles of blades attacks and high pressure gradients in the inter-blade channels respectively. The flow separation can be avoided by applying various methods of power redistribution between different flow areas in curved diffuser inter-blade channels of axial flow compressor stages. One of the methods is the forced flow turbulization from the blades surface. Turbulization can be achieved by installing vortex generators on the blades surface in the form of discrete hollows or projecting above the surface. The objective of the research was studying the flow in diffuser channel with turbulators. The influence of allocation and geometric size of turbulators on the changes of boundary-layer displacement thickness in the diffuser channel exit sectionhas been analyzed. The numerical experiment has been used for the research. The results of numerical analysis have shown that allocation of turbulators in the input section of the channel is the most effective. The numerical modeling results have been compared to results of physical experiment. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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