Observation of Flow Structure Past a Full-stage Axial Air Turbine at The Nominal and Off-design States

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F21%3A00542734" target="_blank" >RIV/61388998:_____/21:00542734 - isvavai.cz</a>
Alternative codes found
RIV/49777513:23210/21:43961688
Result on the web
<a href="https://aip.scitation.org/doi/epdf/10.1063/5.0041491" target="_blank" >https://aip.scitation.org/doi/epdf/10.1063/5.0041491</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0041491" target="_blank" >10.1063/5.0041491</a>

Result language
angličtina
Original language name
Observation of Flow Structure Past a Full-stage Axial Air Turbine at The Nominal and Off-design States
Original language description
The air flow inside single-stage test turbine is studied experimentally by Particle Image Velocimetry (PIV). Here we report the measurements results at axial-tangential plane just behind the rotor wheel at middle blade radius. We studied one nominal state and two off-design states. We discuss the applicability of resolution of our PIV system to this flow - we can distinguish the largest vortical structures in the shear layers between blade wake and jet, but the bottom part of the cascade is invisible for us at this moment. Spatial distributions of statistical moments of vorticity show a non-classical behavior at the cross-points of stator and rotor jets. We use our previously published algorithm for calculating spatial energy spectrum and display the turbulent kinetic energy colored by different length-scales of the fluctuations.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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