Construction of a reduced-order dynamic model for prospective swirling flow control in hydraulic turbine draft tube
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F19%3APU131780" target="_blank" >RIV/00216305:26210/19:PU131780 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1755-1315/240/2/022065" target="_blank" >https://iopscience.iop.org/article/10.1088/1755-1315/240/2/022065</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1755-1315/240/2/022065" target="_blank" >10.1088/1755-1315/240/2/022065</a>
Alternative languages
Result language
angličtina
Original language name
Construction of a reduced-order dynamic model for prospective swirling flow control in hydraulic turbine draft tube
Original language description
Vortex rope in Francis turbine draft tubes poses serious problems. Emphasis on operation of the turbines in wide operating range, quite far from the design point, is a challenge for both the turbine designers and power plant owners. While flow control becomes popular in aircraft and automotive industry, it is still feared in turbomachinery. Present paper brings results of investigations aimed on construction of a reduced order model, which describes dynamics of the swirling flow in the draft tube. First step is assesing the dominant modes of the flow, second step is projection of those modes onto a transport equation. Final set of ordinary differential equations is a relatively simple model of the time evolution of the flow dynamics, which is basis for the flow control aiming on mitigation of the instabilities (e.g. vortex rope).
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/GA17-01088S" target="_blank" >GA17-01088S: 3D Instability of a Shear Layer in Adverse Pressure Gradient</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
IOP Conference Series: Earth and Environmental Science
ISBN
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ISSN
1755-1315
e-ISSN
—
Number of pages
10
Pages from-to
1-10
Publisher name
Neuveden
Place of publication
neuveden
Event location
Kyoto
Event date
Sep 17, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000560282600065