Structure of Flow Fields Downstream of Two Different Swirll Generators

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F12%3APU98477" target="_blank" >RIV/00216305:26210/12:PU98477 - isvavai.cz</a>

Result on the web

<a href="http://www.engmech.cz/2012/proceedings/pdf/057_Stefan_D-FT.pdf" target="_blank" >http://www.engmech.cz/2012/proceedings/pdf/057_Stefan_D-FT.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Structure of Flow Fields Downstream of Two Different Swirll Generators

Original language description

This paper discusses the comparison of the flow fields downstream of two different swirl generators. Both swirl generators are used to imitate the flow at the exit of the hydraulic turbine runner and study spatio-temporal behaviour of the swirling flow in the draft tube (i.e. outlet diffuser part of the hydraulic turbine), which undergoes breakdown into vortex rope. Unsteady CFD computations are carried out for identical Reynolds number. Resulting velocity and vorticity profiles are correlated with the structure of the vortex rope. Difference in excited pressure pulsations is illustrated on amplitudefrequency spectra of static wall pressure.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JE - Non-nuclear power engineering, energy consumption and utilization

OECD FORD branch

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Project

<a href="/en/project/GA101%2F09%2F1715" target="_blank" >GA101/09/1715: Cavitating vortical structures induced by rotation of liquid</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Engineering Mechanics 2012, Book of Extended Abstracts

ISBN

978-80-86246-39-0

ISSN

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e-ISSN

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Number of pages

408

Pages from-to

326-327

Publisher name

Neuveden

Place of publication

Prague

Event location

Svratka

Event date

May 14, 2012

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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