The modification of the mixed flow pump with respect to its stability

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F11%3APU90101" target="_blank" >RIV/00216305:26210/11:PU90101 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The modification of the mixed flow pump with respect to its stability

Popis výsledku v původním jazyce

This paper is focused on the CFD simulation of the mixed flow pump (i.e. radiaxial pump) with the aim to detect the reasons of Y-Q characteristic instability. The main reasons of pressure pulsations were detected by means of the analysis of velocity andpressure fields inside the pump combined with the theoretical approach. Consequently, the modifications of spiral case and pump suction area were made based on the knowledge of flow conditions and the shape of dissipation function. The primary design ofpump geometry was modelled as the base model serving for the comparison of individual modification influence. The basic experimental data are available for this geometry. This approach replaced the more complicated and with respect to convergence of allcomputational tasks more difficult calculation for the compressible liquid flow. The modification of primary pump consisted in inserting the three fins types. Subsequently, the evaluation of pressure pulsations, specific energy curves and

Název v anglickém jazyce

The modification of the mixed flow pump with respect to its stability

Popis výsledku anglicky

This paper is focused on the CFD simulation of the mixed flow pump (i.e. radiaxial pump) with the aim to detect the reasons of Y-Q characteristic instability. The main reasons of pressure pulsations were detected by means of the analysis of velocity andpressure fields inside the pump combined with the theoretical approach. Consequently, the modifications of spiral case and pump suction area were made based on the knowledge of flow conditions and the shape of dissipation function. The primary design ofpump geometry was modelled as the base model serving for the comparison of individual modification influence. The basic experimental data are available for this geometry. This approach replaced the more complicated and with respect to convergence of allcomputational tasks more difficult calculation for the compressible liquid flow. The modification of primary pump consisted in inserting the three fins types. Subsequently, the evaluation of pressure pulsations, specific energy curves and

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

<a href="/cs/project/FR-TI1%2F418" target="_blank" >FR-TI1/418: Výzkum a vývoj rychloběžných čerpadel s potlačenou kavitací</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Strojnícky časopis

ISSN

0039-2472

e-ISSN

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Svazek periodika

62

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

10

Strana od-do

93-103

Kód UT WoS článku

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EID výsledku v databázi Scopus

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