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Title:
Gonilni mehanizmi kavitacijskega vrtinca v vstopnem vodu radialne črpalke
Authors:
ID
Predin, Andrej
(Author)
ID
Biluš, Ignacijo
(Author)
Files:
http://www.dlib.si/details/URN:NBN:SI:doc-XCSHZCQQ
Language:
Slovenian
Work type:
Not categorized
Typology:
1.01 - Original Scientific Article
Organization:
FS - Faculty of Mechanical Engineering
Abstract:
V prispevku je podana analiza gonilnih mehanizmov in tlačnih utripanj povezanih s pojavom kavitacijskega vrtinca v vstopnem vodu radialne črpalke. Kavitacijski vrtinec je rezultat interakcije številnih zapletenih sekundarnih tokovnih pojavov, ki nastopijo kot posledica obratovanja s podoptimalnimi pretoki v kavitacijskem obratovalnem režimu. Izvedene in predstavljene so tudi meritve tlačnih utripanj v vstopnem vodu radialne črpalke na različnih razdaljah od rotorskega ustja na sklenjeni kavitacijski merilni progi. Meritve so izvedene pri različnih vrtilnih hitrostih in različnih tlakih nad spodnjo vodno gladino. Podani so tudi rezultat frekvenčne analize posnetih tlačnih utripanj.
Keywords:
radial pumps
,
cavitation
,
swirl
,
operating regime
,
pressure pulsation measurements
Publisher:
Association of Mechanical Engineers and Technicians of Slovenia et al.
Year of publishing:
2001
Number of pages:
str. 234-247
Numbering:
Letn. 47, št. 6
PID:
20.500.12556/DKUM-53187
UDC:
621.67:532.5
ISSN on article:
0039-2480
COBISS.SI-ID:
4767003
NUK URN:
URN:SI:UM:DK:XL2E9UK4
Publication date in DKUM:
10.07.2015
Views:
1400
Downloads:
27
Metadata:
Categories:
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Record is a part of a journal
Title:
Strojniški vestnik
Shortened title:
Stroj. vestn.
Publisher:
Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.]
ISSN:
0039-2480
COBISS.SI-ID:
762116
Secondary language
Language:
Slovenian
Title:
The driving mechanisms of the cavitation swirl in the entrance pipe of a radial pump
Abstract:
Analyses are given of the driving mechanisms and pressure pulsations relating to the cavitation swirl in the entrance pipe of a radial pumpe. The appearance of cavitation swirl is a result of a complicated secondary flow interaction, which appears as a consequence of the pump operating at small, under-optimum capacities in the cavitation operating regime. Results of the flow pressure pulsation measurements in the entrance pipe of the radial pump are reported. These measurements were made at different distances from the impeller eye, in the upstream direction at the closed cavitation measuring test ring with the pump operating at different impeller speeds and at different values of gas (air) pressure over the lower liquid (water) position. Results are also given for the frequency analyses of the measured flow pressure.
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