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Transient flow of liquid in plastic pipes
ID
Urbanowicz, Kamil
(
Avtor
),
ID
Duan, Huan-Feng
(
Avtor
),
ID
Bergant, Anton
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(1,94 MB)
MD5: E2F2AABCB47A0E27B707242E08B7CD1D
URL - Izvorni URL, za dostop obiščite
https://www.sv-jme.eu/sl/article/transient-flow-of-liquid-in-plastic-pipes/
Galerija slik
Izvleček
Nowadays, plastic pipes play a key role in fluid conveyance, for example, in urban water supply systems. Dynamic analysis of designed water pipe networks requires the use of numerical methods that allow for solving basic equations that describe transient flows occurring in plastic pipes. In this paper, the main equations were formulated with pressure (p) and velocity (v) as the principal variables. A novel simplified retarded strain solution is used to properly model the pipe-wall viscoelasticity effect during transient flow process. Unsteady friction is calculated with the use of a filtered weighting function (with three exponential terms). The proposed numerical method enables the efficient modelling of transient flow in plastic pressurized pipes. Extensive simulations are performed and compared with experimental results known from three different European research centres (London, Cassino, and Lyon), with the aim of demonstrating the impacts of plastic pipe properties and frequency-dependent hydraulic resistance on transient pipe flow oscillations. The effectiveness of the proposed method for determining the creep functions of plastic pipes is also examined and discussed.
Jezik:
Angleški jezik
Ključne besede:
plastic pipes
,
viscoelasticity
,
water hammer
,
transient flow
,
method of characteristics
,
unsteady friction
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2020
Št. strani:
Str. 77-90
Številčenje:
Vol. 66, no. 2
PID:
20.500.12556/RUL-114379
UDK:
519.61(045)
ISSN pri članku:
0039-2480
DOI:
10.5545/sv-jme.2019.6324
COBISS.SI-ID:
17045019
Datum objave v RUL:
24.02.2020
Število ogledov:
2363
Število prenosov:
496
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Objavi na:
Gradivo je del revije
Naslov:
Strojniški vestnik
Skrajšan naslov:
Stroj. vestn.
Založnik:
Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
ISSN:
0039-2480
COBISS.SI-ID:
762116
Sekundarni jezik
Jezik:
Slovenski jezik
Naslov:
Prehodni kapljevinski tok v plastičnih ceveh
Ključne besede:
plastične cevi
,
nestabilno trenje
,
viskoelastičnost
,
numerične metode
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