Publication detail
Analysis of in-line check valve with respect to the pipeline dynamics
KLAS, R. HABÁN, V. RUDOLF, P.
Czech title
Analýza zpětného ventilu s ohledem na dynamiku potrubního systému
English title
Analysis of in-line check valve with respect to the pipeline dynamics
Type
conference paper
Language
en
Original abstract
The following study is focused on the flow analysis within the concentric in-line check valve. In-line check valve is part of the pipe and shut off the stream of fluid. In case that backflow occurs on the downstream side, the valve is fully or partially lifted and then abruptly closes. This effect brings undesirable pressure shocks in the entire system. The study therefore deals with the CFD analysis of steady and unsteady flow with respect to velocity and pressure field. Especially unsteady calculation mode reflects the influence of local inertial acceleration acting on the fluid and on the valve. Analysis is complemented by equation of motion of a valve which interacts with the fluid.
Czech abstract
Studie je zaměřena na rozbor proudění v interiéru souosého zpětného ventilu. Zpětný ventil je součástí potrubí, v němž plní funkci hrazení průtoku. Při změně průtoku od kladných do záporných hodnot zůstává ventil plně nebo z části otevřen a teprve posléze se náhle uzavírá. To přináší nežádoucí rázy v celém systému. Studie se proto zabývá CFD analýzou proudění s ohledem na rychlostní a tlakové pole ve stacionárním i nestacionárním režimu. Zejména nestacionární režim zohledňuje vliv lokálních setrvačných zrychlení působících na kapalinu i na ventil. Analýzu doplňuje i pohybová rovnice ventilu v interakci s kapalinou.
English abstract
The following study is focused on the flow analysis within the concentric in-line check valve. In-line check valve is part of the pipe and shut off the stream of fluid. In case that backflow occurs on the downstream side, the valve is fully or partially lifted and then abruptly closes. This effect brings undesirable pressure shocks in the entire system. The study therefore deals with the CFD analysis of steady and unsteady flow with respect to velocity and pressure field. Especially unsteady calculation mode reflects the influence of local inertial acceleration acting on the fluid and on the valve. Analysis is complemented by equation of motion of a valve which interacts with the fluid.
Keywords in Czech
zpětný ventil; CFD analýza; nestacionární proudění; dynamika potrubního systému
Keywords in English
in-line check valve; CFD analysis; unsteady flow; pipeline dynamics
Released
12.05.2017
Publisher
EPJ Web of Conferences
ISSN
2100-014X
Book
EPJ Web of Conferences
Volume
143
Number
02051
Pages from–to
1–10
Pages count
10
BIBTEX
@inproceedings{BUT137415,
author="Roman {Klas} and Vladimír {Habán} and Pavel {Rudolf},
title="Analysis of in-line check valve with respect to the pipeline dynamics",
booktitle="EPJ Web of Conferences",
year="2017",
volume="143",
number="02051",
month="May",
pages="1--10",
publisher="EPJ Web of Conferences",
issn="2100-014X"
}