Sökning: id:"swepub:oai:DiVA.org:ltu-78230" >
Numerical Study of ...
Numerical Study of the Winter–Kennedy Flow Measurement Method in Transient Flows
-
- Baidar, Binaya (författare)
- Luleå tekniska universitet,Strömningslära och experimentell mekanik
-
- Nicolle, Jonathan (författare)
- Institut de recherche d’Hydro-Québec (IREQ), Varennes, QC J3X 1S1, Canada
-
- Gandhi, Bhupendra K. (författare)
- Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247667, India
-
visa fler...
-
- Cervantes, Michel (författare)
- Luleå tekniska universitet,Strömningslära och experimentell mekanik
-
visa färre...
-
(creator_code:org_t)
- 2020-03-11
- 2020
- Engelska.
-
Ingår i: Energies. - : MDPI. - 1996-1073. ; 13:6
- Relaterad länk:
-
https://doi.org/10.3...
-
visa fler...
-
https://www.mdpi.com...
-
https://urn.kb.se/re...
-
https://doi.org/10.3...
-
visa färre...
Abstract
Ämnesord
Stäng
- This paper explores the possibility of using the Winter–Kennedy (WK) method for transient flow rate measurement in hydraulic turbines. Computational fluid dynamic (CFD) analysis of a numerical model of an axial turbine was carried out for accelerating and decelerating flows. Those were obtained by linearly opening and closing of the guide vanes, respectively, while retaining the inlet pressure constant during the simulations. The behavior of several WK configurations on a cross-sectional plane and along the azimuthal direction of the spiral casing was studied during the transients. The study showed that there are certain WK configurations that are more stable than others. The physical mechanism behind the stability (or instability) of the WK method during transients is presented. Using the steady WK coefficient obtained at the best efficiency point (BEP), the WK method could estimate the transient flow rate with a deviation of about 7.5% and 3.5%, for accelerating and decelerating flow, respectively.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Nyckelord
- Winter–Kennedy
- flow rate
- transient flow
- hydropower
- CFD
- Strömningslära
- Fluid Mechanics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
-
Energies
(Sök värdpublikationen i LIBRIS)
Till lärosätets databas