We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Reducing the extent of vortices upstream of the sliding valve.
- Authors
Ebadzadeh, Parisa; Abbaszadeh, Hamidreza; Daneshfaraz, Rasoul; Norouzi, Reza
- Abstract
The purpose of this research is to provide a solution to eliminate the vortices formed upstream of the sliding valve. The effect of the threshold with the geometric shapes of semicylinder, cylinder, pyramid and rectangular cube in different widths of 5, 7, 10, 15 and 20 cm under the sliding valve was investigated experimentally. The results of this research showed that the entry of air into the fluid leads to the formation of the vortex phenomenon in the flow profile due to the water absorption of the slide valve from the surface layers. The conservation of angular momentum at the opening of the valve causes the combination of vertical and horizontal components of the velocity near the sliding valve. The results showed that placing the threshold under the horizontal sliding valve increases the horizontal velocity of the flow. Therefore, it turns the vortex with a larger diameter into end-line vortices. Due to the insignificant effect of threshold shape on vortices, its effect was ignored.
- Subjects
VALVES; HYDRAULIC engineering; ANGULAR momentum (Mechanics); THRESHOLD energy; WATER distribution
- Publication
Journal of Hydraulic Structures, 2024, Vol 10, Issue 2, p55
- ISSN
2345-413X
- Publication type
Article
- DOI
10.22055/JHS.2024.19042