Reducing the extent of vortices upstream of the sliding valve
Author(s):
Article Type:
Research/Original Article (دارای رتبه معتبر)
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 semi-cylinder, cylinder, pyramid and rectangular cube in different widths of 5, 7, 10, 15 and 20 cm under the sliding valve was investigated experimentaly. 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.
Keywords:
Language:
English
Published:
Journal of Hydraulic Structures, Volume:10 Issue: 2, Summer 2024
Pages:
55 to 61
https://magiran.com/p2721761
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!