Results 261 to 270 of about 5,274,833 (344)

Supercritical Flow in 45° Junction Manhole

Journal of Irrigation and Drainage Engineering, 2001
The flow in a junction manhole is analyzed using hydraulic modeling and a semiempirical approach. A large number of experiments was conducted to obtain insight in the complex hydraulic features of flows in either one or both of the approach junction branches.
DEL GIUDICE, GIUSEPPE, HAGER W. H.
openaire   +2 more sources

Steady supercritical flow in a straight-wall open-channel contraction

Journal of Hydraulic Research, 2018
Experimental and numerical modelling of steady flow in an open channel contraction is conducted. A two-dimensional depth-averaged model based on a finite volume solution of the shallow water equations is developed.
K. Abdo, C. Riahi-Nezhad, J. Imran
semanticscholar   +1 more source

Supercritical Flow over a Dentated Sill

Journal of Hydraulic Engineering, 2011
Experimental analysis concerning supercritical flow over a dentated sill in nonsubmerged conditions and the local scour downstream of this sill is presented. In this case, the energy dissipation is incomplete so that a scour control downstream of the hydraulic structure could be required.
Cancian Putton V., Marson C., FIOROTTO, Virgilio, CARONI, ELPIDIO   +3 more
openaire   +2 more sources

U-shaped channels along the side weir for subcritical and supercritical flow regimes

ISH Journal of Hydraulic Engineering, 2018
In this study, some relationships between discharge and geometrical and hydraulic characteristics are proposed using the two-dimensional conduit outlet theory in order to estimate the side weir discharge on U-shaped channels for subcritical and ...
H. Azimi, S. Shabanlou
semanticscholar   +1 more source

Supercritical flow in junction manholes under invert- and obvert-aligned set-ups

Journal of Hydraulic Research, 2018
Junction manholes are a part of urban drainage infrastructures. They merge inlet branches into an outlet branch. Former studies focused on junction flow by considering a specific manhole layout: identical diameters were assigned to the branches and the ...
G. Crispino, M. Pfister, C. Gisonni
semanticscholar   +1 more source

Mixed convection heat transfer of supercritical pressure R1234yf in horizontal flow: Comparison study as alternative to R134a in organic Rankine cycles

Energy, 2020
The low GWP working fluid of R1234yf is a prospective alternative to the conventional R134a used in organic Rankine cycles. As studies regarding the heat transfer of supercritical pressure R1234yf are rare, supercritical heat transfer experiments of ...
R. Tian, Yunting Xu, Lin Shi, Panpan Song, Mingshan Wei   +4 more
semanticscholar   +1 more source

A deep learning approach for efficiently and accurately evaluating the flow field of supercritical airfoils

, 2020
The efficient and accurate access to the aerodynamic performance is important for the design and optimization of supercritical airfoils. The aerodynamic performance is usually obtained by using computational fluid dynamics (CFD) methods or wind-tunnel ...
Haizhou Wu, Xuejun Liu, Wei An, Songcan Chen, Hongqiang Lyu   +4 more
semanticscholar   +1 more source

Novel Diversion Structure for Supercritical Flow

Journal of Hydraulic Engineering, 2013
AbstractIn urban drainage systems, it is usually necessary to split the storm water discharge among different sewer branches because of limited flow capacity of either hydraulic structures or sewer lines. For this purpose, sewer sideweirs and leaping weirs are generally used as diversion overflow structures.
DEL GIUDICE, GIUSEPPE, PADULANO, ROBERTA, CARRAVETTA, ARMANDO   +2 more
openaire   +2 more sources

Supercritical flow in bend with variable curvature radius

Journal of Hydraulic Research, 2018
In this study, a new variable curvature bend called the maximum probability bend was applied to supercritical flows. Based on the maximum probability bend, the geometric and mechanical continuity of supercritical flow were studied, and the regulation of ...
Zhong Tian, Can Ding, Wei Wang, Chun-Ni Zhang   +3 more
semanticscholar   +1 more source

The general supercritical heat transfer correlation for vertical up-flow tubes: K number correlation

, 2020
The objective of this paper is to present a general supercritical heat transfer (SHT) correlation for advanced power cycles. In textbooks, supercritical fluid is considered to have single-phase structure.
Bingguo Zhu, Jinliang Xu, Chenshuai Yan, Jian Xie   +3 more
semanticscholar   +1 more source