Determination of Discharge Coefficients for Hydraulic Sparger Design

Gregg, Walter Boyd; Werth, David; Frizzell, Carl

doi:10.1115/1.1762902

Cited by 8 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a core reference, Smith and Walker (1923) primarily reported the fundamental principles of orifice-flow hydraulics. Studies conducted by Gregg et al (2003) and Werth et al (2005) on orifices in pressurized pipes for lateral outflow showed that the discharge coefficient (C d ) is a function of the approach velocity and the ratio of the orifice diameter (d) to the pipe diameter (D), in addition to the pressure in the pipe. Bryant (2006) investigated the flow pattern upstream of orifices in close proximity to the bed and surface; however, no comprehensive study of the discharge coefficient for orifices in riser pipes was carried out.…”

Section: Brief Review: Literature To Present Studymentioning

confidence: 99%

Discussion of “Discharge Coefficients for Orifices Cut into Round Pipes” by Alex J. McLemore, John S. Tyner, Daniel C. Yoder, and John R. Buchanan

Yıldırım

2015

J. Irrig. Drain Eng.

View full text Add to dashboard Cite

Section: Brief Review: Literature To Present Studymentioning

confidence: 99%

Discussion of “Discharge Coefficients for Orifices Cut into Round Pipes” by Alex J. McLemore, John S. Tyner, Daniel C. Yoder, and John R. Buchanan

Yıldırım

2015

J. Irrig. Drain Eng.

View full text Add to dashboard Cite

“…The discharge coefficient for orifices has been studied extensively, but almost exclusively for the case of the orifice in a flat wall. Studies of orifice flow in a circular pipe are typically limited to cases of pressurised flow through a sparger or manifold (Gregg et al, 2003;Werth et al, 2005). In a sparger the flow exits the pipe, as opposed to the riser pipe outlet structure considered herein, where the fluid enters the pipe.…”

Section: Introductionmentioning

confidence: 99%

Investigation of detention pond outflow characteristics

Prohaska

Khan

Kaye³

2010

Proceedings of the Institution of Civil Engineers - Water Manag

View full text Add to dashboard Cite

Detention ponds are important units of drainage system for managing excess rainfall and runoff quality. To design detention ponds the outflow characteristic must be accurately known. Perforated riser pipes are a popular outlet control structure for stormwater detention basins. This study examines the discharge characteristics of a circular orifice cut into a vertical riser pipe as an outflow mechanism for the detention pond. In particular, the effects of the head above the orifice, the size of the orifice and the size of the riser pipe on the discharge coefficient are evaluated. A physical model is built and various size riser pipes are installed in the tank to simulate a detention basin. The discharge through the orifice is determined by measuring the rate of change of the water level in the tank against time. A water level against volume drained calibration is used to find the rate of change of volume over time, and hence the discharge coefficient. The study shows that the discharge coefficient increases as the head and the ratio of the orifice diameter to pipe diameter decreases. It is found that the hydrostatic pressure variation across the orifice at the small head has a minimum impact on the discharge. A generalised function is developed to estimate discharge under a varying head over the orifice and for different ratios of orifice diameter to riser pipe diameter, which can be used for the design of detention ponds.

show abstract

A computational fluid dynamics‐based method to investigate and optimize novel liquid distributor

Xue

Zhao

et al. 2022

AIChE Journal

View full text Add to dashboard Cite

Liquid distributors have an important influence on packed towers' hydrodynamics and mass transfer performances. This work has designed a narrow‐trough liquid distributor with stepped baffle plates to regulate liquid flow. The liquid mainstream is diverted layer by stepped baffles to realize the uniform distribution of liquid. The relationship between liquid flow and the baffle plates arrangement is studied by computational fluid dynamics (CFD) simulation. Furthermore, we put forward a CFD‐based structural optimization scheme to arrange baffle plates in an arc shape, which leads to a uniform and stable flow of each distribution orifice in the range of liquid spray density of 5–120 m3·(m2·h)−1. The simulation results agree with experiments, which proved that the novel liquid distributor has excellent performance. Compared with the traditional trough liquid distributor, the novel liquid distributor can provide more liquid drip points, more gas‐phase channels, higher operating flexibility, and take up less space.

show abstract

Determination of Discharge Coefficients for Hydraulic Sparger Design

Cited by 8 publications

References 2 publications

Discussion of “Discharge Coefficients for Orifices Cut into Round Pipes” by Alex J. McLemore, John S. Tyner, Daniel C. Yoder, and John R. Buchanan

Discussion of “Discharge Coefficients for Orifices Cut into Round Pipes” by Alex J. McLemore, John S. Tyner, Daniel C. Yoder, and John R. Buchanan

Investigation of detention pond outflow characteristics

A computational fluid dynamics‐based method to investigate and optimize novel liquid distributor

Contact Info

Product

Resources

About