3D CFD validation of invert trap efficiency for sewer solid management using VOF model

Mohsin, Mohammad; Kaushal, D. R.

doi:10.1016/j.wse.2016.06.006

Cited by 19 publications

(6 citation statements)

References 13 publications

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“…The free surface is the interface between the water and the air. To solve the gasliquid two-phase flow problem, the volume of fluid (VOF) model has been proposed by Hirt and Nichols in 1981, which is widely used in many fields [10][11][12][13]. The function F, which represents the volume fraction of the liquid phase within the grid domain, is used in the VOF model to track the position of the free surface [14][15].…”

Section: Governing Equationsmentioning

confidence: 99%

Study on the Influence of Toilet Siphon Pipe Shape on Flushing Performance

Wang

et al. 2020

J. Eng. Technol. Sci.

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Section: Governing Equationsmentioning

confidence: 99%

Study on the Influence of Toilet Siphon Pipe Shape on Flushing Performance

Wang

et al. 2020

J. Eng. Technol. Sci.

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“…The sediment transport in sewers and open drains reduces their discharging capacity (Mohsin and Kaushal, 2015, 2016a, 2016b. Rapid urbanization demands more water usage, which generates a lot of wastewater to be drained efficiently by sewers and open drains.…”

Section: Introductionmentioning

confidence: 99%

“…To solve the sediment problem in a channel, the sediment ejectors, excluders, extractors or sediment trapping devices have been developed. They are being used at suitable places along the reach of the channel to minimize sediment content in the channel to ensure the smooth and optimum functioning of the channel system (Mohsin and Kaushal, 2015, 2016a, 2016b, 2017. Invert trap is one of the trapping devices used to trap the sediments flowing into a sewer or storm water drainage channel (Chebbo et al, 1996;Kaushal et al, 2012;Mohsin and Kaushal, 2015, 2016a, 2016b, 2017Kaushal, 2008a, 2008b).…”

Section: Introductionmentioning

confidence: 99%

“…They are being used at suitable places along the reach of the channel to minimize sediment content in the channel to ensure the smooth and optimum functioning of the channel system (Mohsin and Kaushal, 2015, 2016a, 2016b, 2017. Invert trap is one of the trapping devices used to trap the sediments flowing into a sewer or storm water drainage channel (Chebbo et al, 1996;Kaushal et al, 2012;Mohsin and Kaushal, 2015, 2016a, 2016b, 2017Kaushal, 2008a, 2008b). A trap is a type of bucket provided at the bottom of channel in which the sediments fall and gets trapped.…”

Section: Introductionmentioning

confidence: 99%

“…They concluded that trap with inlet angle of 90 o and outlet angle of 34 o has the highest sediment trap efficiency. Mohsin and Kaushal (2015, 2016a, 2016b, 2017 Literature review reveals that investigators have considered the shape of particle as spherical. They have not considered the actual shape of the particle.…”

Section: Introductionmentioning

confidence: 99%

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Performance analysis of rectangular SIT (sediment invert trap) for stormwater drainage system

Beg

Kaushal

2022

Journal of Hydrology and Hydromechanics

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Deposition of solid particles in the stormwater sewers reduces the discharging capacity, causing inundation. A sediment invert trap (SIT) is an option that can be installed at the bottom of the stormwater sewer drain to intercept the flowing solid particles. In the present study performance of rectangular SIT were analyzed experimentally and computationally. Variation of particle trapping efficiency of rectangular SIT fitted at the bottom of the open channel flume has been studied under the interpretation of invert trap depth, flow depth, particle size, particle shape, and slot width. To predict the flow field and trap efficiency of a rectangular invert trap, 2D-VOF-DPM-CFD modelling has been carried out using ANSYS Fluent 2020 R1 software. For velocity field determination, the volume of fluid (VOF) model was used along with realizable k-є turbulence model. To predict particle trap efficiency, stochastic discrete phase model (DPM) was utilized. From experimental study and CFD modeling, it has been found that the particle trap efficiency of rectangular invert trap varied with change in the depth of invert trap, sediment size, shape factor, depth of flow and slot width. Consideration of particle shape in terms of shape factor in the modeling of solid-phase through DPM validated the CFD predicted results with those obtained experimentally with mean absolute percent error (MAPE) of 2.68%, 3.99% and 6.6% for sewer solid size ranges SS1, SS2, and SS3 respectively at all flow depths for both slot widths considered in this study.

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