Experimental investigation on optimization of invert trap configuration for sewer solid management

Kaushal, D. R.; Thinglas, T.; Tomita, Yoshihiro; Kuchii, Shigeru; Tsukamoto, Hiroshi

doi:10.1016/j.powtec.2011.08.029

Cited by 15 publications

(3 citation statements)

References 14 publications

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“…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 suggested rectangular invert trap with trapezoidal base with lids on both sides as the most efficient trap configuration with highest sediment retention ratio based on 3D modelling and experimental results. Kaushal et al (2012) experimentally and numerically investigated the sediment retention ratios for a number of variable parameters of flow, particle and trap geometry for each trap in a rectangular channel. For numerical 2D and 3D modelling, they used CFD based modelling using FLUENT software along with fixed lid model.…”

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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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Beg

Kaushal

2022

Journal of Hydrology and Hydromechanics

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“…The volume of fluid (VOF) begins to have a relevant role in the investigation and prediction of open channel flow (Khazaee and Mohammadiun, 2010) as an element to represent the complete biphasic three-dimensional fluid dynamics. Kaushal et al (2012) and Mohsin and Kaushal (2016) have validated and optimized hydraulic processes with inverted traps, in which the results adequately describe the surface conditions of free water, velocity and static pressure for a variable flow as well as geometric parameters that resemble the experimental conditions, allowing us to determine the efficiencies of these hydraulic structures. Ghanbari and Heidarnejad (2020) have simulated the three-dimensional flow field over the piano key weirs to study the flow hydraulics and compare the discharge rates.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional Numerical Evaluation of Hydraulic Efficiency and Discharge Coefficient in Grate Inlets

Zambrano

González

Tequia

2022

EREM

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Floods are one of the causes of ground movement and displacement, and due to rapid urbanization and urban growth may occur more frequently than before. The characteristics of an urban drainage system can define the occurrence and extent of flooding, where catchment elements have a determining role. This document presents the numerical investigation of the hydraulic inlet efficiency and the discharge coefficient of seven types of grate inlets. The FLOW-3D® simulator is used to test the gratings at a full scale, under flow rates of Q = 24, 34.1, 44, 100, 200 and 300 L/s, preserving the configuration of the experimental prototype with longitudinal slopes of 1.0%, 1.5% and 2.0% and a fixed cross slope, for a total of 126 models. Based on the results, hydraulic inlet efficiency curves and discharge coefficients are constructed for each type and a longitudinal slope condition. The results are adjusted with empirical formulations proposed in other investigations, serving to verify the results of physical testing of prototypes.

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Three-dimensional computational fluid dynamics (volume of fluid) modelling coupled with a stochastic discrete phase model for the performance analysis of an invert trap experimentally validated using field sewer solids

Mohsin

Kaushal

2017

Particuology

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Experimental investigation on optimization of invert trap configuration for sewer solid management

Cited by 15 publications

References 14 publications

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

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

Three-dimensional Numerical Evaluation of Hydraulic Efficiency and Discharge Coefficient in Grate Inlets

Three-dimensional computational fluid dynamics (volume of fluid) modelling coupled with a stochastic discrete phase model for the performance analysis of an invert trap experimentally validated using field sewer solids

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