Montana Flume Flow Corrections under Submerged Flow

Willeitner, Ryan P.; Barfuss, Steven L.; Johnson, Michael C.

doi:10.1061/(asce)ir.1943-4774.0000434

Cited by 6 publications

(4 citation statements)

References 5 publications

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“…Ref. [36] studied the Parshall flume and the Montana flume, which have the same calibration procedures under normal free-flow conditions, and tested their calibrations under submerged flows.…”

Section: Experimental Studiesmentioning

confidence: 99%

Application of Numerical and Experimental Modeling to Improve the Efficiency of Parshall Flumes: A Review of the State-of-the-Art

et al. 2022

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One of the primary steps in managing the flow in an open channel is determining its properties. Empirical equations are developed to provide further information regarding the flow in open channels. Obtaining such experimental equations is expensive and time consuming; therefore, alternative solutions have been sought. Over the last century, the Parshall flume, a static measuring device with no moving parts, has played a significant role in measuring the flow in open channels. Many researchers have focused their interest on studying the application of Parshall flumes in various fields like irrigation and wastewater management. Although various scholars used experimental results to enhance the rating equation of the Parshall flume, others used an alternative source of data to recalibrate the height–discharge relation equation using numerical simulation. Computational Fluid Dynamic (CFD) software is becoming popular nowadays as computing hardware has advanced significantly within the last few decades, making it possible to go beyond the limited resolution that was experienced in the past. Multiple CFD models, depending on their availability, either open-source or commercially licensed, have been used to perform numerical simulations on different configurations of flumes, especially Parshall flumes, to produce water level results. Regarding various CFD tools that have been used, i.e., FLOW-3D, Ansys Fluent, or OpenFOAM, after precise calibration with experimental data, it has been determined that the output is reliable and can be implemented to the actual scenarios. The benefit of using this technique to produce results is the ability of the CFD approach to adjust the initial conditions, like flow velocity or structural geometry, where necessary. With respect to channel size and the condition of the site where the flume is located, the choices are narrowed to the specific Parshall flume suitable to the situation. It is not always possible to select the standard Parshall flume; therefore, engineers provide some modification to the closest flume size and provide a new rating curve to produce accurate flowrates. This review has been performed on the works of a number of scholars who targeted the application of numerical simulation and physical experimental data in Parshall flumes to either enhance the existing rating equation or propose further modification to the structure’s geometry.

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Section: Experimental Studiesmentioning

confidence: 99%

Application of Numerical and Experimental Modeling to Improve the Efficiency of Parshall Flumes: A Review of the State-of-the-Art

et al. 2022

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“…Furthermore, eld experiments have shown that the accuracy of this approach is dependent on the submergence ratio (ratio of downstream to upstream depth) (Willeitner et al 2012;Samani 2017;Goel et al 2017). It has been reported that a possible error of up to 60% in the accuracy of umes could occur if the submergence ratio exceeds its limit and ow transitions from free ow to submerged condition.…”

Section: Introductionmentioning

confidence: 99%

“…It has been reported that a possible error of up to 60% in the accuracy of umes could occur if the submergence ratio exceeds its limit and ow transitions from free ow to submerged condition. (Willeitner et al 2012;Goel et al 2015;Heyrani et al 2022).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Submergence Limit and Head Loss in Flow Measuring Flumes Using Flow-3d Predictive Modeling

Fard

Samani

2023

Preprint

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Flow measurement is an important aspect of water management. Flumes are proven to be an effective method of measuring flow in channels. The accuracy of these flumes is dependent on the produced flume flow submergence ratio, limit, and head loss which are difficult to measure in the field. The aim of this manuscript was to evaluate the use of CFD platform FLOW-3D software for measuring these parameters in an experimental flume with flow rates of 0.112, 0.169, and 0.320 m^3/s named Flow 1, Flow 2, Flow 3 using CFD design of a flume with an elevated downstream bottom. FLOW-3D software was calibrated using published experimental (R^2 > 0.98 and RMSE < 1.5 cm). Submergence limit was measured at 0.21, 0.24, and 0.25, for Flow 1, Flow 2, and Flow 3, respectively. The maximum head loss when the submergence ratio exceeded its limit was measured at 32.5% for Flow 1.

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Evaluation of Submergence Limit and Head Loss in Flow Measuring Flumes Using Flow-3D Predictive Modeling

Mostafazadeh Fard,

Samani

2024

Int J Civ Eng

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Montana Flume Flow Corrections under Submerged Flow

Cited by 6 publications

References 5 publications

Application of Numerical and Experimental Modeling to Improve the Efficiency of Parshall Flumes: A Review of the State-of-the-Art

Application of Numerical and Experimental Modeling to Improve the Efficiency of Parshall Flumes: A Review of the State-of-the-Art

Evaluation of Submergence Limit and Head Loss in Flow Measuring Flumes Using Flow-3d Predictive Modeling

Evaluation of Submergence Limit and Head Loss in Flow Measuring Flumes Using Flow-3D Predictive Modeling

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