Discussion of “Experimental Studies on Flow over Labyrinth Weir” by B. V. Khode, A. R. Tembhurkar, P. D. Porey, and R. N. Ingle

Gupta, S. K.; Singh, Vijay P.

doi:10.1061/(asce)ir.1943-4774.0000588

Cited by 6 publications

(2 citation statements)

References 6 publications

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“…The difference is that they also considered the effect of the wall radiation impedance of the resonant cavity in the study. Yuan Jianping et al used the acoustic finite element method to numerically analyze and test the acoustic characteristics of Helmholtz resonators [9,10]. The effect of the wall elasticity of the resonant cavity on the resonance frequency was not mentioned in the study, which was one of the reasons why the theoretically predicted value of the resonance frequency was inconsistent with the test result.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of Acoustic Performance of Water-filled Helmholtz Resonator with the Effect of Elastic Cavity Walls

Wu²

2023

J. Phys.: Conf. Ser.

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Water-filled Helmholtz resonator is a primary means to reduce the hydrodynamic noise of pump and valve in naval vessels. The predicted acoustic performance of water-filled Helmholtz resonators with the effect of elasticity of cavity walls using finite element method is compared with theoretical and experimental results in references, which demonstrated the applicability and accuracy of the finite element numerical method. And then, the effect of thickness and materials of cavity walls on resonance frequency and transmission loss of resonators is discussed, including the comparison of rigid and elastic cavity walls predictions simultaneously. The results of the discussion in this paper show that the acoustic performance of water-filled Helmholtz resonators is influenced by the elasticity of cavity walls to a great extent, which must be taken into consideration in the process of design.

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Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of Acoustic Performance of Water-filled Helmholtz Resonator with the Effect of Elastic Cavity Walls

Wu²

2023

J. Phys.: Conf. Ser.

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“…While Emiroglu et al (2010) found that the labyrinth weirs are a good choice as side weirs to increase the discharge. There are several types of studies for labyrinth weirs that contributed to providing knowledge regarding hydraulic behaviour and design methods for this type of weir, such as (Lux 1984;Wormleaton & Soufiani 1998;Wormleaton & Tsang 2000;Emiroglu & Baylar 2005;Tullis et al 2005;Tullis et al 2007;Crookston & Tullis 2011a, 2011b, 2012cKhode et al 2011;Kumar et al 2011;Dabling et al 2013;Gupta & Singh 2013;Akoz et al 2014;Crookston et al 2014;Bahrebar et al 2016;Baeimani & Bajestan 2015;Kanyabujinja 2015;. Table 1 shows a summary of some previous studies related to labyrinth weirs.…”

Section: Introductionmentioning

confidence: 99%

A review of hydraulic performance and design methods of labyrinth weirs

Idrees

Al-Ameri

2022

Water Supply

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Labyrinth weirs are complex hydraulic structures. It has been widely used as a water regulator and to increase discharge in channels and spillway dams. The Labyrinth weirs are an economical and effective method to pass large floods. In addition, it is used to reduce the requirements of the structural footprint. These features make it an interesting and appropriate choice to increase the capacity of discharge. Several factors affect the discharge capacity and the hydraulic performance of the labyrinth weirs, including water level to crest height ratio, angle of sidewalls, apex width, conveyance channel conditions, and vertical aspect ratio. However, the present paper aims to summarise the most relevant knowledge of the hydraulic characteristics of the labyrinth weirs in the preceding articles. The importance of the present study is to provide a better understanding of how these weirs operate, in addition to which future studies deserve further investigation. The results demonstrated that some parameters still need further investigation. Also, energy dissipation over the labyrinth weir needs further investigation with different weir geometry. Furthermore, the results showed that common design equations did not take into account all parameters affecting labyrinth weir performance, including geometries, flow conditions, site conditions, and scale effect.

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Numerical modeling of free and submerged labyrinth weir flow for a large sidewall angle

Carrillo

Matos

Lopes³

2019

Environ Fluid Mech

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Discussion of “Experimental Studies on Flow over Labyrinth Weir” by B. V. Khode, A. R. Tembhurkar, P. D. Porey, and R. N. Ingle

Cited by 6 publications

References 6 publications

Finite Element Analysis of Acoustic Performance of Water-filled Helmholtz Resonator with the Effect of Elastic Cavity Walls

Finite Element Analysis of Acoustic Performance of Water-filled Helmholtz Resonator with the Effect of Elastic Cavity Walls

A review of hydraulic performance and design methods of labyrinth weirs

Numerical modeling of free and submerged labyrinth weir flow for a large sidewall angle

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