Evolution of bed-forms due to associated wave turbulence over a sloping sand bed similar to shoaling zone of sea coast – An experimental approach

Mondal, Kaushik; Chaudhuri, Susanta; Das, Vikas K.; Debnath, Koustuv; Mazumder, B.S.

doi:10.1016/j.oceaneng.2024.117778

Ocean Engineering

2024

DOI: 10.1016/j.oceaneng.2024.117778

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Evolution of bed-forms due to associated wave turbulence over a sloping sand bed similar to shoaling zone of sea coast – An experimental approach

Kaushik Mondal,

Susanta Chaudhuri,

Vikas K. Das

et al.

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2024

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Cited by 2 publications

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Turbulence phenomena due to pure wave over the submerged horizontal cylinder

Roy,

Barman,

Singh

et al. 2024

J Braz. Soc. Mech. Sci. Eng.

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Turbulence phenomena due to pure wave over the submerged horizontal cylinder

Roy,

Barman,

Singh

et al. 2024

J Braz. Soc. Mech. Sci. Eng.

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Effects of submergence ratio on flow around a circular pier in combined wave–current flows using particle image velocimetry

Aravind,

Eldho,

Mazumder

2024

Physics of Fluids

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The present study illustrates an experimental investigation of flow hydrodynamics in the vicinity of a submerged circular pier across various submergence levels under only current and wave–current combined flow conditions. The instantaneous velocity data are collected using particle image velocimetry for three distinct frequencies of waves to determine the influence of wave superimposition on the current-induced turbulence parameters. The distribution of phase averaged turbulence quantities, such as mean velocities, Reynolds shear stress, turbulent kinetic energy, flow patterns, and vorticity analysis by Q-criterion, are presented. The results provide insight into the impacts of wave frequency and submergence ratio on the formation of horseshoe vortices, trailing vortex, and reverse flow zones. From the results it is observed that a decrease in the submergence level of the structure causes the formation of strong horseshoe vortices and reverse flow zones in the absence of waves. Also, an increase in wave frequency intensifies the turbulence kinetic energy at the upstream of the pier and eddy generation behind the pier. The present findings highlight the effects of pier submergence and wave characteristics, such as frequency, wave height, and wave period, on flow patterns and turbulent flow characteristics and aid in the design of marine structures. Furthermore, experimental data serve as a valuable resource for validating theoretical or mathematical models related to combined wave–current environments.

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Evolution of bed-forms due to associated wave turbulence over a sloping sand bed similar to shoaling zone of sea coast – An experimental approach

Cited by 2 publications

References 63 publications

Turbulence phenomena due to pure wave over the submerged horizontal cylinder

Turbulence phenomena due to pure wave over the submerged horizontal cylinder

Effects of submergence ratio on flow around a circular pier in combined wave–current flows using particle image velocimetry

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