Effect of bottom friction on tidal hydrodynamics along Gulf of Khambhat, India

Kumar, S. Sathish; Balaji, R.

doi:10.1016/j.ecss.2015.01.012

Cited by 23 publications

(5 citation statements)

References 10 publications

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“…The tidal range is the largest as compared to the other part of the Indian coastline because of its complex shape and sudden seabed variations on the head. The maximum tidal current velocities exceed 3 m/s at some locations of this gulf (SatheeshKumar and Balaji, 2015; Sathish Kumar and Balaji, 2015). The complex circulation pattern with strong tidal currents will bring the sediments brought up by the rivers in suspension and makes the water always turbid.…”

Section: Study Areamentioning

confidence: 92%

“…India has a long coastline of about 7500 km; there are several bays, gulf and inlet estuaries along the coastline, which create variation in currents, and tidal currents in some of these regions are strong enough to convert kinetic energy into electrical energy; a few potential locations are reportedly feasible for tidal energy extraction (Souvik et al, 2016). The maximum estimated tidal range is about 11 m in the Gulf of Khambhat and 8 m in the Gulf of Kachchh, and the associated tide-induced current velocity reaches up to 3 m/s (SatheeshKumar and Balaji, 2015; Sathish Kumar and Balaji, 2015). Whereas, the maximum tidal range along the Ganges Delta in the Sundarbans region is about 5 m with an average range of about 2.97 m (Sovik et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Estimation of tidal current energy along the Gulf of Khambhat using three-dimensional numerical modeling

Satheeshkumar

Balaji

2017

The International Journal of Ocean and Climate Systems

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A finite difference-based three-dimensional modeling has been conducted to evaluate tidal power density at different locations along the Gulf of Khambhat, India. The model uses the Navier-Stokes transport equation in three-dimensional plane under the assumption of shallow water and Boussinesq. The model results were validated with observed water levels and currents available in the literature. The Gulf has strong and varying currents and associated circulation patterns, especially in the northern region, due to complex bathymetry. The current velocities and corresponding power densities were computed for different vertical layers of the entire model domain. The maximum tidal current velocities are found in the northern region along the narrowing part of the Gulf. The estimated values are 2.6 and 1.5 m/s during spring and neap tidal cycles, respectively. Then, the energy flux approximation method has been used to estimate the tidal power densities along the gulf spatially and temporally. The estimated maximum available potential is about 3 and 0.7 kW/m 2 during spring and neap at two arbitrary point locations, respectively.

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Section: Study Areamentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Estimation of tidal current energy along the Gulf of Khambhat using three-dimensional numerical modeling

Satheeshkumar

Balaji

2017

The International Journal of Ocean and Climate Systems

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“…where the coefficient, C is given by laws from Manning, Chezy and others (see for example [3]). We emphasise that this model can only be derived systematically for the 3D equations of fluid flow in the case where the channel is rectangular.…”

Section: Outlinementioning

confidence: 99%

Hydrodynamics and Pollutant Distribution in the Mahi Estuary

Panda

Ockendon

et al. 2023

Preprint

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It has been observed that pollutants mainly cause pollution in the Narmada river and the estuary, which is driven there during high and low tides. The modelling presented here concentrates on phenomena affecting the distribution of pollutants in the Gulf of Khambhat and the Estuaries. The model used for the tidal water movement in the Gulf is the shallow water equations with turbulent friction. A simplified linearised version of these equations is used in two idealised geometries to explore why the tidal amplitude and velocity can increase so significantly up the Gulf, and both resonance effects and the rapid narrowing of the Gulf are identified as being contributors. The wave elevation and velocity are described by a coupled system of partial differential equations that are spatially discretized and solved using an ODE solver.

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“…The local model is an implementation of TELEMAC-MASCARET (Hervouet, 2007), in its 2D version, to a domain that includes the estuary of the Rı o de la Plata and its continental shelf (Figure 3, central panel). TELEMAC has been successfully applied in several estuarine dynamics studies (Briere et al, 2007;Jones and Davies, 2008;Guillou & Chapalain, 2012;Huybrechts et al, 2012;Huybrechts & Villaret, 2013;Luo et al, 2013;Sathish Kumar & Balaji, 2015). The vertically integrated twodimensional hydrodynamic TELEMAC-2D model solves the momentum and continuity equations using finite elements on unstructured meshes.…”

Section: Hydrodynamic Models Setupmentioning

confidence: 99%

Advances in sea state modeling and climate change impacts

2023

Frontiers Research Topics

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Effect of bottom friction on tidal hydrodynamics along Gulf of Khambhat, India

Cited by 23 publications

References 10 publications

Estimation of tidal current energy along the Gulf of Khambhat using three-dimensional numerical modeling

Estimation of tidal current energy along the Gulf of Khambhat using three-dimensional numerical modeling

Hydrodynamics and Pollutant Distribution in the Mahi Estuary

Advances in sea state modeling and climate change impacts

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