Simulation of Sediment Transport model for Elengy Gas Terminal within the Port Qasim Navigation Channel in the Deltaic Creeks System of Indus Delta Pakistan
DOI:
https://doi.org/10.14738/aivp.91.8870Keywords:
Tidal current, Tidal constituents, Near shore waves, Numerical model, Wind stress.Abstract
Simulation of a numerical model as laboratory technique for understating the coastal processes is being used to reduce the survey budget while planning for coastal zone structural projects. In this study, 2D MIKE 21 model was simulated to compare the laboratory results with field data of complex Indus deltaic creeks system and exploring the possibilities to adopt the model for future studies. Indus Delta formed at the mouth of River Indus has been focused since last century for the industrial development activities and hydrodynamical parameters are the major factors the preparation of design of development project and sustainable deltaic environment. Tide and wind generated wave induced flow pattern were established using the model domain from Ormara Pakistan to Dewrka India. The results of simulation of HD model are in line with the observed data, but slower than the historical data due to extended industrialization around the navigation channel, whereas, MIKE 21 NSW simulation results are as per historical data. The results of the model simulation encouraging and suggest that numerical models as laboratory techniques can be used in the Indus Deltaic creek system to generate accurate environment.
References
(1) Kolla, V., Coumes, F., 1987. Morphology, internal structure, seismic stratigraphy, and sedimentation of Indus Fan. Am. Assoc. Pet. Geol. Bull.71, 650 – 677.
(2) Ahmed, F. M., Ghalib, S. A. and Hasnain, S. A. 1997; Avifauna of Tidal Link and adjoining area. Second Status Report. Zoological Survey Department.
(3) Naeem A S, A Ali, S Amjad, A D Shah, S M Tabrez, 2006; Impact of May 1999 Cyclone on the Coastal Wetlands of Pakistan. Pakistan Journal of Oceanography, Vol. 2(1):71 – 78.
(4) Peregrine, D H, 1998; Surf zone currents, Theoretical and Computational Fluid Dynamics, vol. 10, 295 – 309.
(5) Peregrine, D H, 1999; Large-scale vorticity generation by breakers in shallow and deepwater, European Journal Mechanics. B Fluids, vol. 18, 403 – 408.
(6) Buhler, O, 2000; On the vorticity transport due to dissipating or breaking waves in shallow-water flow, Journal of Fluid Mechanics, vo1. 407, 235 – 263.
(7) Abbott, M.B. et al., 1985; Modelling circulations in Depth-integrated flows. Part 1: The accumulation of the evidence J. Hyd. Res., Vol. 23, No.4.
(8) Large W G, and Pond S, 1891; Open ocean momentum flux measurements in moderate to strong winds. J. Phys. Oceanogr., 11: 324 – 336.
(9) Holthuijsen, L H, Booij, N & Herbers, 1989; T H C: A Prediction Model for Stationary, Short-crested Waves in Shallow Water with Ambient Currents. Coastal Eng. 13, 23-54.
(10) Johnson, H K, 1998; On modelling wind-waves in shallow and fetch limited areas using methods of Holthuijsen, Booij and Herbers. Journal of Coastal Research, 14(3) 917 – 932.
(11) Clift, P.D., Giosan, L., Blusztajn, J., Campbell, I.H., Allen, C.M., Pringle, M., Tabrez, A., Danish, M., Rabbani, M.M., Carter, A., Lückge, A., 2008; Holocene erosion of the lesser Himalaya triggered by intensified summer monsoon. Geology 36 (1), 79–82. http:// dx.doi.org/10.1130/G24315A.1.