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Chandramohan, P.
- Nature of the tide induced flow field along the East Coast of India
Abstract Views :857 |
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Authors
Susant Kumar Misra
1,
P. Chandramohan
2,
A. Satyanarayana Murty
3,
Jitendra Kumar Panigrahi
4,
R. Mahadevan
1
Affiliations
1 INDOMER Coastal Hydraulics (P) Ltd, 63 Gandhi Road, Alwar Thirunagar, Chennai – 600 087, IN
2 INDOMER Coastal Hydraulics (P) Ltd, 63 Gandhi Road, Alwar Thirunagar, Chennai – 600 087, IN
3 Department of Marine Sciences, Berhampur University, Berhampur – 760 007, IN
4 DHI – NTU Research Centre, DHI Water and Environment, Singapore – 128388, SG
1 INDOMER Coastal Hydraulics (P) Ltd, 63 Gandhi Road, Alwar Thirunagar, Chennai – 600 087, IN
2 INDOMER Coastal Hydraulics (P) Ltd, 63 Gandhi Road, Alwar Thirunagar, Chennai – 600 087, IN
3 Department of Marine Sciences, Berhampur University, Berhampur – 760 007, IN
4 DHI – NTU Research Centre, DHI Water and Environment, Singapore – 128388, SG
Source
International Journal of Oceans and Oceanography, Vol 7, No 1 (2013), Pagination: 57-71Abstract
The objective of the present study is to simulate the tide induced flow field in the Bay of Bengal (BOB) using MIKE 21 HD module of DHI. Later these currents that were measured in the coastal region between Kodikarai in Tamilnadu and Digha in West Bengal along the East Coast of India close to nearly 50 m water depth were also compared with that of the simulated. Between Nagapattinam (Lat. 10.76º N) and Paradip (Lat. 20.26º N), over a distance of nearly 1000 km (~10º of latitude), the tides propagate from deep water to the coast with their fronts nearly parallel to the coast. The variation of the tidal ranges between Nagapattinam to Paradip was found to be from 0.62 m to 1.87 m. The simulated current magnitudes in BOB were observed to increase slowly from south to north (i.e. 0.075 m/s at Nagapattinam to 0.249 m/s at Paradip), as the magnitudes of M2 and S2 tidal constituents increase from Nagapattinam to Paradip. The highest tidal currents of the order of 0.4 m/s were found at the Head of the Bay. Similarly, the directions of tide induced currents during the flood and the ebb phases of tides were observed to remain almost same at all stations from Nagapattinam to Paradip along the ECI.Keywords
Naval Hydrographic Charts, Tidal Constituents, MIKE 21 Hydrodynamic Module, MIKE 21 Toolbox, Mike 0 Tool box, ECI.References
- Carter RWG (1988) Coastal environments: an introduction to the physical, ecological and cultural systems of coastlines. Academic Press, London
- Chandramohan P, Misra SK, Dhivya B (2010) Dispersion study of return water from power plants discharged off Ennore, DHI Seminar & MKE User group meet.
- DHI – MIKE 21 HD MODULE User’s guide and reference Manual (1990) Danish Hydraulic Institute, Denmark.
- DHI – MIKE 21 HD MODULE User guide and scientific Manual (2009) Danish Hydraulic Institute, Denmark.
- Doodson AT, Warbrug HD (1941) Admiralty Manual of tides. Her Majestry’ s stationary office, London
- Fraser FL (1976) Naval Hydrographic chart No 354, Published at the naval hydrographic office, Dehra dun, Government of India.
- Fraser FL (1977) Naval Hydrographic chart No 355, Published at the naval hydrographic office, Dehra dun.
- Fraser FL (1976) Naval Hydrographic chart No 356, Published at the naval hydrographic office, Dehra dun, Government of India.
- Fraser FL (1976) Naval Hydrographic chart No. 357, Published at the naval hydrographic office, Dehra dun, Government of India.
- Srinivasan KR (2001) Naval Hydrographic chart No 353, Published at the naval hydrographic office, Dehra dun.
- Srinivasan KR (2002) Naval Hydrographic chart No 352, Published at the naval hydrographic office, Dehra dun, Government of India.
- Global ocean tidal model, DHI, Denemark.
- Indian Tide table 2010, Survey of India.
- Masselink G, Turner I (1999) The effects of tides on beach morphodynamics In: Handbook of beach and shoreface morphodynamics. In: Short AD (ed) Handbook of beach and shore face morphodynamics. Chichester, UK, pp 379– 380.
- Misra SK (2011) Studies on nearshore currents along the southern part of the East Coast of India. Ph.D. thesis, Department of Marine Science, Berhampur University, India.
- Misra SK (2012) Presume and real bathymetry off Bay of Bengal region using Mike 21 HD module, Asian Journal of Current Engineering and Maths,Vol-6 383 - 387.
- Murty T S, Henry RF (1983) Tides in the Bay of Bengal, Journal of Geophysical Research, VOL. 88, NO. CI0, PAGES 6069-6076.
- Panigrahi JK, Satish Kumar V, Tripathy JK (2010) Littoral drift by alongshore flow at Visakhapatnm – East Coast of India. Journal of Hydro-environment Research.
- Mishra P, Patra SK, Bramha S, Mohanty PK, Panda US, Rao VR, Ramanamurthy MV (2010) Wave characteristic and tidal regime off Gopalpur, east coast of India and its implication in coastal erosion. In: Proceedings of the joint Indo-Brazil workshop on coastal process and modeling relevant to understanding shoreline changes, Chennai, India, pp 22-32
- Mishra P, Patra SK , Ramanamurthy MV, Mohanty PK, Panda US (2011) Interaction of monsoonal wave, current and tide near Gopalpur, east coast of India, and their impact on beach profile: a case study, Journal of Nat Hazards, Springer, DOI 10.1007/s11069-011-9826-4
- Surface Modification of Titanium-Titanium Boride (Ti-TiB) Composite Using Low Traverse Speed Laser Beam
Abstract Views :164 |
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Authors
Affiliations
1 Dr. Mahalingam College of Engg. and Tech., Pollachi 642 003, Tamilnadu, IN
2 P.S.G. College of Technology, Coimbatore 641 004, Tamilnadu, IN
3 Sri Krishna College of Engineering, Coimbatore 641 008, Tamilnadu, IN
1 Dr. Mahalingam College of Engg. and Tech., Pollachi 642 003, Tamilnadu, IN
2 P.S.G. College of Technology, Coimbatore 641 004, Tamilnadu, IN
3 Sri Krishna College of Engineering, Coimbatore 641 008, Tamilnadu, IN
Source
Journal of Surface Science and Technology, Vol 24, No 1-2 (2008), Pagination: 57-64Abstract
The Titanium-Titanium boride (Ti-TiB) composite was subjected to surface modification using laser surface treatment. A significant increase in surface hardness to 980 VHN, relative to 513 VHN for the untreated material occurred with a laser energy input of about 30 kJ/m, achieved with 20 and 30 mm/s traverse speed. This increase in hardness corresponds to increase in surface volume fraction of TiB whiskers to about 65 % at about 30 kJ/m and above.Keywords
Laser Treatment, Metal Matrix Composites, X-Ray Diffraction and Scanning Electron Microscopy.- Formation and Effects of Secondary Phases in Duplex Stainless Steel Weld Metals
Abstract Views :157 |
PDF Views:0
Authors
Affiliations
1 Sri Krishna College of Engineering and Technology, Coimbatore- 641004, IN
2 PSG College of Technology, Coimbatore-641004, IN
1 Sri Krishna College of Engineering and Technology, Coimbatore- 641004, IN
2 PSG College of Technology, Coimbatore-641004, IN
Source
Manufacturing Technology Today, Vol 3, No 1 (2004), Pagination: 11-14Abstract
Duplex stainless steels were developed in the early thirties in Sweden and in France. The first duplex steels had about 65% of ferrite in the solution annealed condition and the high ferrite content resulted in rather bad mechanical properties in the Heat affected Zone after welding. Secondary phases play an important role in determining the properties of duplex stainless steel. In this paper, a brief discussion is made about the formation and effect of various phases like sigma (σ), cubic (χ), R-, α1 G-, τ and laves phase along with the acceptance criteria for secondary phases.- Composite Materials-Fabrication and Automation
Abstract Views :154 |
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The next step in composite material fabrication is the paperless factory, where automation is being developed and applied in handling, storage and retrieval of frozen materials through automated cutting, kitting and lay up. Assembled parts would be carried automatically to autoclaves for cutting on an overhead monorail or other conveyor.
Authors
Affiliations
1 Dept. of Mechatronics Engg., Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641008, IN
2 Dept. of Mechanical Engg., Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641008, IN
3 Mechanical Sciences, Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641008, IN
1 Dept. of Mechatronics Engg., Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641008, IN
2 Dept. of Mechanical Engg., Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641008, IN
3 Mechanical Sciences, Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641008, IN
Source
Manufacturing Technology Today, Vol 1, No 6 (2002), Pagination: 5-10Abstract
This paper discusses the various fabrication techniques and their automation being used in composite material fabrication. Research and development efforts have made some of the structures amenable to computer aided design and numerical control fabrication. About 70% of total cost of Boron and graphite preliminary composites is spent on fabricating into end shapes. Automation could reduce this cost by 50%. Automated processing of tapes has been widely investigated to reduce lay-up costs. One such approach is using automated facilities at the material supplier's plant to handle alternative materials, thus reducing handling in the processor's facility. These concepts include wide tapes [up to 1.2m], uniweave fabric, and fabrics of conventional construction which are unrolled, automatically cut into full or partial plies, sorted into kits, and then laid up onto a tool.The next step in composite material fabrication is the paperless factory, where automation is being developed and applied in handling, storage and retrieval of frozen materials through automated cutting, kitting and lay up. Assembled parts would be carried automatically to autoclaves for cutting on an overhead monorail or other conveyor.
Keywords
SMC, PMC, LCM, Prepreg, Autoclave.- Analysis of Sheet Metal Forming using Liquid Media
Abstract Views :188 |
PDF Views:0
Authors
Affiliations
1 Dept of Production Engg, Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641 008, IN
2 Dept of Mechanical Engg, Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641 008, IN
3 Mechanical Sciences, Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641 008, IN
1 Dept of Production Engg, Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641 008, IN
2 Dept of Mechanical Engg, Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641 008, IN
3 Mechanical Sciences, Sri Krishna College of Engineering and Technology, Kuniamuthur, Coimbatore-641 008, IN