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Das, Subhasish
- Bed Shear Stresses Past a Flat Plate under Clear Water Equilibrium Scour State
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Authors
Subhasish Das
1,
Ranajit Midya
1,
Buddhadeb Chatterjee
1,
Ranadeep Ghosh
1,
Rajib Das
1,
Asis Mazumdar
1
Affiliations
1 School of Water Resources Engineering, Jadavpur University, Kolkata–700032, West Bengal, IN
1 School of Water Resources Engineering, Jadavpur University, Kolkata–700032, West Bengal, IN
Source
Journal of the Association of Engineers, India, Vol 84, No 1-2 (2014), Pagination: 27-36Abstract
The three-dimensional flow field at a flat plate (side facing the approaching flow) under clear water equilibrium scour regime was experimentally measured using an acoustic Doppler Velocimeter (ADV) in a laboratory tilting flume. Reynolds stresses at different azimuthal planes are computed. The bed shear stresses are determined from the Reynolds stresses and velocity gradients at different azimuthal planes (0°, i.e., at the upstream axis of symmetry, 45° and 90°). The critical bed shear stresses on the sloping beds are also computed with the help of Shields' diagram. The findings of the present study were also compared with the results obtained by previous researchers.Keywords
Turbulent Flow, Threshold Condition, Clear Water Scour, Reynolds’ Stress.- Optimized Hydraulic Design of an Water Distribution Network at West Medinipur in West Bengal:A Case Study
Abstract Views :459 |
PDF Views:1
Authors
Affiliations
1 School of Water Resources Engineering, Jadavpur University, Kolkata, IN
1 School of Water Resources Engineering, Jadavpur University, Kolkata, IN
Source
Journal of the Association of Engineers, India, Vol 89, No 1-2 (2019), Pagination: 19-32Abstract
Directly drinkable water supplied to the inhabitants of any rural zone is met for the most part from the groundwater sources. A large number ofthe tubewells end up dry amid summer causing genuine water emergency. The Public Health Engineering Directorate (PHED) under Government of West Bengal decided to execute a scheme for withdrawing and delivering surface water from River Rupnarayan to supply drinkable water to the residents of Panskura- II block of East Medinipur district in West Bengal. In this study a command area zone of close piped network from the above mentioned scheme has been chosen. During the analysis, WaterGEMS software was used. The entire network system consists about 341 numbers of pipes and 289 numbers of junctions. The study is concentrated to develop a model of pipe network of Zone I of Panskura Block II under PHED water supply scheme based on WaterGEMS software, to determine the velocity and headlosses in pipes alongwith pressure at nodes in modeled system and to optimize the number and locations of airvalves in order to exhaust away the entrapped air in the pipelines due to geographical undulations. About twelve optimized air valves were suggested for the whole network.Keywords
Air Valves, Losses in Pipelines, Accuracy, WaterGEMS, Pressure, Undulations.References
- Das, S., Study of pipeline network system and temporal decay of chlorine for the water treatment plant at Dakshin Raipur, West Bengal, M.E. Thesis, School of Water Resources Engineering, Jadavpur University, Kolkata, India, 2006.
- Das, S., Roy, P.K. and Mazumdar, A., Analysis of pipe flow and headloss of a modeled network based on EPANET in a water treatment plant at Raipur, West Bengal, Journal of the Institution of Public Health Engineers, India, Vol.2008-09, No.3, pp.21-28,2008.
- Liana, I. and Vlad, P., INFOWORKS WS and EPANET V2- Modelling the water distribution networks, University Politehnica of Bucharest Scientific Bulletin, Vol.70, No.4, pp.91-102, 2008.
- Koppel, T. and Vassiljev, A., Calibration of a model of an operational water distribution system containing pipes of different age, Advances in Engineering Software, Vol.40, No.8, pp.659-664, 2009.
- Arunkumar, M. and Nethaji, M.V.E., Water Demand Analysis of Municipal Water Supply using EPANET Software, International Journal of Applied Bioengineering, Vol.5, No.1, pp.9-19, 2011.
- Chandramouli, S. and Malleswararao, P., Reliability based optimal design of a water distribution network for municipal water supply, International Journal of Engineering and Technology, Vol.3, No.1, pp.13-19, 2011.
- Angela, M. and Angus, R.S., Correction of the EPANET inaccuracy in computing the efficiency of variable speed pumps, Journal of Water Resources Planning and Management, Vol.139, No.4, pp.456-459, 2012.
- Mukherjee, B., Pipeline Design And Analysis of Distribution Network of Dhapa Water Treatment Plant, KMC by EPANET and HAMMER Software, M.E. Thesis, School of Water Resources Engineering, Jadavpur University, Kolkata, India, 2012.
- Mukherjee, B., Das, S. and Mazumdar, A., Comparison of pipeline hydraulic analysis between EPANET and HAMMER softwares, International Journal of Advances in Science and Technology, Vol.4, No.6, 52-63, 2012.
- Saha, B.K., Transient Analysis of Purulia Piped Water Supply Line using HAMMER Software, M.E. Thesis, School of Water Resources Engineering, Jadavpur University, Kolkata, India, 2016.
- Saha, S., Analysis of Pipeline Alignment of a Thermal Power Plant Based on Pipeline Identification with Help of Geoinformatics Tools (PIGMI) and HAMMER, M.E. Thesis, School of Water Resources Engineering, Jadavpur University, Kolkata, India, 2010.
- Das, S., Mukherjee, B. and Mazumdar, A., Analysis of hammer head at increased flow demand in pipe networks: a case study, International Review of Mechanical Engineering, Vol.7, No.4, pp.757-766, 2013.
- Mazumdar, A., Jaman, H. and Das, S., Modification of Hunter’s curve in the perspective of water conservation, Journal of Pipeline Systems Engineering and Practice, Vol.5, No.1, pp.04013007, 2013.
- Wu, P., Lai, Z., Wu, D. and Wang, L., Optimization research of parallel pump system for improving energy efficiency, Journal of Water Resources Planning and Management, Vol.141, No.8, pp.04014094, 2015.
- Mukherjee, B., Das, S. and Mazumdar, A., Simulation of composite piped water supply by EPANET and LOOP softwares: a case study, Journal of the Institution of Public Health Engineers, India, Vol.45, No.1, pp.44-54, 2017.
- Sarkar, P.K., Extended Period Simulations of Pipeline Distribution Network of Garfa Boosting Station by Hammer and WaterGEMS Softwares, M.E. Thesis, School of Water Resources Engineering, Jadavpur University, Kolkata, India, 2014.
- Mukherjee, B., Das, S., Mazumdar, A. and Sarkar, P., Management in real time operation of drinking water pipeline distribution network: a case study, Proceedings of the 47th IWWAAnnual Convention, pp.298-303, 2015.
- Mukherjee, B., Das, S. and Mazumdar, A., Transient analysis of a pipeline network for drinking purpose inAssam, India, Journal of the Institution of Public Health Engineers, India, Vol.2014-15, No.4, pp. 26-32, 2015.
- Ulanicki, B., Bounds, P.L.M., Ranee, J.P. and Reynolds, L., Open and closed loop pressure control for leakage reduction, Journal of Urban Water, Vol.2, No.2, pp.105-114,2000.
- Das, S., Mukherjee, B. and Mazumdar, A., Comparison of outcomes through EPANET and LOOP softwares using a gravity flow water supply network at East Medinipur in West Bengal, Journal of the Indian Chemical Society, Vol.95, No.3, pp.313-324,2018.
- Stress Analysis of Smart Support for Process Pipeline Systems by CAESAR Software
Abstract Views :440 |
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Authors
Affiliations
1 School of Water Resources Engineering, Jadavpur University, Kolkata, IN
1 School of Water Resources Engineering, Jadavpur University, Kolkata, IN
Source
Journal of the Association of Engineers, India, Vol 90, No 1-2 (2020), Pagination: 5-14Abstract
Process pipeline system designs are governed by Industrial or International Codes and Standards to transport the fluid, steam or air through the employed pipe system in plants of many industries. Such piping arrangements consist of components like pipes, different valves, flanges, different fittings, varying elbows, different gaskets, and further specialties. The code AS ME B31.3 for process design piping has been used throughout this study. This code is applied in refineries of petroleum, oil and gas industries, chemical plants, textile plants, semi-conductor plants, paper mills, and many other industrial plants. Here the objective is to clearly explain the flexibility characteristics, elemental forces and displacements and also the stress analysis that have been kept in agreeable limits as per typical standards for major load conditions like hydrostatic - HYD, sustained - SUS, operating - OPE and experimental - EXP cases. The study was conducted on nitrogen pipeline network of a process plant at Durgapur, West Bengal in India.Keywords
Process Pipelines, Piping Support, Loading Conditions, Stresses, Deflections.References
- Mazumdar, A., Jaman, H. and Das, S., Modification of Hunter’s Curve in the Perspective of Water Conservation, Journal of Pipeline Systems Engineering and Practice, Vol. 5, No. 1, pp. 04013007(1-9), 2013.
- Satyanarayana, T.V.V., Sreenivasulu, V. and Kiran, U.C., Modelling and stress analysis of flare piping, International Journal of Latest Trends in Engineering and Technology, Vol. 2, No. 1, pp. 219-225, 2013.
- Mandi, S., Stress analysis with critical review of supports for a steam pipeline of Sagardighi thermal power plant using Caesar Software, M.E. Thesis, School of Water Resources Engineering, Jadavpur University, Kolkata, India, 2015.
- Mondal, S., Stress analysis of steam pipelines of 2x100 MW Captive power plant by Caesar Software, M.E. Thesis, School of Water Resources Engineering, Jadavpur University, Kolkata, India, 2015.
- Mukherjee, B., Das, S. and Mondal, S., Behaviour of Stresses in Steam Pipelines of a Captive Power Plant under Various Loading Conditions: A Case Study, 103rd Indian Science Congress Conference, ISCA, University of Mysore, India, 2016.
- Mukherjee, B., Das, S. and Mazumdar, A., Stress analysis of smart support system for a steam pipeline of Sagardighi Thermal Power Plant, West Bengal, India, International Journal of Innovative and Emerging Research in Engineering, Vol. 4, No. 1, pp. 137146, 2017.
- Mukherjee, B., Pipeline design and analysis of distribution network of Dhapa water treatment plant, KMC by EPANET and HAMMER software, M.E. Thesis, School of Water Resources Engineering, Jadavpur University, Kolkata, India, 2012.
- Chatterjee, B., Pipeline transient analysis of Mejia Thermal Power Station, DVC by HAMMER Software, M.E. Thesis, School of Water Resources Engineering, Jadavpur University, Kolkata, India, 2011.
- Mukherjee, B., Das, S. and Mazumdar, A., TransientAnalysis of a Pipeline Networkfor Drinking Purpose in Assam, India, Journal of the Institution of Public Health Engineers, India, Vol. 2014-2015, No. 4, pp. 26-32, 2014.
- Alvarado, M., Rodr'yguez-Toral, M.A., Rosas, A. and Ayala, S., Decision-making on pipe stress analysis enabled by knowledge-based systems, Knowledge and Information Systems, Vol. 12, No. 2, pp. 255-278, 2007.
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- Sadd, M.H. and Avent, R.R., Stress Analysis and Stress Index Development for a Trunnion Pipe Support, Journal of Pressure Vessel Technology, Vol. 104, No. 2 , pp. 73-78, 1982.
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- Hinnant, C., Paulin, T., Becht, C. and Lock, W.S., Experimental Evaluation of the Markl Fatigue Methods and ASME piping stress Intensification factor, ASME 2014 Pressure Vessels and Piping Conference, Anaheim, California, USA, Vol. 3, pp.V003T03A025, 2014.
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- Bae, K.D., Kim, C.G., Kim, S.J., Lee, H.J. and Kim, Y.J.,AStudy of the Stress Intensity Factor and Crack opening Displacement Relationship Between Uniform Thickness pipe Bends and Non-Uniform Thickness Bends, ASME 2016 Pressure Vessels and Piping Conference, British Columbia, Canada, Vol. 6A, pp. V06AT06A022, 2016.
- Azuma, K., Li, Y., Hasegawa, K. and Shim, D.J., Stress Intensity Factor Solutions for Circumferential Surface Cracks With Large Aspect Ratios in Pipes Subjected to Global Bending, ASME 2016 Pressure Vessels and Piping Conference, Vancouver, British Columbia, Canada, pp. V01AT01A012, 2016.
- Transformative Insights Into Water Distribution Network Modeling and Optimization Through Epanet At Ranibandh and Khatra Blocks in Bankura
Abstract Views :76 |
Authors
Affiliations
1 Doctoral Research Fellow, School of Water Resources Engineering, Jadavpur University, Kolkata 700032, IN
2 Associate Professor, School of Water Resources Engineering, Jadavpur University, Kolkata 700032, IN
1 Doctoral Research Fellow, School of Water Resources Engineering, Jadavpur University, Kolkata 700032, IN
2 Associate Professor, School of Water Resources Engineering, Jadavpur University, Kolkata 700032, IN