Hydrodynamic Simulation of River Yamuna for Riverbed Assessment: A Case Study of Delhi Region

2006 ◽  
Vol 130 (1-3) ◽  
pp. 381-387 ◽  
Author(s):  
Ritesh Vijay ◽  
Aabha Sargoankar ◽  
Apurba Gupta
Keyword(s):  
Hydrodynamic Simulation ◽  
River Yamuna

An Efficient Direct Calculation Approach for Fatigue Assessment of Container Ships Concerning Bending and Warping Stresses

2014 ◽  
Author(s):  
Zhiyuan Li ◽  
Wengang Mao ◽  
Jonas W. Ringsberg
Keyword(s):  
Beam Theory ◽  
Direct Calculation ◽  
Fe Analysis ◽  
Hydrodynamic Simulation ◽  
Fatigue Assessment ◽  
Hull Girder ◽  
Torsional Loads ◽  
Warping Stress

Container ships are particularly susceptible to torsional loads. The distribution of torsion-induced warping stress in a container ship hull is more complicated and difficult to be expressed by beam theory formulas. In practice, finite element (FE) analysis is typically used to calculate the stress response to wave-loading conditions. However, it is time consuming to compute hull girder stresses for all relevant sea conditions through FE analyses. In this paper, an efficient and robust approach is proposed by combining beam theory and FE analyses in the determination of hull girder stresses. The parameters required by beam theory can be regressed through matching stress records from a FE analysis with the corresponding sectional and pressure loads from the hydrodynamic simulation. Stress records obtained using the proposed method are utilized in fatigue assessment of a case study container vessel. The results show that the accuracy of the regression approach is satisfactory compared with the full FE analyses.

scholarly journals Hydrodynamic simulation for urban drainage project: case study of Niterói

2006 ◽  
Author(s):  
E. A. Nascimento ◽  
F. C. B. Mascarenhas ◽  
A. H. P. Gomes ◽  
A. Verwey
Keyword(s):  
Urban Drainage ◽  
Hydrodynamic Simulation

‘Natural’ No More?

2018 ◽  
pp. 185-209
Author(s):  
Ravi Agarwal
Keyword(s):  
Public Discourse ◽  
Water Security ◽  
Flood Plains ◽  
The Public ◽  
Face Threats ◽  
River Yamuna ◽  
The City ◽  
Indian Cities

Rivers in fast-changing and expanding Indian cities have become contested natural features. Though central to such human settlements for long, which have depended on them for water security, livelihoods, biodiversity and cultural life, more recently they face threats from new urbanization of their flood plains, water pollution, and loss of biodiversity as the city encroaches upon them. Based on a case study of the river Yamuna flowing through the mega city of Delhi, the article brings forth the limited understanding of such natural features in urban planning and the public discourse in general. It explores in detail the changing landscape, its implication on the long-term sustainability and the wider implications of their destruction in urban settings.

scholarly journals A Case Study of Oil Spill Trajectory Forecast Model for Effective Clean Up

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Akshaya T R ◽  
Murali K ◽  
Kumaran Raju
Keyword(s):  
Oil Spill ◽  
Oil Spills ◽  
Forecast Model ◽  
Control Measures ◽  
Mitigation Measures ◽  
Hydrodynamic Simulation ◽  
After Effects ◽  
Marine Life ◽  
Forecast Models

Oil spills near the shore is an important environmental problem. The oil spill has to be contained in the early stages of the accident which otherwise would spread rapidly making it hard to control. The oil gets weathered affecting marine life and can get into the food chain and cause ecological distress. It also affects port and harbour activities. The after effects of the spill are mostly irreversible, so it is essential to follow proper control measures. It is essential to establish the spill forecast and movement for necessary prevention and mitigation measures. To do this, oil spill trajectory forecast models need to develop, that helps to provide the action plans to control the spill. A hydrodynamic simulation is carried out for the Ennore 2017 Chennai oil spill of India and corresponding trajectory analysis is performed. The results of the simulation will aid for effective cleanup measures to be followed in the region.

Sign in / Sign up

Export Citation Format

Share Document