Modelling Velocity Distribution in 3-D for Nun River, Niger Delta Nigeria
Journal Title: Current Journal of Applied Science and Technology - Year 2017, Vol 20, Issue 6
Abstract
In this study, hydrodynamics and sediment concentration equations of partial differential in 3-dimensions were solved using finite difference methods, the Crank Nicolson procedure to predict both sediment concentration and velocity profile of Nun River. The computer software (EKU2.8) which is a modification of the Navier Stoke’s equations was employed for discretization of Nun River stretch of 2,000 m into 2,245 rectangular meshes and simulation of the river’s flow velocity distribution. The code was validated by using the field water current measurements obtained from a selected stretch of the river. Average predicted velocities of 0.85 m/s, 1.542 m/s and 0m/s compared favorably with 0.8m/s, 1.475 m/s and 0.09m/s obtained from field measurement for upstream, midstream and downstream boundaries. The predicted results have approximate correlation coefficients of 0.96 for velocity distribution using Pearson product-moment method. The model proved very useful in predicting the velocity distribution of Nun River; higher versus lower velocities at inner and outer bends, with resultant effect of erosion and sediment deposition accordingly. The result of this study may be considered an important contribution to the improvement of sediment and erosion risk management.
Authors and Affiliations
Desmond U. Nwoko, Ify L. Nwaogazie, Charles C. Dike
Keywords
Related Articles
- EP ID EP318599
- DOI 10.9734/BJAST/2017/33352
- Views 79
- Downloads 0
Modeling the Determinants of Fertility Differentials among Women of Child Bearing Age in Ghana
Aims: To examined the factors which determine fertility levels, their trend, and how they affect fertility. Study Design: The design used was Survey Design. Place and Duration of Study: The study used secondary data from...
Challenges and Prospects of Enforcement of Environmental Laws in Port Harcourt Metropolis Rivers State, Nigeria
This study examined the challenges and prospects of enforcement of environmental laws in Port Harcourt Metropolis, Rivers State. For the purpose of data collection, the research survey or descriptive method was adopted....
Novel Classification for Tracking Techniques Maximum Power Point in Solar Photovoltaic Systems
This paper gives an overview and classification of methods maximum power point tracking (MPPT) controller is fundamental to acquire the maximum power from a solar array in the photovoltaic systems as the PV power module...
Design and Construction of a Solar Water Heater for Environmental Sustainability
This research work involves the design and construction of a solar water heating system with 2.3 m2 solar collector area proposed to extract enough solar energy to raise the temperature of 0.075 m3 of water by...
Biofortified Cereal Crops: A Sustainable Approach for Food and Nutritional Security
Introduction: A stealthier form of deficiency is known as hidden hunger which is caused due to the intake of cheap food and having the characteristic of fulfilness but actually lacked in essential vitamins and minerals....