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All Journal Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Ahmed, Yasser Mohamed
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Aerospace Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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The Perspective of Hydropower as Renewable Energy Behrouzi, Fatemeh; Abdul Malik, Adi Maimun; Ahmed, Yasser Mohamed; Nakisa, Mehdi
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 11 No 1 (2014): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v11i1.477

Abstract

According to environmental impact of fossil fuel, growth population and demand for energy, it is compulsory to replace the fossil fuel with renewable energy. Hydropower as a renewable energy possesses a lot of potential to provide energy and it is essential to improve the kinetic energy devices to harness the energy of water.
Stratified Oil-Water Two-Phases Flow of Subsea Pipeline Alias, Adib Zulhilmi Mohd; Koto, Jaswar; Ahmed, Yasser Mohamed; Junaidi, Abd Khair
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 14 No 1 (2014): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v14i1.468

Abstract

Oil-water two-phase flow in 0.0254m horizontal pipe is simulated using FLUENT 6.2. The stratified flow regime is modeled using Volume of Fluid (VOF) with turbulent model RNG k-?. Grid independent study has been conducted to decide mesh size for solution accuracy and optimum computational cost. The simulation is performed in time-dependent simulation where oil and water are initially separated by patching the region base on difference in density. Observation on the effect of velocity to the pressure gradient was also simulated. Flow velocity at 0.2, 0.5, 0.8 and 1.1 m/s with same volume fraction for each phase with appropriate multiphase model and turbulence model are presented.
Co-Authors Abdul Malik, Adi Maimun Alias, Adib Zulhilmi Mohd Behrouzi, Fatemeh Junaidi, Abd Khair Koto, Jaswar Nakisa, Mehdi