Pengaruh Geometri Basin Terhadap Aliran Vortex: Kajian pada Basin Conical, Conical Convex dan Silinder dengan CFD
DOI:
https://doi.org/10.37859/jst.v11i1.7187
Abstract
This study aims to evaluate the influence of basin geometry on the formation and characteristics of vortex flow using Computational Fluid Dynamics (CFD). Three types of basin geometries were investigated: cylindrical, conical, and conical convex. CFD simulations were conducted to observe the velocity distribution, and vortex flow patterns generated by each basin. The results indicate that the conical basin produces vortex flows with higher intensity compared to the cylindrical and conical convex basins. The conical basin demonstrated a more focused flow pattern and higher vortex concentration around the central axis, contributing to enhanced vortex formation efficiency. Although the cylindrical and conical convex basins also generated vortex flows, they exhibited a more dispersed velocity distribution and less stable vortices. These findings provide important insights for the design and optimization of vortex turbine systems, particularly in the context of renewable energy applications.
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References
Nugraha, Ihfaz Nurdin Eka, Waluyo, Sahrial “Penerapan dan Analisi Pembangkit Listrik Tenaga PikoHidro dengan Turbin Propeller OpenFlume TC 60 dan Generator Sinkron Satu Fasa 100 VA di UPI Bandung,”Jurnal Reka Elkomika, Vol 1, No.4, pp.328-338, 2013.
M. Nosare, W. Lin, M.Khatamifar, A Review of Gravitational Water Vortex Hydro Turbine System for Hydropower Generation, “ Energies 2023, 16, 5394. pp. 2-39.
Mulligan, S.; Hull, P. “Design and Optimisation of a Water Vortex Hydropower Plant,” Bachelor’s Thesis, Institute of Technology, Sligo, Ireland, 2010.
Dhakal, S.; Timilsina, A.B.; Dhakal, R.; Fuyal, D.; Bajracharya, T.R.; Pandit, H.P.; Amatya, N.; Nakarmi, A.M, “Comparison of cylindrical and conical basins with optimum position of runner: Gravitational water vortex power plant”. Renew. Sustain. Energy Rev. 2015, 48, pp. 662–669.
Dhakal, S.; Nakarmi, S.; Pun, P.; Thapa, A.B.; Bajracharya, T.R, “Development and testing of runner and conical basin for gravitational water vortex power plant,” J. Inst. Eng. 2014, 10, 140–148.
Ruiz Sánchez, A.; Sierra Del Rio, J.A.; Guevara Munoz, A.J.; Posada Montoya, J.A. “Numerical and experimental evaluation of concave and convex designs for gravitational water vortex turbine,” J. Adv. Res. Fluid Mech. Therm. Sci. 2019, 64, 160–172.
Ruiz Sánchez, A.; Sierra Del Rio, J.A.; Guevara Munoz, A.J.; Posada Montoya, J.A. Numerical and experimental evaluation of concave and convex designs for gravitational water vortex turbine. J. Adv. Res. Fluid Mech. Therm. Sci. 2019, 64, 160–172.
Jiang, Y.; Raji, A.O.; Raja, V.; Wang, F.; Al-bonsrulah, H.A.Z.; Murugesan, R.; Ranganathan, S. Multi-disciplinary optimizations of small-scale gravitational vortex hydropower (SGVHP) system through computational hydrodynamic and hydro-structural analyses. Sustainability 2022.
Velásquez, L.; Posada, A.; Chica, E. Surrogate modeling method for multi-objective optimization of the inlet channel and the basin of a gravitational water vortex hydraulic turbine. Appl. Energy 2023.
Velásquez, L.; Posada, A.; Chica, E. Optimization of the basin and inlet channel of a gravitational water vortex hydraulic turbine using the response surface methodology. Renew. Energy 2022, 187, 508–521.

















