The effect of basin geometry on gravitational vortex hydropower

Warjito, Budiarso, C. R. Christopher, D. Adanta

Research output: Contribution to journalConference articlepeer-review

10 Citations (Scopus)


This study aims to determine the shape of the conical basin that is suitable to be applied to the gravitational vortex hydropower (GVHP) by observing the shifting location of the core of water vortex. Three types of basin that will be observed are: a basin with cylindrical height of 20 mm (type A); a basin with conical height of 20 mm and cone angle of 60° (type B); and a basin with conical diameter of 50 mm, conical height of 20 mm, and cone angle of 45° (type C). There are two methods which were used, the analytical method was used to determine geometric parameters which affect water vortex formation, and then the numerical method was performed using computational fluid dynamics (CFD) with multiphase, transient-SST, and steady-state condition. Highest velocity was achieved with conical basin type B which will form a strong water vortex formation. If the velocity gets higher, the pressure will also drop. Velocity gets higher gradually until it reaches the outlet, which in turn causing pressure to drop gradually as well. This will create pressure differences which will cause a suction effect and form a strong water vortex. Thus, the conical basin (type B) was concluded to be a basin which creates a good water vortex formation.

Original languageEnglish
Article number012081
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - 5 Jun 2020
Event5th International Conference on Mechanical Engineering Research 2019, ICMER 2019 - Kuantan, Malaysia
Duration: 30 Jul 201931 Jul 2019


Dive into the research topics of 'The effect of basin geometry on gravitational vortex hydropower'. Together they form a unique fingerprint.

Cite this