Analysis of convergent and divergent-convergent nozzle of waterjet propulsion by CFD simulation

Muhammad Arif Budiyanto, Jansen Novri, Muhammad Idrus Alhamid, Ardiyansyah

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

Waterjet propulsion is a type of propulsion system which is used widely by ship with high-speed operation and sailing in shallow waters. This system is constructed by pump and impeller that impels water passing through the inlet tube. Transport energy is occurred from pump to water, due to rotation of the impeller. Reduction of cross-sectional area at the end of nozzle increases water stream velocity, outcome increasing kinetic energy by a change of momentum because of an acceleration. The work of nozzle can be measured by efficiency and force output which is used to propel ship effectively. These parameters are related to nozzle geometry, as the main factor in this paper, supported by other factors such as pump pressure and stream velocity. The analysis of these parameters is presented by simulation in Ansys Fluent. From the results obtained the efficiency of a convergent nozzle is bigger than combination nozzle, with different values within 8% up to 12%. It suggests this type of nozzle is suitable for saving energy in waterjet propulsion system.

Original languageEnglish
Title of host publication10th International Meeting of Advances in Thermofluids, IMAT 2018 - Smart City
Subtitle of host publicationAdvances in Thermofluid Technology in Tropical Urban Development
EditorsArdiyansyah Yatim, Nasruddin, Muhammad Arif Budiyanto, Nyayu Aisyah, Muhamad Idrus Alhamid
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417908
DOIs
Publication statusPublished - 25 Jan 2019
Event10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018 - Kuta, Bali, Indonesia
Duration: 16 Nov 201817 Nov 2018

Publication series

NameAIP Conference Proceedings
Volume2062
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018
Country/TerritoryIndonesia
CityKuta, Bali
Period16/11/1817/11/18

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