Abstract
Investigation of hydro-acoustic performance of marine propellers has a great interest nowadays. In design stage, the hydro-acoustic performance of marine propellers should be determined precisely. This study addresses the effects of different flow conditions on the performance of DTMB 4119 model propeller operating in open water condition. Three different configurations have been investigated. Two of them have been modelled by taking the shaft into account. The opposite flow directions have been analysed in these configurations. The third configuration is without the shaft. The hydro-acoustic properties of these three configurations have been examined numerically. The numerical method is based on computational fluid dynamics (CFD) technique which discretizes (Reynolds Averaged Navier Stokes) RANS equations. The hydro-acoustic analyses have then been carried out by solving unsteady RANS with Ffowcs William Hawkings (FW-H) equations. The numerical results have been compared with another study in the literature.
| Original language | English |
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| Publication status | Published - Apr 2018 |
Keywords
- hydro-acoustic performance
- DTMB 4119 propeller
- computational fluid dynamics
- hydro-acoustic analyses