Systematic cavitation tunnel tests for cavitation noise prediction of commercial ships using a standard series approach

Batuhan Aktas, Mehmet Atlar, Patrick Fitzsimmons, Weichao Shi, Serkan Turkmen, Noriyuki Sasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

This paper presents a small, but commercially representative, standard series of propeller models tested in the Emerson Cavitation Tunnel of Newcastle University using 3 members of the well-known Meridian standard series for commercial ship propellers. The members were chosen to test significant propeller design parameters from the noise radiation point of view including pitch to diameter ratio, blade area ratio, number of blades, operating conditions etc. The chosen members were tested both in open water condition as well as behind 3 different grades of axial wakes using 2D wake screens. Grading was made according to the BSRA (or BMT) wake non-uniformity criteria from the mildest to the most severe grade which results in more unstable cavitation to be experienced by a propeller. Based on the measured noise data the results were extrapolated to full-scale using an available in-house database for some real commercial vessels with the similar main particulars of the standard series of the propellers tested. The extrapolated data was compared with the average commercial shipping noise data to make a rough validation of the generated noise data. The experimental noise data presented in this study is expected to be a very useful mitigation tool that can be used to predict the noise levels in the early design stage of the commercial ship propellers, as long as the main particulars of the prospective propeller design would be in the range of the database provided.
LanguageEnglish
Title of host publicationThe 4th International Conference on Advanced Model Measurement Technologies for the Maritime Industry
Number of pages21
Publication statusPublished - 2015

Fingerprint

Propellers
Cavitation
Tunnels
Ships
Ship propellers
Freight transportation
Radiation
Water

Keywords

  • ship propellers
  • noise radiation point

Cite this

Aktas, B., Atlar, M., Fitzsimmons, P., Shi, W., Turkmen, S., & Sasaki, N. (2015). Systematic cavitation tunnel tests for cavitation noise prediction of commercial ships using a standard series approach. In The 4th International Conference on Advanced Model Measurement Technologies for the Maritime Industry
Aktas, Batuhan ; Atlar, Mehmet ; Fitzsimmons, Patrick ; Shi, Weichao ; Turkmen, Serkan ; Sasaki, Noriyuki. / Systematic cavitation tunnel tests for cavitation noise prediction of commercial ships using a standard series approach. The 4th International Conference on Advanced Model Measurement Technologies for the Maritime Industry. 2015.
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abstract = "This paper presents a small, but commercially representative, standard series of propeller models tested in the Emerson Cavitation Tunnel of Newcastle University using 3 members of the well-known Meridian standard series for commercial ship propellers. The members were chosen to test significant propeller design parameters from the noise radiation point of view including pitch to diameter ratio, blade area ratio, number of blades, operating conditions etc. The chosen members were tested both in open water condition as well as behind 3 different grades of axial wakes using 2D wake screens. Grading was made according to the BSRA (or BMT) wake non-uniformity criteria from the mildest to the most severe grade which results in more unstable cavitation to be experienced by a propeller. Based on the measured noise data the results were extrapolated to full-scale using an available in-house database for some real commercial vessels with the similar main particulars of the standard series of the propellers tested. The extrapolated data was compared with the average commercial shipping noise data to make a rough validation of the generated noise data. The experimental noise data presented in this study is expected to be a very useful mitigation tool that can be used to predict the noise levels in the early design stage of the commercial ship propellers, as long as the main particulars of the prospective propeller design would be in the range of the database provided.",
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Aktas, B, Atlar, M, Fitzsimmons, P, Shi, W, Turkmen, S & Sasaki, N 2015, Systematic cavitation tunnel tests for cavitation noise prediction of commercial ships using a standard series approach. in The 4th International Conference on Advanced Model Measurement Technologies for the Maritime Industry.

Systematic cavitation tunnel tests for cavitation noise prediction of commercial ships using a standard series approach. / Aktas, Batuhan; Atlar, Mehmet; Fitzsimmons, Patrick ; Shi, Weichao; Turkmen, Serkan; Sasaki, Noriyuki.

The 4th International Conference on Advanced Model Measurement Technologies for the Maritime Industry. 2015.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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T1 - Systematic cavitation tunnel tests for cavitation noise prediction of commercial ships using a standard series approach

AU - Aktas, Batuhan

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AU - Fitzsimmons, Patrick

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AU - Turkmen, Serkan

AU - Sasaki, Noriyuki

PY - 2015

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N2 - This paper presents a small, but commercially representative, standard series of propeller models tested in the Emerson Cavitation Tunnel of Newcastle University using 3 members of the well-known Meridian standard series for commercial ship propellers. The members were chosen to test significant propeller design parameters from the noise radiation point of view including pitch to diameter ratio, blade area ratio, number of blades, operating conditions etc. The chosen members were tested both in open water condition as well as behind 3 different grades of axial wakes using 2D wake screens. Grading was made according to the BSRA (or BMT) wake non-uniformity criteria from the mildest to the most severe grade which results in more unstable cavitation to be experienced by a propeller. Based on the measured noise data the results were extrapolated to full-scale using an available in-house database for some real commercial vessels with the similar main particulars of the standard series of the propellers tested. The extrapolated data was compared with the average commercial shipping noise data to make a rough validation of the generated noise data. The experimental noise data presented in this study is expected to be a very useful mitigation tool that can be used to predict the noise levels in the early design stage of the commercial ship propellers, as long as the main particulars of the prospective propeller design would be in the range of the database provided.

AB - This paper presents a small, but commercially representative, standard series of propeller models tested in the Emerson Cavitation Tunnel of Newcastle University using 3 members of the well-known Meridian standard series for commercial ship propellers. The members were chosen to test significant propeller design parameters from the noise radiation point of view including pitch to diameter ratio, blade area ratio, number of blades, operating conditions etc. The chosen members were tested both in open water condition as well as behind 3 different grades of axial wakes using 2D wake screens. Grading was made according to the BSRA (or BMT) wake non-uniformity criteria from the mildest to the most severe grade which results in more unstable cavitation to be experienced by a propeller. Based on the measured noise data the results were extrapolated to full-scale using an available in-house database for some real commercial vessels with the similar main particulars of the standard series of the propellers tested. The extrapolated data was compared with the average commercial shipping noise data to make a rough validation of the generated noise data. The experimental noise data presented in this study is expected to be a very useful mitigation tool that can be used to predict the noise levels in the early design stage of the commercial ship propellers, as long as the main particulars of the prospective propeller design would be in the range of the database provided.

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Aktas B, Atlar M, Fitzsimmons P, Shi W, Turkmen S, Sasaki N. Systematic cavitation tunnel tests for cavitation noise prediction of commercial ships using a standard series approach. In The 4th International Conference on Advanced Model Measurement Technologies for the Maritime Industry. 2015