Investigating the effect of geometric parameters on hydrodynamic and hydro-acoustic performances of submerged propellers
The hydro-acoustic analysis of submerged propellers is an important issue in marine industries, which is examined to reduce the vibrations and noise level of vessels alongside reducing fuel consumption and improving hydrodynamic efficiency. B-series propellers are common propellers whose hydrodynami...
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| Veröffentlicht in: | Applied ocean research 2021-09, Vol.114, p.102773, Article 102773 |
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| creator | Razaghian, A.H. Ebrahimi, A. Zahedi, F. Javanmardi, M.R. Seif, M.S. |
| description | The hydro-acoustic analysis of submerged propellers is an important issue in marine industries, which is examined to reduce the vibrations and noise level of vessels alongside reducing fuel consumption and improving hydrodynamic efficiency. B-series propellers are common propellers whose hydrodynamic and acoustic investigation through applying suitable rake, and skew angle can offer proper results to designers for enhancing the hydrodynamic performance and reducing noise. In this study, a model of the five-bladed B-series propeller with the normal skew angle is chosen. The effects of geometric parameters, including the rake angle, skew angle, geometric pitch ratio, and the number of blades on the hydrodynamic and acoustic performance of propeller, are numerically investigated under non-cavitating conditions. In the numerical analysis, RANS equations are solved using the finite volume method through k-ε turbulence modeling, and the hydrodynamic characteristics of the propellers are evaluated at different flow conditions. In addition, the noise of propellers is calculated using FW-H formulation in defined receivers. For validation of the numerical results, the model of propeller is tested in the K23 cavitation tunnel at the Sharif University of Technology. Results show that the numerical results are in good agreement with experimental results and other numerical studies. Moreover, the effects of changes of geometric parameters on the hydrodynamic and acoustic performance of the propeller are investigated. According to the results, the far-field can be defined relative to the propeller's radius (R). By increasing the rake angle, geometric pitch ratio, and blade numbers individually, the hydrodynamic efficiency decreases in each advance ratio. The overall SPL downstream of the propeller is higher than the rotation plane, and the five and 7-blade propellers can provide desirable SPL acoustically in this propeller type. |
| doi_str_mv | 10.1016/j.apor.2021.102773 |
| format | Article |
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B-series propellers are common propellers whose hydrodynamic and acoustic investigation through applying suitable rake, and skew angle can offer proper results to designers for enhancing the hydrodynamic performance and reducing noise. In this study, a model of the five-bladed B-series propeller with the normal skew angle is chosen. The effects of geometric parameters, including the rake angle, skew angle, geometric pitch ratio, and the number of blades on the hydrodynamic and acoustic performance of propeller, are numerically investigated under non-cavitating conditions. In the numerical analysis, RANS equations are solved using the finite volume method through k-ε turbulence modeling, and the hydrodynamic characteristics of the propellers are evaluated at different flow conditions. In addition, the noise of propellers is calculated using FW-H formulation in defined receivers. For validation of the numerical results, the model of propeller is tested in the K23 cavitation tunnel at the Sharif University of Technology. Results show that the numerical results are in good agreement with experimental results and other numerical studies. Moreover, the effects of changes of geometric parameters on the hydrodynamic and acoustic performance of the propeller are investigated. According to the results, the far-field can be defined relative to the propeller's radius (R). By increasing the rake angle, geometric pitch ratio, and blade numbers individually, the hydrodynamic efficiency decreases in each advance ratio. The overall SPL downstream of the propeller is higher than the rotation plane, and the five and 7-blade propellers can provide desirable SPL acoustically in this propeller type.</description><identifier>ISSN: 0141-1187</identifier><identifier>EISSN: 1879-1549</identifier><identifier>DOI: 10.1016/j.apor.2021.102773</identifier><language>eng</language><publisher>Barking: Elsevier Ltd</publisher><subject>Acoustics ; Cavitation ; Finite volume method ; FW-H equations ; Geometric parameters ; Hydro-acoustic ; Hydrodynamic ; Hydrodynamics ; Industry ; Investigations ; Noise ; Noise reduction ; Numerical analysis ; Parameters ; Propellers ; Sound pressure level ; Turbulence</subject><ispartof>Applied ocean research, 2021-09, Vol.114, p.102773, Article 102773</ispartof><rights>2021 Elsevier Ltd</rights><rights>Copyright Elsevier BV Sep 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c258t-1f7bf359a33c563f0e6bbb3ac2b2cc31ed7ddf94bff52311ab1adeffb24ecc603</citedby><cites>FETCH-LOGICAL-c258t-1f7bf359a33c563f0e6bbb3ac2b2cc31ed7ddf94bff52311ab1adeffb24ecc603</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.apor.2021.102773$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Razaghian, A.H.</creatorcontrib><creatorcontrib>Ebrahimi, A.</creatorcontrib><creatorcontrib>Zahedi, F.</creatorcontrib><creatorcontrib>Javanmardi, M.R.</creatorcontrib><creatorcontrib>Seif, M.S.</creatorcontrib><title>Investigating the effect of geometric parameters on hydrodynamic and hydro-acoustic performances of submerged propellers</title><title>Applied ocean research</title><description>The hydro-acoustic analysis of submerged propellers is an important issue in marine industries, which is examined to reduce the vibrations and noise level of vessels alongside reducing fuel consumption and improving hydrodynamic efficiency. B-series propellers are common propellers whose hydrodynamic and acoustic investigation through applying suitable rake, and skew angle can offer proper results to designers for enhancing the hydrodynamic performance and reducing noise. In this study, a model of the five-bladed B-series propeller with the normal skew angle is chosen. The effects of geometric parameters, including the rake angle, skew angle, geometric pitch ratio, and the number of blades on the hydrodynamic and acoustic performance of propeller, are numerically investigated under non-cavitating conditions. In the numerical analysis, RANS equations are solved using the finite volume method through k-ε turbulence modeling, and the hydrodynamic characteristics of the propellers are evaluated at different flow conditions. In addition, the noise of propellers is calculated using FW-H formulation in defined receivers. For validation of the numerical results, the model of propeller is tested in the K23 cavitation tunnel at the Sharif University of Technology. Results show that the numerical results are in good agreement with experimental results and other numerical studies. Moreover, the effects of changes of geometric parameters on the hydrodynamic and acoustic performance of the propeller are investigated. According to the results, the far-field can be defined relative to the propeller's radius (R). By increasing the rake angle, geometric pitch ratio, and blade numbers individually, the hydrodynamic efficiency decreases in each advance ratio. The overall SPL downstream of the propeller is higher than the rotation plane, and the five and 7-blade propellers can provide desirable SPL acoustically in this propeller type.</description><subject>Acoustics</subject><subject>Cavitation</subject><subject>Finite volume method</subject><subject>FW-H equations</subject><subject>Geometric parameters</subject><subject>Hydro-acoustic</subject><subject>Hydrodynamic</subject><subject>Hydrodynamics</subject><subject>Industry</subject><subject>Investigations</subject><subject>Noise</subject><subject>Noise reduction</subject><subject>Numerical analysis</subject><subject>Parameters</subject><subject>Propellers</subject><subject>Sound pressure level</subject><subject>Turbulence</subject><issn>0141-1187</issn><issn>1879-1549</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9UMlOwzAUtBBIlMIPcLLEOcVLVokLqlgqVeICZ8vLc5qoiYOdVPTvcRTOnN7TeGaeZxC6p2RDCc0f240cnN8wwmgEWFHwC7SiZVElNEurS7QiNKUJjcg1ugmhJYSyMi9X6GfXnyCMTS3Hpq_xeAAM1oIesbO4BtfB6BuNB-llXMEH7Hp8OBvvzLmXXXySvVmARGo3RavIBm-d72SvIcw-YVId-BoMHrwb4HiMPrfoyspjgLu_uUZfry-f2_dk__G22z7vE82yckyoLZTlWSU511nOLYFcKcWlZoppzSmYwhhbpcrajHFKpaLSxASKpaB1TvgaPSy-8fT3FKOK1k2-jycFy_KSkyIvZxZbWNq7EDxYMfimk_4sKBFzw6IVc8NiblgsDUfR0yKC-P9TA14E3UAMbRofGxTGNf_JfwHD2okD</recordid><startdate>202109</startdate><enddate>202109</enddate><creator>Razaghian, A.H.</creator><creator>Ebrahimi, A.</creator><creator>Zahedi, F.</creator><creator>Javanmardi, M.R.</creator><creator>Seif, M.S.</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TN</scope><scope>F1W</scope></search><sort><creationdate>202109</creationdate><title>Investigating the effect of geometric parameters on hydrodynamic and hydro-acoustic performances of submerged propellers</title><author>Razaghian, A.H. ; Ebrahimi, A. ; Zahedi, F. ; Javanmardi, M.R. ; Seif, M.S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c258t-1f7bf359a33c563f0e6bbb3ac2b2cc31ed7ddf94bff52311ab1adeffb24ecc603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Acoustics</topic><topic>Cavitation</topic><topic>Finite volume method</topic><topic>FW-H equations</topic><topic>Geometric parameters</topic><topic>Hydro-acoustic</topic><topic>Hydrodynamic</topic><topic>Hydrodynamics</topic><topic>Industry</topic><topic>Investigations</topic><topic>Noise</topic><topic>Noise reduction</topic><topic>Numerical analysis</topic><topic>Parameters</topic><topic>Propellers</topic><topic>Sound pressure level</topic><topic>Turbulence</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Razaghian, A.H.</creatorcontrib><creatorcontrib>Ebrahimi, A.</creatorcontrib><creatorcontrib>Zahedi, F.</creatorcontrib><creatorcontrib>Javanmardi, M.R.</creatorcontrib><creatorcontrib>Seif, M.S.</creatorcontrib><collection>CrossRef</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><jtitle>Applied ocean research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Razaghian, A.H.</au><au>Ebrahimi, A.</au><au>Zahedi, F.</au><au>Javanmardi, M.R.</au><au>Seif, M.S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Investigating the effect of geometric parameters on hydrodynamic and hydro-acoustic performances of submerged propellers</atitle><jtitle>Applied ocean research</jtitle><date>2021-09</date><risdate>2021</risdate><volume>114</volume><spage>102773</spage><pages>102773-</pages><artnum>102773</artnum><issn>0141-1187</issn><eissn>1879-1549</eissn><abstract>The hydro-acoustic analysis of submerged propellers is an important issue in marine industries, which is examined to reduce the vibrations and noise level of vessels alongside reducing fuel consumption and improving hydrodynamic efficiency. B-series propellers are common propellers whose hydrodynamic and acoustic investigation through applying suitable rake, and skew angle can offer proper results to designers for enhancing the hydrodynamic performance and reducing noise. In this study, a model of the five-bladed B-series propeller with the normal skew angle is chosen. The effects of geometric parameters, including the rake angle, skew angle, geometric pitch ratio, and the number of blades on the hydrodynamic and acoustic performance of propeller, are numerically investigated under non-cavitating conditions. In the numerical analysis, RANS equations are solved using the finite volume method through k-ε turbulence modeling, and the hydrodynamic characteristics of the propellers are evaluated at different flow conditions. In addition, the noise of propellers is calculated using FW-H formulation in defined receivers. For validation of the numerical results, the model of propeller is tested in the K23 cavitation tunnel at the Sharif University of Technology. Results show that the numerical results are in good agreement with experimental results and other numerical studies. Moreover, the effects of changes of geometric parameters on the hydrodynamic and acoustic performance of the propeller are investigated. According to the results, the far-field can be defined relative to the propeller's radius (R). By increasing the rake angle, geometric pitch ratio, and blade numbers individually, the hydrodynamic efficiency decreases in each advance ratio. The overall SPL downstream of the propeller is higher than the rotation plane, and the five and 7-blade propellers can provide desirable SPL acoustically in this propeller type.</abstract><cop>Barking</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.apor.2021.102773</doi></addata></record> |
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| subjects | Acoustics Cavitation Finite volume method FW-H equations Geometric parameters Hydro-acoustic Hydrodynamic Hydrodynamics Industry Investigations Noise Noise reduction Numerical analysis Parameters Propellers Sound pressure level Turbulence |
| title | Investigating the effect of geometric parameters on hydrodynamic and hydro-acoustic performances of submerged propellers |
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