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Article: Numerical prediction of sound field generated by propeller

TitleNumerical prediction of sound field generated by propeller
Authors
Issue Date1991
Citation
Hangkong Dongli Xuebao/Journal Of Aerospace Power, 1991, v. 6 n. 4, p. 313-316 How to Cite?
AbstractA fast and accurate numerical method is presented for predicting the sound field generated by subsonic propellers. The free space field, including the near and far sound field radiated by noncompact sources, is calculated by means of a retarded time integration in time domain. The FW-H equation is applied to solving the sound field generated by moving boundaries of solid body in the flow field, but its quadrupole term is neglected. Thus the noncompact sources mean the thickness source and the load source both are included in the dipole term. According to the assumption, the sound field generated by a 3-D shaped propeller is considered as the sum of the terms radiated by each strip element located spanwise. The pressure chordwise distribution at each element should be known before solving the sound field. For this purpose a code solving 2-D compressible full velocity potential equation with body-fitting coordinates is used which has been developed by BUAA previously. Comparison of calculated results with test data proves the present method and the code to be useful engineering tools. This conclusion has been also tested in the design of a propeller.
Persistent Identifierhttp://hdl.handle.net/10722/156360
ISSN
2015 SCImago Journal Rankings: 0.280

 

DC FieldValueLanguage
dc.contributor.authorZhou, Shengen_US
dc.contributor.authorHuang, Lixien_US
dc.date.accessioned2012-08-08T08:42:08Z-
dc.date.available2012-08-08T08:42:08Z-
dc.date.issued1991en_US
dc.identifier.citationHangkong Dongli Xuebao/Journal Of Aerospace Power, 1991, v. 6 n. 4, p. 313-316en_US
dc.identifier.issn1000-8055en_US
dc.identifier.urihttp://hdl.handle.net/10722/156360-
dc.description.abstractA fast and accurate numerical method is presented for predicting the sound field generated by subsonic propellers. The free space field, including the near and far sound field radiated by noncompact sources, is calculated by means of a retarded time integration in time domain. The FW-H equation is applied to solving the sound field generated by moving boundaries of solid body in the flow field, but its quadrupole term is neglected. Thus the noncompact sources mean the thickness source and the load source both are included in the dipole term. According to the assumption, the sound field generated by a 3-D shaped propeller is considered as the sum of the terms radiated by each strip element located spanwise. The pressure chordwise distribution at each element should be known before solving the sound field. For this purpose a code solving 2-D compressible full velocity potential equation with body-fitting coordinates is used which has been developed by BUAA previously. Comparison of calculated results with test data proves the present method and the code to be useful engineering tools. This conclusion has been also tested in the design of a propeller.en_US
dc.languageengen_US
dc.relation.ispartofHangkong Dongli Xuebao/Journal of Aerospace Poweren_US
dc.titleNumerical prediction of sound field generated by propelleren_US
dc.typeArticleen_US
dc.identifier.emailHuang, Lixi:lixi@hku.hken_US
dc.identifier.authorityHuang, Lixi=rp00119en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0026243659en_US
dc.identifier.volume6en_US
dc.identifier.issue4en_US
dc.identifier.spage313en_US
dc.identifier.epage316en_US
dc.identifier.scopusauthoridZhou, Sheng=55222826600en_US
dc.identifier.scopusauthoridHuang, Lixi=7404735514en_US

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