{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T00:26:45Z","timestamp":1780446405315,"version":"3.54.1"},"reference-count":46,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2021,1,28]],"date-time":"2021-01-28T00:00:00Z","timestamp":1611792000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100013058","name":"Jiangsu Provincial Key Research and Development Program","doi-asserted-by":"publisher","award":["GY2017001, GY2018025"],"award-info":[{"award-number":["GY2017001, GY2018025"]}],"id":[{"id":"10.13039\/501100013058","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010014","name":"Six Talent Peaks Project in Jiangsu Province","doi-asserted-by":"publisher","award":["GDZB-017"],"award-info":[{"award-number":["GDZB-017"]}],"id":[{"id":"10.13039\/501100010014","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["No.2016YFB0200901"],"award-info":[{"award-number":["No.2016YFB0200901"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["No.51879122, 51579117,51779106"],"award-info":[{"award-number":["No.51879122, 51579117,51779106"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The strong noise generated during the operation of the centrifugal pump harms the pump group and people. In order to decrease the noise of the centrifugal pump, a specific speed of 117.3 of the centrifugal pump is chosen as a research object. The bionic modification of centrifugal pump blades is carried out to explore the influence of different bionic structures on the noise reduction performance of centrifugal pumps. The internal flow field and internal sound field of bionic blades are studied by numerical calculation and test methods. The test is carried out on a closed pump test platform which includes external characteristics and a flow noise test system. The effects of two different bionic structures on the external characteristics, acoustic amplitude\u2013frequency characteristics and flow field structure of a centrifugal pump, are analyzed. The results show that the pit structure has little influence on the external characteristic parameters, while the sawtooth structure has a relatively great influence. The noise reduction effect of the pit structure is aimed at the wide-band noise, while the sawtooth structure is aimed at the discrete noise of the blade-passing frequency (BPF) and its frequency doubling. The noise reduction ability of the sawtooth structure is not suitable for high-frequency bands.<\/jats:p>","DOI":"10.3390\/s21030886","type":"journal-article","created":{"date-parts":[[2021,1,28]],"date-time":"2021-01-28T09:03:45Z","timestamp":1611824625000},"page":"886","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["Analysis of the Influence of Different Bionic Structures on the Noise Reduction Performance of the Centrifugal Pump"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6965-7906","authenticated-orcid":false,"given":"Cui","family":"Dai","sequence":"first","affiliation":[{"name":"School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chao","family":"Guo","sequence":"additional","affiliation":[{"name":"Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiping","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0678-4382","authenticated-orcid":false,"given":"Liang","family":"Dong","sequence":"additional","affiliation":[{"name":"Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Houlin","family":"Liu","sequence":"additional","affiliation":[{"name":"Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,1,28]]},"reference":[{"key":"ref_1","first-page":"23","article-title":"Effect of blade loading on fluid-induced exciting force and noise in centrifugal pumps","volume":"32","author":"Yang","year":"2014","journal-title":"J. Dra Irr. Mach. Eng."},{"key":"ref_2","first-page":"1264","article-title":"Numerical simulation of internal flow induced noise in submersible sewage pump based on the direct boundary element method","volume":"36","author":"Cai","year":"2018","journal-title":"J. Dra Irr. Mach. Eng."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"2733","DOI":"10.1007\/s11771-018-3950-1","article-title":"Noise comparison of centrifugal pump operating in pump and turbine mode","volume":"25","author":"Dong","year":"2018","journal-title":"J. Cent. South Univ."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"375","DOI":"10.1016\/0022-460X(76)90394-1","article-title":"Noise reduction in centrifugal fans:a literature survey","volume":"45","author":"Neise","year":"1976","journal-title":"J. Sound Vib."},{"key":"ref_5","first-page":"219","article-title":"Experimental studies of noise generation mechanisms from a centrifugal pump","volume":"5","author":"Tourret","year":"1985","journal-title":"Inter-Noise Noise-Con Congress. Conf. Proc."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"390","DOI":"10.1115\/1.2910043","article-title":"Quantitative visualization of the flow within the volute of a centrifugal pump. Part A: Technique","volume":"114","author":"Dong","year":"1992","journal-title":"J. Fluid Eng."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"396","DOI":"10.1115\/1.2910044","article-title":"Quantitative visualization of the flow within the volute of a centrifugal pump. Part B: Result","volume":"114","author":"Dong","year":"1992","journal-title":"J. Fluid Eng."},{"key":"ref_8","first-page":"3","article-title":"Analysis and Realization of Step-Volute tongue Scroll Denoising","volume":"3","author":"Li","year":"2005","journal-title":"Chin. J. Turbomach."},{"key":"ref_9","first-page":"5","article-title":"Practice and Analysis to Reduce the Fan Noise with Step-tongue Volute","volume":"32","author":"Li","year":"2004","journal-title":"Fluid Mach."},{"key":"ref_10","first-page":"781","article-title":"Numerical simulation of the aerodynamic tonal noise generation in a backward-curved blades centrifugal fan","volume":"295","author":"Velarde","year":"2006","journal-title":"J. Sound Vib."},{"key":"ref_11","first-page":"18","article-title":"Hydraulic design to reduce vibration of centrifugal pump operation","volume":"4","author":"Wu","year":"2004","journal-title":"Mech. Elec. Equip."},{"key":"ref_12","first-page":"37","article-title":"Operating Vibration and Anti-vibration Measures for Marine Centrifugal Pumps","volume":"6","author":"Wu","year":"2004","journal-title":"Mech. Elec. Equip."},{"key":"ref_13","first-page":"131","article-title":"Effects of number of blades on flow induced vibration and noise of centrifugal pumps","volume":"30","author":"Tan","year":"2012","journal-title":"J. Dra Irr. Mach. Eng."},{"key":"ref_14","first-page":"22","article-title":"Effect of Uneven Spacing Blade on Hydrodynamic Noise of Centrifugal Pump","volume":"47","author":"Tan","year":"2016","journal-title":"Trans. Chin. Soc. Agric. Mach."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"700","DOI":"10.1121\/1.1918591","article-title":"Experimental study of noise reduction in centrifugal blowers","volume":"35","author":"Embleton","year":"1963","journal-title":"J. Acoust. Soc. Am."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Cravero, C., and Marsano, D. (2018, January 11\u201315). Numerical prediction of tonal noise in centrifugal blowers. Proceedings of the Turbo Expo 2018: Turbomachinery Technical Conference & Exposition, Oslo, Norway.","DOI":"10.1115\/GT2018-75243"},{"key":"ref_17","unstructured":"Yang, L. (2012). Research on Exterior Aerodynamic Noise by Non-smooth Styling of Car Rearview Mirror. [Master\u2019s Thesis, Jilin University]."},{"key":"ref_18","unstructured":"Ge, Z.P. (2019). Research on Drag Reduction and Noise Reduction Characteristics of Bionic Blades of Centrifugal Pump Based on Massive Parallel Grid. [Master\u2019s Thesis, Jiangsu University]."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1016\/0889-9746(91)80010-B","article-title":"Aerodynamic noise of a serrated trailing edge","volume":"5","author":"Howe","year":"1991","journal-title":"J. Fluid Str."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"482","DOI":"10.1121\/1.401273","article-title":"Noise produced by a sawtooth trailing edge","volume":"90","author":"Howe","year":"1991","journal-title":"J. Acoust. Soc. Am."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"325","DOI":"10.1007\/s11431-016-0208-4","article-title":"Noise reduction effect of airfoil and small-scale rotor using serration trailing edge in a wind tunnel test","volume":"60","author":"Ryi","year":"2017","journal-title":"Sci. China Tech. Sci."},{"key":"ref_22","first-page":"35","article-title":"Noise-Reduction Mechanism of Bionic Coupling Blade Based on the Trailing Edge of Goshawk Wing","volume":"46","author":"Liu","year":"2012","journal-title":"J. Xian Jiaotong Univ."},{"key":"ref_23","unstructured":"Gruber, M. (2012). Airfoil Noise Reduction by Edge Treatments. [Ph.D. Thesis, University of Southampton]."},{"key":"ref_24","unstructured":"Gruber, M., Azarpeyvand, M., and Joseph, P. (2010, January 23\u201327). Airfoil trailing edge noise reduction by the introduction of sawtooth and slitted trailing edge geometries. Proceedings of the 20th International Congress on Acoustics, Sydney, Australia."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Gruber, M., Joseph, P.F., and Chong, T.P. (2010, January 7\u20139). Experimental investigation of airfoil self noise and turbulent wake reduction by the use of trailing edge serrations. Proceedings of the 16th AIAA\/CEAS Aeroacoustics Conference, Stockholm, Sweden.","DOI":"10.2514\/6.2010-3803"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Gruber, M., Joseph, P.F., and Chong, T.P. (2011, January 5\u20138). On the mechanisms of serrated airfoil trailing edge noise reduction. Proceedings of the 17th AIAA\/CEAS Aeroacoustics Conference, Portland, ON, USA.","DOI":"10.2514\/6.2011-2781"},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Gruber, M., Joseph, P.F., and Azarpeyvand, M. (2013, January 27\u201329). An experimental investigation of novel trailing edge geometries on airfoil trailing edge noise reduction. Proceedings of the 19th AIAA\/CEAS Aeroacoustics Conference, Berlin, Germany.","DOI":"10.2514\/6.2013-2011"},{"key":"ref_28","first-page":"113","article-title":"Research on characteristics of drag reduction and noise reduction on V-groove surface of bionic blade of centrifugal pump","volume":"48","author":"Dai","year":"2020","journal-title":"J. Huazhong Univ. Sci. Tech."},{"key":"ref_29","first-page":"241","article-title":"Layout position of bionic non-smooth structure on blades of centrifugal pump","volume":"38","author":"Dai","year":"2020","journal-title":"J. Dra Irr. Mach. Eng."},{"key":"ref_30","unstructured":"Chen, Y.P. (2020). Research on Noise Reduction of Centrifugal Pump Based on Bionics. [Master\u2019s Thesis, Jiangsu University]."},{"key":"ref_31","first-page":"2911","article-title":"Noise reduction mechanism of bionic airfoil trailing edge serrations","volume":"36","author":"Tong","year":"2015","journal-title":"Acta Aero Astro Sin."},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Chong, T.P., Joseph, P., and Gruber, M. (2010, January 7\u20139). An experimental study of airfoil instability noise with trailing edge serrations. Proceedings of the 16th AIAA\/CEAS Aeroacoustics Conference, Stockholm, Sweden.","DOI":"10.2514\/6.2010-3723"},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Chong, T.P., Vathylakis, A., Joseph, P., and Gruber, M. (2011, January 5\u20138). On the noise and wake flow of an airfoil with broken and serrated trailing edges. Proceedings of the 17th AIAA\/CEAS Aeroacoustics Conference, Portland, ON, USA.","DOI":"10.2514\/6.2011-2860"},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Chong, T.P., Joseph, F., and Gruber, M. (2012, January 4\u20136). On the airfoil self-noise reduction by trailing edge serrations of non-insertion type. Proceedings of the 18th AIAA\/CEAS Aeroacoustics Conference, Colorado Springs, CO, USA.","DOI":"10.2514\/6.2012-2185"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"6335","DOI":"10.1016\/j.jsv.2013.06.033","article-title":"An experimental study of airfoil instability tonal noise with trailing edge serrations","volume":"332","author":"Chong","year":"2013","journal-title":"J. Sound Vib."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"607","DOI":"10.1016\/j.apacoust.2012.11.003","article-title":"Airfoil self noise reduction by non-flat plate type trailing edge serrations","volume":"74","author":"Chong","year":"2013","journal-title":"Appl. Acoust."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1016\/j.jsv.2015.05.019","article-title":"On the aeroacoustic and flow structures developed on a flat plate with a serrated sawtooth trailing edge","volume":"354","author":"Chong","year":"2015","journal-title":"J. Sound Vib."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"561","DOI":"10.1177\/1350650115607894","article-title":"Thermohydrodynamic analysis of foil journal bearings using differential quadrature method","volume":"230","author":"Bagheri","year":"2016","journal-title":"Proc. Inst. Mech. Eng. Part J J. Eng."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"112105","DOI":"10.1016\/j.sna.2020.112105","article-title":"Progress and challenges in fabrication of wearable sensors for health monitoring","volume":"312","author":"Nasiri","year":"2020","journal-title":"Sens. Actuators A Phys."},{"key":"ref_40","unstructured":"Liu, H.L., and Tan, M.G. (2013). Modern Design Methods for Centrifugal Pumps, China Machine Press."},{"key":"ref_41","first-page":"306","article-title":"Characteristics of Non-Smooth Surface Drag Reduction Influence on Centrifugal Pump Impeller","volume":"50","author":"Mou","year":"2016","journal-title":"J. Shanghai Jiaotong Univ."},{"key":"ref_42","unstructured":"Dai, D.S. (2015). Research of Non-Smooth Surface Flow Drag Reduction Characteristics Application on Centrifugal Pump. [Master\u2019s Thesis, Zhejiang University of Technology]."},{"key":"ref_43","first-page":"123","article-title":"Development of chitosan membrane using non-toxic crosslinkers for potential wound dressing applications","volume":"1","author":"Moghadas","year":"2020","journal-title":"Polym. Bull."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"1173","DOI":"10.1121\/1.1914682","article-title":"Discrete tones of isolated airfoils","volume":"55","author":"Christopher","year":"1974","journal-title":"J. Acoust. Soc. Am."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"118","DOI":"10.2514\/3.44421","article-title":"Prediction of airfoil tone frequencies","volume":"12","author":"Fink","year":"1975","journal-title":"J. Aircr."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1017\/S0022112083003201","article-title":"Noise generated by airfoil profiles placed in a uniform laminar flow","volume":"134","author":"Arbey","year":"1983","journal-title":"J. Fluid Mech."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/3\/886\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T05:16:44Z","timestamp":1760159804000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/3\/886"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,1,28]]},"references-count":46,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2021,2]]}},"alternative-id":["s21030886"],"URL":"https:\/\/doi.org\/10.3390\/s21030886","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,1,28]]}}}