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Augmentation of natural convective heat transfer by acoustic cavitation

Jun CAI, Xiulan HUAI, Shiqiang LIANG, Xunfeng LI,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 313-318 doi: 10.1007/s11708-009-0064-3

Abstract: An experimental study was conducted to investigate the effects of acoustic cavitation on natural convectiveThe experimental results indicated that heat transfer could be enhanced by acoustic cavitation and had

Keywords： heat transfer enhancement     augmentation     acoustic cavitation     acoustic streaming     convective heat transfer    

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Recent Developments in Hydrodynamic Cavitation Reactors: Cavitation Mechanism, Reactor Design, and Applications Review

Haoxuan Zheng, Ying Zheng, Jesse Zhu

Engineering 2022, Volume 19, Issue 12,   Pages 180-198 doi: 10.1016/j.eng.2022.04.027

Abstract:

Hydrodynamic cavitation is considered to be a promising technology for process intensification, dueIn the past decade, advancements have been made in the fundamental understanding of hydrodynamic cavitation, the design of cavitation reactors, cavitation-induced reaction enhancement, and relevant industrialThe design parameters of a hydrodynamic cavitation reactor and reactor performance at the laboratoryThe unique features of hydrodynamic cavitation have been widely applied to various chemical reactions

Keywords： Hydrodynamic cavitation     Cavitation nuclei     Hydroxyl radicals     Stationary/rotational hydrodynamic cavitationreactor     Reaction enhancement     Cavitation application    

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Ultrasonic emulsification: basic characteristics, cavitation, mechanism, devices and application

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1560-1583 doi: 10.1007/s11705-022-2160-4

Abstract: introduces and summarizes knowledge of ultrasonic emulsification, including emulsion characteristics, acousticcavitation, emulsification mechanism, ultrasonic devices and applications.The combination of microfluidics and ultrasound is highlighted with huge advantages in controlling cavitation

Keywords： nanoemulsion     ultrasound     microreactor     multiphase     energy    

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General Optimization Design Research of Metallic Materials to Resist Cavitation Erosion and Abrasion

Wang Biao,Zhang Zihua,Wang Yudong

Strategic Study of CAE 2000, Volume 2, Issue 2,   Pages 64-67

Abstract:

For the design optimization of erosion and abrasion resisting metallic materials basic study and productively applied research were conducted. Basic study indicates that W, Co and Cr have better erosion and abrasion resisting property than other ones among ten useful constructive metals. Productively applied researche indicates that thermal sprayed WC- M hard faced ceramics in the tungsten parental materials, rare earth plating chromium in the chromium parental materials, and CoCrWC hard faced ceramic in the cobalt parental materials are better erosion and abrasion resisting materials with high performance and low cost.

Keywords： hydraulic turbine     cavitation erosion and abrasion materials     design    

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The cavitation erosion damage process of dynamically loaded journal bearings

MA Yan-yan, CHENG Xian-hua

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 461-464 doi: 10.1007/s11465-006-0059-2

Abstract: The cavitation damage model was built using finite element analysis software MSC.Marc.damage mechanics when a jet created by bubble collapse acted on the bearing surface in the process of cavitationload can be calculated efficiently using the proposed method, which develops a new method of analyzing cavitation

Keywords： bearing     fraction increase     collapse     process     evolvement    

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Numerical modeling of cavitation on spillway’s flip bucket

Abbas PARSAIE,Sadegh DEHDAR-BEHBAHANI,Amir Hamzeh HAGHIABI

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 438-444 doi: 10.1007/s11709-016-0337-y

Abstract: In this paper, using Flow 3D as CFD commercial tool, the cavitation phenomenon was assessed along spillway'snumerical modeling, it was found that RNG turbulence model is a suitable performance for modeling the cavitationPhysical modeling shows that minimum cavitation index is about 0.85 and minimum cavitation index basedResults of numerical simulation show that occurrence of cavitation based on cavitation index equal to

Keywords： cavitation Index     numerical simulation     spillway’s flip Bucket     CFD     Balaroud Dam     physical modeling    

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Acoustic fault signal extraction via the line-defect phononic crystals

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 10-10 doi: 10.1007/s11465-021-0666-y

Abstract: The defect band, namely, the formed resonance band of line-defect PCs enables the incident acoustic wave

Keywords： phononic crystals     line-defect     fault signal extraction     acoustic enhancement    

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The Theorem of the Resistance of Hydraulic Machine's Materials to Cavitation Erosion and Abrasion

Wang Biao,Wang Yudong,Zhang Zihua,Ye Xianguo

Strategic Study of CAE 2003, Volume 5, Issue 7,   Pages 58-61

Abstract:

In order to confirm the dependence of the resistance of cavitation erosion and abrasion (CEA) on theNiCr alloy coating, boron stainless steel and titanium) were used to do the experiments of CEA and cavitation

Keywords： hydraulic machine´     s materials     cavitation erosion and abrasion     theorem    

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Experimental study on wire breakage detection by acoustic emission

Limin SUN, Ji QIAN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4,   Pages 503-509 doi: 10.1007/s11709-011-0132-8

Abstract: This paper experimentally investigated wire breakage detection in a steel cable by acoustic emission

Keywords： acoustic emission (AE)     waveform     wire breakage     attenuation factor     wave velocity    

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Simulation and experimental improvement on a small-scale Stirling thermo-acoustic engine

Mao CHEN,Yonglin JU

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 37-45 doi: 10.1007/s11708-015-0390-6

Abstract: Compared with the traditional engines, the thermo-acoustic engines are relatively new and can act asIn this paper, the influence of the dimensions of the main parts of the small-scale Stirling thermo-acousticBased on the numerical simulation, a small-scale Stirling thermo-acoustic engine were constructed and

Keywords： thermo-acoustic Stirling engine     small-scale     simulation     experiment    

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Fast scaling approach based on cavitation conditions to estimate the speed limitation for axial piston

Qun CHAO, Jianfeng TAO, Junbo LEI, Xiaoliang WEI, Chengliang LIU, Yuanhang WANG, Linghui MENG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 176-185 doi: 10.1007/s11465-020-0616-0

Abstract: However, the maximum rotational speed of axial piston machines is limited by the cavitation phenomenonThis paper presents a scaling law derived from an analytical cavitation model to estimate the speed limitationsThe cavitation model is experimentally verified using a high-speed axial piston pump, and the scalingThis constant can represent the comprehensive capacity of axial piston pumps free from cavitation.

Keywords： axial piston pump     cavitation     speed limitation     scaling law    

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Acoustic characteristics of bi-directional turbines for thermoacoustic generators

Dongdong LIU, Yanyan CHEN, Wei DAI, Ercang LUO

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 1027-1036 doi: 10.1007/s11708-020-0702-3

Abstract: A general expression for the acoustic characteristics of the bi-directional turbine was proposed basedThe turbine in the oscillating flow was treated in a lumped-parameter model to extract the acoustic impedanceThe key acoustic impedance characteristic of the turbine was the resistance and inertance due to complex

Keywords： thermoacoustic power generator     acoustic characteristics     bi-directional impulse turbine     energy conversion    

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Research on acoustic-structure sensitivity using FEM and BEM

ZHANG Jun, ZHAO Wenzhong, ZHANG Weiying

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 62-67 doi: 10.1007/s11465-007-0010-1

Abstract: Acoustic-structure sensitivity is used to predict the change of acoustic pressure when a structure designUsing FEM (finite element method) and BEM (boundary element method) acoustic-structure sensitivity wasacoustic BEM.Then, acoustic-structure sensitivity was computed by linking velocity sensitivity in FEM and acousticAcoustic pressure sensitivity with respect to structure thickness achieved in frequency ranges 1 100

Keywords： sensitivity method     BEM     acoustic pressure     pressure sensitivity     frequency    

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Acoustic emissions evaluation of the dynamic splitting tensile properties of steel fiber reinforced concrete

Frontiers of Structural and Civil Engineering   Pages 1341-1356 doi: 10.1007/s11709-023-0988-4

Abstract: The dynamic splitting tensile damage characteristics were evaluated using acoustic emission (AE) parameter

Keywords： steel fiber reinforced concrete     freeze–thaw cycling     Brazilian disc splitting test     acoustic emissiontechnique     dynamic splitting tensile acoustic emission properties    

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evolution behavior of polypropylene fiber reinforced concrete subjected to sulfate attack based on acoustic

Ninghui LIANG; Jinwang MAO; Ru YAN; Xinrong LIU; Xiaohan ZHOU

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 316-328 doi: 10.1007/s11709-022-0810-8

Abstract: reinforced concrete (PFRC) subjected to sulfate attack, a uniaxial compression test was carried out based on acoustic

Keywords： polypropylene fiber reinforced concrete     sulfate attack     damage evolution behavior     acoustic emission    

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Title Author Date Type Operation

Augmentation of natural convective heat transfer by acoustic cavitation

Jun CAI, Xiulan HUAI, Shiqiang LIANG, Xunfeng LI,

Journal Article

Recent Developments in Hydrodynamic Cavitation Reactors: Cavitation Mechanism, Reactor Design, and Applications

Haoxuan Zheng, Ying Zheng, Jesse Zhu

Journal Article

Ultrasonic emulsification: basic characteristics, cavitation, mechanism, devices and application

Journal Article

General Optimization Design Research of Metallic Materials to Resist Cavitation Erosion and Abrasion

Wang Biao,Zhang Zihua,Wang Yudong

Journal Article

The cavitation erosion damage process of dynamically loaded journal bearings

MA Yan-yan, CHENG Xian-hua

Journal Article

Numerical modeling of cavitation on spillway’s flip bucket

Abbas PARSAIE,Sadegh DEHDAR-BEHBAHANI,Amir Hamzeh HAGHIABI

Journal Article

Acoustic fault signal extraction via the line-defect phononic crystals

Journal Article

The Theorem of the Resistance of Hydraulic Machine's Materials to Cavitation Erosion and Abrasion

Wang Biao,Wang Yudong,Zhang Zihua,Ye Xianguo

Journal Article

Experimental study on wire breakage detection by acoustic emission

Limin SUN, Ji QIAN

Journal Article

Simulation and experimental improvement on a small-scale Stirling thermo-acoustic engine

Mao CHEN,Yonglin JU

Journal Article

Fast scaling approach based on cavitation conditions to estimate the speed limitation for axial piston

Qun CHAO, Jianfeng TAO, Junbo LEI, Xiaoliang WEI, Chengliang LIU, Yuanhang WANG, Linghui MENG

Journal Article

Acoustic characteristics of bi-directional turbines for thermoacoustic generators

Dongdong LIU, Yanyan CHEN, Wei DAI, Ercang LUO

Journal Article

Research on acoustic-structure sensitivity using FEM and BEM

ZHANG Jun, ZHAO Wenzhong, ZHANG Weiying

Journal Article

Acoustic emissions evaluation of the dynamic splitting tensile properties of steel fiber reinforced concrete

Journal Article

evolution behavior of polypropylene fiber reinforced concrete subjected to sulfate attack based on acoustic

Ninghui LIANG; Jinwang MAO; Ru YAN; Xinrong LIU; Xiaohan ZHOU

Journal Article