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Extended two-fluid model applied to analysis of bubbly flow in multiphase rotodynamic pump impeller

Zhiyi YU, Guoyu WANG, Shuliang CAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 53-59 doi: 10.1007/s11465-009-0006-0

Abstract: This paper presents an extended two-fluid model based on the Navier-Stokes equations and the standardturbulence model, to simulate the three-dimensional air-water bubbly flow in turbo machinery.the pure liquid flow and air-water two-phase flow with the inlet gas volume fraction being 15% in a multiphaseComparison with experimental results shows the reliability and commonality of the numerical model.

Keywords： two-fluid model     multiphase rotodynamic pump     SIMPLEC algorithm     numerical simulation    

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Application of different CFD multiphase models to investigate effects of baffles and nanoparticles on

Ali SHAHMOHAMMADI,Arezou JAFARI

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 320-329 doi: 10.1007/s11705-014-1437-7

Abstract: To find an accurate model for CFD simulations, the results obtained by the single phase were comparedwith those obtained by three different multiphase models including Eulerian, mixture and volume of fluidIt was found that multiphase models could better predict the heat transfer in nanofluids.

Keywords： CFD simulation     heat transfer     nanofluid     baffle     single phase model     multiphase model    

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Design and Fabrication of Multiphase Composite Ceramic Tool Materials

Xu Chonghai,Ai Xing

Strategic Study of CAE 2001, Volume 3, Issue 3,   Pages 71-74

Abstract:

The multiphase composite and the computer aided design of the ceramics are two significant trendsdescription of the relationships between the mechanical properties and the material compositions of the multiphaseThen, an advanced Al2〇3—SiC-(W,Ti)C multiphase composite ceramic cuttingwhich proves that the method proposed in the present study is reasonable and feasible for the design of multiphase

Keywords： ceramic tool material     multiphase composite     material design     model     mechanical property    

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Simulating multiphase flow in a two-stage pusher centrifuge using computational fluid dynamics

Chong PANG, Wei TAN, Endian SHA, Yuanqing TAO, Liyan LIU

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 329-338 doi: 10.1007/s11705-012-1205-5

Abstract: centrifugal filter processes, the computational fluid dynamics (CFD) software program FLUENT has been used to modelthe three-dimensional geometry and to simulate multiphase flows based on Euler-Euler, moving mesh, dynamic

Keywords： two-stage pusher centrifuge     multiphase flow     CFD     dynamic mesh     porous media    

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Latest progress in numerical simulations on multiphase flow and thermodynamics in production of natural

Lin ZUO, Lixia SUN, Changfu YOU

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 152-159 doi: 10.1007/s11708-009-0017-x

Abstract: Some studies on the multiphase flow and thermodynamics have been conducted to investigate the feasibilityA comprehensive numerical method considering the multiphase flow and thermodynamics of gas production

Keywords： numerical simulation     natural gas hydrate     dissociation     thermodynamics     multiphase flow    

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Erosion-corrosion failure of REAC pipes under multiphase flow

Ping TANG, Jian YANG, Jinyang ZHENG, Shizheng HE, Jianjun YE, Guofu OU, Ieong WONG, Yanbao MA,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 389-395 doi: 10.1007/s11708-009-0045-6

Abstract: proposed to explore the erosion failure of reactor effluent air cooler (REAC) pipes with liner under multiphaseA theoretical model based on the erosion-corrosion effects of REAC on mixture turbulent flow was proposedfor multiphase flow.Besides, the pipe’s erosion-corrosion rules under multiphase flow and the relationship betweenmultiphase flow and erosion-corrosion under dangerous working conditions were studied.

Keywords： multiphase flow     erosion-corrosion     pipes     reactor effluent air cooler (REAC)     computational fluid dynamics    

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Experimental investigation of multiphase flow behavior in drilling annuli using high speed visualization

Alap Ali ZAHID, Syed Raza ur REHMAN, Anwarul HASAN, S. RUSHD, Mohammad Azizur RAHMAN

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 635-643 doi: 10.1007/s11708-018-0582-y

Abstract: is an important technique to visualize the drilling conditions and to study the physics of complex multiphaseThe main advantage of visualizing multiphase flow in a drilling annulus is that the viewer can easily

Keywords： visualization     horizontal annulus     hole cleaning     multiphase flow     image analysis     flow regime    

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Research progress on hydrate plugging in multiphase mixed rich-liquid transportation pipelines

Shuyu SONG, Zhiming LIU, Li ZHOU, Liyan SHANG, Yaxin WANG

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 774-792 doi: 10.1007/s11708-020-0688-x

Abstract: The plugging mechanism of multiphase mixed rich-liquid transportation in submarine pipeline is a prerequisiteThis paper introduced the common experimental devices used to study multiphase flow, and summarized theThird, a complete model of the effect of the synergy of liquid bridge force and van der Waals force infrequency model should be summarized.Next, the dynamic analysis of a multiphase mixed rich-liquid transportation pipeline should be coupled

Keywords： hydrate     rich-liquid phase     plugging mechanism     coalescence     deposition     anti-agglomerate    

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Multiphase redistribution differences of polycyclic aromatic hydrocarbons (PAHs) between two successive

Rufeng LI,Chenghong FENG,Dongxin WANG,Baohua LI,Zhenyao SHEN

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 381-389 doi: 10.1007/s11783-015-0817-7

Abstract: concentrations of mineral composition and organic matters in the overlying water, which significantly affects multiphase

Keywords： sediment suspension     PAHs     multiphase distribution     distribution coefficients    

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Calculation for the Cross Section Size of Flue Collector of Master-Slave mode Discharging System

Huang Rui,Yang Lizhong,Fan Weicheng

Strategic Study of CAE 2001, Volume 3, Issue 11,   Pages 45-48

Abstract:

Flue collector of master-slave mode discharging system in domicile kitchen can be taken as one dimensional vertical steady flow with friction. By calculation of the distributional condition of the physical parameter of mobile phase and particle phase of flow, it can ascertain the flow condition of particle phase and further decide the discharging condition of fume. And it is affected by some conditions, such as highness of discharging system, diameter of flue and composition of material and so on. Through presetting the highness of discharging system and ensuring a well discharging condition, the diameter of master flue can be got to fit the condition. So a better size of cross section can be found for pipe laying, which both meets the discharging condition of fume aiwl economizes the construction material.

Keywords： multiphase flow     master-slave mode discharging flue in kitchen     calculating model    

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Multiphase surfactant-assisted reaction-separation system in a microchannel reactor

Salah ALJBOUR, Tomohiko TAGAWA, Mohammad MATOUQ, Hiroshi YAMADA

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 33-38 doi: 10.1007/s11705-009-0108-6

Abstract: sulfate was incorporated in the organic-aqueous system to enhance the reactivity and to manipulate the multiphaseIt was found that the dynamics and the kinetics of the multiphase reaction were affected by the new micellarParallel multiphase flow inside the microchannel was obtained, allowing for continuous and acceptable

Keywords： Lewis acid catalysis     multiphase reactions     process intensification     microchannel reactor     green engineering    

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Simultaneous acquisition of CT angiography and whole brain CT perfusion images by using multiphase dynamic

Weiwei CHEN, Jianpin QI, Wenzhen ZHU, Wenhua HUANG, Jinmei SONG

Frontiers of Medicine 2009, Volume 3, Issue 2,   Pages 230-235 doi: 10.1007/s11684-009-0023-8

Abstract: We implemented a new protocol — multiphase dynamic helical scan to acquire CT angiography (CTA) and whole

Keywords： computed tomography angiography     computed tomography perfusion    

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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: Emulsion systems are widely applied in agriculture, food, cosmetic, pharmaceutical and biomedical industries. Ultrasound has attracted much attention in emulsion preparation, especially for nanoemulsion, due to its advantages of being eco-friendly, cost-effective and energy-efficient. This review provides an overview for readers to the area of ultrasonic emulsification technology. It briefly introduces and summarizes knowledge of ultrasonic emulsification, including emulsion characteristics, acoustic cavitation, emulsification mechanism, ultrasonic devices and applications. The combination of microfluidics and ultrasound is highlighted with huge advantages in controlling cavitation phenomena and emulsification intensification. A novel scale of dμC0.6/μD0.33−EV is proposed to be able to compare the energy efficiency of emulsion preparation in different devices.

Keywords： nanoemulsion     ultrasound     microreactor     multiphase     energy    

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Application of subsea multiphase flow meter in the development of deepwater oil and gas fields

Liu Taiyuan,Guo Hong and Zheng Lijun

Strategic Study of CAE 2012, Volume 14, Issue 11,   Pages 69-74

Abstract: Recent years there are more and more subsea multiphase flow meters installed and being in operation.The principles of multiphase flow measurement are introduced and other factors relevant to the measurementThe feasibility of cases is also presented and it is helpful for the selection of subsea multiphase flow

Keywords： deepwater     subsea multiphase flow meter     flow assurance     reservoir optimization     field development    

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Mechanism and control factors of hydrate plugging in multiphase liquid-rich pipeline flow systems: a

Shuwei ZHANG, Liyan SHANG, Zhen PAN, Li ZHOU, You GUO

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 747-773 doi: 10.1007/s11708-022-0830-z

Abstract: it is increasingly necessary to expand the application of the hydrate blockage formation prediction model

Keywords： hydrate     flow rate     water content     mechanism of pipeline blockage     rich liquid phase system    

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Title Author Date Type Operation

Extended two-fluid model applied to analysis of bubbly flow in multiphase rotodynamic pump impeller

Zhiyi YU, Guoyu WANG, Shuliang CAO

Journal Article

Application of different CFD multiphase models to investigate effects of baffles and nanoparticles on

Ali SHAHMOHAMMADI,Arezou JAFARI

Journal Article

Design and Fabrication of Multiphase Composite Ceramic Tool Materials

Xu Chonghai,Ai Xing

Journal Article

Simulating multiphase flow in a two-stage pusher centrifuge using computational fluid dynamics

Chong PANG, Wei TAN, Endian SHA, Yuanqing TAO, Liyan LIU

Journal Article

Latest progress in numerical simulations on multiphase flow and thermodynamics in production of natural

Lin ZUO, Lixia SUN, Changfu YOU

Journal Article

Erosion-corrosion failure of REAC pipes under multiphase flow

Ping TANG, Jian YANG, Jinyang ZHENG, Shizheng HE, Jianjun YE, Guofu OU, Ieong WONG, Yanbao MA,

Journal Article

Experimental investigation of multiphase flow behavior in drilling annuli using high speed visualization

Alap Ali ZAHID, Syed Raza ur REHMAN, Anwarul HASAN, S. RUSHD, Mohammad Azizur RAHMAN

Journal Article

Research progress on hydrate plugging in multiphase mixed rich-liquid transportation pipelines

Shuyu SONG, Zhiming LIU, Li ZHOU, Liyan SHANG, Yaxin WANG

Journal Article

Multiphase redistribution differences of polycyclic aromatic hydrocarbons (PAHs) between two successive

Rufeng LI,Chenghong FENG,Dongxin WANG,Baohua LI,Zhenyao SHEN

Journal Article

Calculation for the Cross Section Size of Flue Collector of Master-Slave mode Discharging System

Huang Rui,Yang Lizhong,Fan Weicheng

Journal Article

Multiphase surfactant-assisted reaction-separation system in a microchannel reactor

Salah ALJBOUR, Tomohiko TAGAWA, Mohammad MATOUQ, Hiroshi YAMADA

Journal Article

Simultaneous acquisition of CT angiography and whole brain CT perfusion images by using multiphase dynamic

Weiwei CHEN, Jianpin QI, Wenzhen ZHU, Wenhua HUANG, Jinmei SONG

Journal Article

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

Journal Article

Application of subsea multiphase flow meter in the development of deepwater oil and gas fields

Liu Taiyuan,Guo Hong and Zheng Lijun

Journal Article

Mechanism and control factors of hydrate plugging in multiphase liquid-rich pipeline flow systems: a

Shuwei ZHANG, Liyan SHANG, Zhen PAN, Li ZHOU, You GUO

Journal Article