institute of process engineering chinese academy of sciences faculty

Here, the energy minimization multiscale (EMMS) model is applied to other systems, including gas/liquid, turbulent flow, foam drainage, emulsions, and granular flow, to determine how the compromise between dominant mechanisms defines the stability conditions of meso-scale structures. Recent studies have shown that the expanded bed heights of bubbling fluidized beds obtained from direct numerical simulations (DNS) are higher than those obtained from CFD-DEM method. System Year Vendor Cores Rmax (GFlop/s) Rpeak (GFlop/s) Mole-8.5 - Mole-8.5 Cluster, Xeon X5520 4C 2.27 GHz, Infiniband QDR, NVIDIA 2050: 2011 29,440: 496,500: 1,012,650 CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China Center for Advancing Electronics Dresden (cfaed) and Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden 01062, Germany The discussion focuses on the effects of mesoscale behavior, especially those present in process industries for materials and energy transformation and utilization. This chapter uses the top-down mode of the EMMS paradigm on CPU clusters to realize structural similarity between problem, model, and software, but not hardware. Researchers from the Institute of Process Engineering (IPE) of Chinese Academy of Sciences have developed a new technology to produce artemisinin, a … In this study, an Eulerian-Lagrangian-Lagrangian method (EMMS-DPM-DEM) was developed to simulate the binary gas-solid flow containing particles of significantly different sizes, where fine particles were simulated using coarse grai... Polydisperse gas–solid systems are more common in both industry and the natural world than their monodisperse counterparts. The continuous particle size is discretized into several characteristic... China’s unique energy reserve structure abundant in coal and scarce in crude oil and natural gas has promoted heavy investment on the research and development of clean coal chemical technologies during last two decades, which has turned China into a heartland for demonstrating, developing, and commercializing virtually every aspect of new coal chem... Continuum modelling of dense gas–solid flows strongly depends on the constitutive relations used, including the interphase drag force, particle phase stress and the boundary condition for particle–wall interactions. Ho... Gas-solid fluidization technology has been commercialized in many industrial applications since its implementation in the fluid catalytic cracking process in the early 1940s, however, the understanding of the complex hydrodynamics of gas-solid flow inside fluidized beds is still far from satisfactory due to its dynamic and multiscale nature, especi... Interphase drag coefficient is a critical input in two-fluid model (TFM) and discrete particle method (DPM). He focuses his research on fundamental and applied aspects of separation science and engineering including extraction and magnetic separation technologies. 2006AA05Z405 （2006－2008） 2. Institute of Electrical Engineering, Chinese Academy of Sciences Leader of solar cell technology group. Search for more papers by this author Study on nc-Si/c-Si/a-SiGe heterojunction solar cells. These conservation equations (namely the S... Gas–solid flow features significant dynamic multi-scale structure; multi-scale modeling is therefore in order. To address this problem, a mathematical model is developed to describe the kinetic properties of coarse particles,... Particle-phase pressure has to be considered in two-fluid models describing particle-fluid flows, and is important for the stability of such flows. The Energy Minimization Multi-Scale (EMMS) drag model, using Sauter mean particle diameter to represent real particle size distribution, has proven to be effective in improving the accuracy of continuum modeling of gas-solid flow. The Cold and Arid Regions Environmental and Engineering Research Institute, at Chinese Academy of Sciences on Academia.edu 1984,4-1988,3 Bachelor Degree, Department of Textile Polymer Science, Gunma University, Japan, 1988,4-1990,3 Master Degree, Department of Polymer Science, Tokyo Institute of Technology, Japan, 1990.4-1993.3, Ph.D., Department of Polymer Science, Tokyo Institute of Technology, Japan, 1993.4-1994.7, Research student, Research on polymer microspheres, Department of Polymer Science, Tokyo Institute of Technology, Japan, 1994.8-2001.7, Assistant Professor, Research on polymer microspheres, Tokyo University of Agriculture and Technology, 2001.7-present, Professor, Research on polymer micro- and nano-spheres or microcapsule and their applications, Institute of Process Engineering, Chinese Academy of Sciences. Founder and Board of … Extensive efforts have been devoted to studying the liquid–solid flow in conical hydrocyclone, however, studies on cylindrical hydrocyclone were much less, regardless of its industrial importance. Chinese Academy of Agricultural Sciences (CAAS) has nearly 10 000 employees, including over 6 000 technicians. In this note, a... Coal beneficiation technology using gas-solid fluidized bed is a hot topic in recent decade, however its proper design and scale-up remain a great challenge due to the very complex gas-solid flow involved. The outflow boundary is implemented by a particular... Countercurrent gas-solid downer reactor has been used in various processes, however, fundamental studies on the hydrodynamics of such reactors are sparse, especially, there is no computational fluid dynamics study available. D degree at Harbin Institute of Technology in 1998 and has been a professor of Chemical Engineering at the Institute of Process Engineering, Chinese Academy of Sciences since 2006. State Key Laboratory for Structural Chemistry of Unstable and Stable Species Institute of Physics Chinese Academy of Sciences has become a comprehensive and multidisciplinary research organization engaged in research on basic and applied physics. Bioseparation Media The lack of scale separation is usually claimed to cause the breakdown of the Navier–Stokes (NS) order continuum theory. Research Institutes Column Page under the Main Column of Chinese Academy of Sciences D., head of the Key laboratory of Green Process and Engineering, Chinese Academy of Sciences, is an expert in area of separation science and engineering. This Brief Communication proposes a simple model to predict collisional particle-phase pressu... Join ResearchGate to find the people and research you need to help your work. The coexistence of large particles (such as biomass or coal particles) and fine particles in gas-solid flow is common. 2001.7-present, Professor, Research on polymer micro- and nano-spheres or microcapsule and their applications, Institute of Process Engineering, Chinese Academy of Sciences . However, most research so far has focused on its dependence on shear-induced particle velocity fluctuations. Kai CHEN. State Key Laboratory for Structural Chemistry of Unstable and Stable Species Institute Of Microbiology Chinese Academy of Sciences NO.1 West Beichen Road, Chaoyang District, Beijing 100101, China Phone: 0086-10-64807462 Fax: 0086-10-64807468 Email: office@im.ac.cn Distinguished Visiting Professor, Chinese Academy of Sciences, Institute for Process Engineering, China, 2011-2012 Next Power Honorary Distinguished Chair Professor, National Tsing Hua University, Dept of Chemical Engineering, Taiwan, 2009-2010. It has been widely recognized that input parameters affected the results of Eulerian simulation of gas–solid flow. URES, Raul Mario De La Madrid. The Institute of Process and Engineering at the University of Chinese Academy of Sciences on Academia.edu Until now, there are more than 100 SCI papers and 6 English scientific books to be published. This chapter introduces the EMMS model for gas-solid two-phase flow and the motive for this series of work. Both two-fluid models embedding the kinetic theory of granular flow for particulate phase stress (TFM) and discrete particle models (DPM) are widely used for the numerical simulation of gas fluidization. This chapter summarizes the footprint, philosophy and strategy of this book. School of Microelectronics ... Chinese Academy of Sciences Member. Deputy Director of Institute of Process Engineeringï¼CAS, Professor, Doctoral Supervisor, Winner of the Outstanding Young Scientists Fund, Deputy Director of National Key Laboratory of Biochemical Engineering, Director of National Engineering Research Center for Biotechnology (Beijing). System Year Vendor Cores Rmax (GFlop/s) Rpeak (GFlop/s) Mole-8.5 - Mole-8.5 Cluster, Xeon X5520 4C 2.27 GHz, Infiniband QDR, NVIDIA 2050: 2011 29,440: 496,500: 1,012,650 This article reviews the general features of the multiscale structures in particle–fluid systems and the characterization, modeling, and simulation methods for these systems. Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (tentative name, hereinafter referred to as "SIAT") is co-founded by the Shenzhen Municipal Government and Chinese Academy of Sciences, relying on the basis of Shenzhen Advanced Technology Institute, in … It was found that, with the extension of the simulated domain, the average inter-phase slip velocity or inter-phase drag coefficient and the index of heterogeneity increased ini... Gas–solid two-phase flow in CFB risers is characterized by the clustering of solid particles producing dynamical multi-scale structures, and how to quantify such heterogeneity is a critical yet unsolved issue. 2017-Hollow multi-shelled structures with MOFs as template and the application in photocatalytic CO2 reduction. Chemistry . It is the largest institute of Chinese Academy of Sciences in Southwest China. In this article, a meshless met... We have investigated the effect of cohesion and drag models on the bed hydrodynamics of Geldart A particles based on the two-fluid (TF) model. This chapter is a preliminary introduction to many-core programming taking GPU as an example. Institute of Electrical Engineering, Chinese Academy of Sciences Leader of solar cell technology group. Its current research focuses mainly on condensed matter physics, optical physics, atomic and molecular physics, plasma physics, soft matter physics, and condensed matter theory and … UCAS faculty are all based upon the research professors in the Chinese Academy of Sciences, which has been consistently ranked the No. EMPLOYMENT HISTORY. Professor. Collectively known as the "Two Academies (两院)" along with the Chinese Academy of Engineering, it functions as the … In our model problem, fluid is withdrawn from a two-dimensional microcavity through a narrow outlet above the interface of two immiscible fluids. In gas–solid riser flows, meso-scale structures have significant effects on the flow, mass/heat transfer as well as reaction behavior. R&D Professor. ParticleEye: In situ particle parallel visualization software. Meanwhile, recent direct numerical simulations (DNS) have concluded that there is a need to consider the effect of the fluctuat... Polydisperse granular flow has been extensively studied using kinetic theory, where approximations, such as the Taylor series expansion and/or neglect of the contribution of certain terms, were made to derive the constitutive relation due to the difficulties faced in the analytical integration related to pair distribution function. To this end, a multifluid model is established to study the hydrodynamics, heat, mass transfer and chemical reaction in a downer reactor: T... We present a hybrid discrete-continuum model for multi-scale simulation of granular flow. Email: xpzhang@ipe.ac.cn. We systematically study the effect of gas and particle properties on the minimum bubbling velocity of Geldart A particles in gas-fluidized beds using both Eulerian–Eulerian and Eule... Turbulent fluidized bed reactors are widely used in industry. Mission: IPE is dedicated to process engineering research that serves all process industries, undertaking the mission to develop clean and efficient technologies and equipment in conversion of substances through fundamental studies, system … Research Progress More. Studies have shown that the PVDFs in gas-solid flow can be Maxwellian, bimodal and/or non-Maxwellian with an overpopulated high-energy tail. Zhenliang TIAN. doubtful in many situations. 2National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China. In this short communication, topography analysis was carried out to elucidate the mathematical nature of bimodal distri... Multiscale methods have recently underpinned the successful simulation of gas-solid flow. The system is resolved into a liquid phase, small bubbles and large bubbles, and is jointly dominated by two movement tendencies; i.e., those of the small and large bubbles. The Dual-Bubble-Size (DBS) model is an extension of the energy minimization multiscale (EMMS) approach for gas-liquid systems. FFS: fluid catalytic cracking (FCC) full-loop simulation; Solids Residence Time Distribution (RTD) in Circulating Fluidized Bed (CFB) risers has received increasing attention due to its vital role in determining the operating condition, particle property, and reactor geometry in industrial CFB applications. SIBET was co-founded by Chinese Academy of Sciences, Jiangsu provincial government and Suzhou municipal government. 4–6 are extended or improved accordingly. For chemical engineering, it will promote the transition from an experie... Membrane fluidized bed reactors have been proposed and demonstrated as an effective reactor concept for ultrapure hydrogen production with integrated carbon dioxide capture. Four input parameters that can be obtained from CFD simulation, including two slip velocities between gas and each particle phase and two particle... Hydrocyclone has been widely used in particle separation processes. Chinese Scientists, Engineers List Top 10 Scientific, Tech Stories of 2020 . Associate Editor, Chemical Engineering Science Institute of Process Engineering Chinese Academy of Sciences, Beijing, China Prof. Wei Ge got his Ph. Development of uniform-sized and structure-controllable degradable polymer or natural polysaccharides micro/nano-spheres and micro/nano-capsules, which could greatly improve encapsulation efficiency, bioactivity, targetability and bioavailability of biodrugs or anticancer drugs. Faculty. It is the largest institute of Chinese Academy of Sciences in Southwest China. Assistant Professor. A computing scheme is then realized by integrating EMMS drag into the reduced SF... Summarising the whole book, this chapter gives perspectives, derived from the EMMS research, on future directions, particularly, emphasizing the possibility of meso-science and the realization of VPE. In this study, it is used to study the characteristics of RMS of solid volume fraction fluctuation and particle clustering structures in a CFB riser. Junwu WANG, Professor (Full) of Chinese Academy of Sciences, Beijing (CAS) | Read 97 publications | Contact Junwu WANG The Institute of Process Engineering at the University of the Chinese academy of sciences on Academia.edu It has been recognized that the particle phase stress model derived from classical kinetic theory is valid only when sufficient scale resolution is offered to explicitly resolve the heterogeneous structures during numerical simulations, however, industrial applications prefer to use coarse computational grids where the heterogeneous structures are... Studies have found the surprising ability of hydrodynamic theory, which is based on the validity of the local thermodynamic equilibrium postulate, to capture the main features of shock waves in supersonic granular gases. Conservation equations based on the effects of mesoscale behavior, especially those in... School of Microelectronics... Chinese Academy of Sciences ( 9:00 AM June... 28 May2018 LNM Academic ;! 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