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112篇 您的检索式:作者名="Sint"
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1Discrete particle modeling of granular temperature distribution in a bubbling fluidized bed显示文摘The discrete hard sphere particle model (DPM) is applied in this work to study numerically the distributions of particle and bubble granular temperatures in a bubbling fluidized bed. The dimensions of the bed and other parameters are set to correspond to those of Müller et al. (2008). Various drag models and operational parameters are investigated to find their influence on particle and bubble granular temperatures. Various inlet superficial gas velocities are used in this work to obtain their effect on flow characteristics. It is found that the superficial gas velocity has the most important effect on granular temperatures including bubble granular temperature, particle translational granular temperature and particle rotational granular temperature. The drag force model affects more seriously the large scale variables such as the bubble granular temperature. Restitution coefficient influences all granular temperatures to some degree. Simulation results are compared with experimental results by Müller et al. (2008) showing reasonable agreement.Yurong He Tianyu Wang Niels Deen Martin van Sint Annaland Hans Kuipers Dongsheng Wen 2012Particuology2012,10,4:4
2COMPUTATIONAL FLUID DYNAMICS FOR DENSE GAS-SOLID FLUIDIZED BEDS: A MULTI-SCALE MODELING STRATEGY显示文摘Dense gas-particle flows are encountered in a variety of industrially important processes for large scale production of fuels, fertilizers and base chemicals. The scale-up of these processes is often problematic and is related to the intrinsic complexities of these flows which are unfortunately not yet fully understood despite significant efforts made in both academic and industrial research laboratories. In dense gas-particle flows both (effective) fluid-particle and (dissipative) particle-particle interactions need to be accounted for because these phenomena to a large extent govern the prevailing flow phenomena, i.e. the formation and evolution of heterogeneous structures. These structures have significant impact on the quality of the gas-solid contact and as a direct consequence thereof strongly affect the performance of the process. Due to the inherent complexity of dense gas-particles flows, we have adopted a multi-scale modeling approach in which both fluid-particle and particle-particle interactions can be properly accounted for. The idea is essentially that fundamental models, taking into account the relevant details of fluid-particle (lattice Boltzmann model) and particle-particle (discrete particle model) interactions, are used to develop closure laws to feed continuum models which can be used to compute the flow structures on a much larger (industrial) scale. Our multi-scale approach (see Fig. 1 ) involves the lattice Boltzmann model, the discrete particle model, the continuum model based on the kinetic theory of granular flow and the discrete bubble model. In this paper we give an overview of the multi-scale modeling strategy, accompanied by illustrative computational results for bubble formation. In addition, areas which need substantial further attention will be highlighted.M. A. van der Hoef M. van Sint Annaland J. A. M. Kuipers 2005China Particuology2005,3,1:4
3Borescopic particle image velocimetry in bubbling gas-solid fluidized beds显示文摘In this work, the borescopic particle image velocimetry (BPIV) technique was applied to a bubbling gas-solid fluidized bed, and the results were compared with published positron emission particle tracking (PEPT) measurement data. Before performing the experiments, the sensitivity of the BPIV results to the illumination power, light reflectivity of the particles, and location of the borescope was also investigated. The BPIV and PEPT results were in fair agreement;however, some discrepancies were observed.The difference between the two sets of results were mainly caused by the intrusiveness of BPIV, the fact that the local solids volume fraction was not accounted for in the BPIV analysis, and the intrinsic differences of these two methods. Therefore, measurement of the local solids volume fraction with the borescope is highly recommended for further development of the BPIV method, which will also enable measureme nt of the local solids mass fluxes in side dense gas-solid fluidized beds.M. Banaei R. Dellaert N.G. Deen J.A.M. Kuipers M. van Sint Annaland 2019Particuology2019,17,2:2
4Increased incidence of early de novo cancer in liver graft recipients treated with cyclosporine: An association with C显示文摘Angela S. W. Tjon Jerome Sint Nicolaas Jaap Kwekkeboom Robert A. de Man Geert Kazemier Hugo W. Tilanus Bettina E. Hansen Luc J. W. van der Laan Thanyalak Tha‐In Herold J. Metselaar 2010Liver Transpl2010,,7:2
5Review of discrete particle modeling of fluidized beds 显示文摘DEEN N G van SINT ANNALAND M van der HOEF M A 2007Chemical Engineering Science2007,62,1820:1
6Critical comparison of hydrodynamic models for gas-solid fluidized beds-- Part I: bubbling gas-solid fluidized beds operated with a jet显示文摘Patil D J van Sint Annaland M Kuipers J A M 2005Chemical Engineering Science2005,60,1:1
7The Global Rating Scale in clinical practice: A comprehensive quality assurance programme for endoscopy departments显示文摘Jerome Sint Nicolaas Vincent de Jonge Robert A. de Man Frank ter Borg Djuna L. Cahen Willem Moolenaar Mark F.J. Stolk Antonie J.P. van Tilburg Roland M. Valori Monique E. van Leerdam Ernst J. Kuipers 2012Digestive and Liver Disease2012,,11:1
8Selective ion passage through functionalized graphene nanopores显示文摘Sint K Wang B Y Kral P 2008J Am Chem Soc2008,130,16:1
9Wall-to-bed heat transfer in gas-solid bubbling fluidized beds显示文摘Patil D J Annaland M van Sint Kuipers J A M 2006AIChE Journal2006,52,1:1
10Translational Research Investigating Biomarker Endpoints in Acute Kidney Injury Consortium: Preoperative proteinuria pre dicts acute kidney injury in patients undergoing cardi- ac surgery显示文摘Coca SG Jammalamadaka D Sint K 2012J Thorac Cardiovasc Surg2012,143,:1
11Abundance and distribution of archaeal acetyl-CoA/propionyl-CoA carboxylase genes indicative for putatively chemoautotrophic Archaea in the tropical Atlantic's interior 显示文摘BERGAUER K SINTES E VAN BLEIJSWIJK J 2013FEMS Microbiology Ecology2013,84,:1
12A novel power planes with low radiation and broadband suppression of ground bounce noise using photonic bandgap structures 显示文摘Wu Tzonglin Lin Yenhui Chen Sinting 2004IEEE Microwave and Wireless Componets Letters2004,14,7:1
13TRIBE-AKI Consortium: Postoperative biomarkers predict acute kidney injury and poor outcomes after pediatric cardiac surgery显示文摘Parikh CR Devarajan P Zappitelli M Sint K 2011J Am Soc Nephrol2011,22,:1
14Strength and failure modes of rock mass models with non-persistent joints 显示文摘M Prudencio Van Sint Jan M 2007International Journal of Rock Mechanics & Mining Sciences2007,44,6:1
15Review of discrete particle modeling of fluidized beds显示文摘Deen N G van Sint Annaland M Van der Hoef M A 2007Chemical Engineering Science2007,62,:1
16Selection of A1resistance Plants from a sensitire rice cultivar,using somaclonal variation,in vitro and hydroponic cultures显示文摘Sint JanV van Costa de Macedo C Kinet J M 1997Euphytica1997,3,:1
17Fluidizedbed membrane reactor for ultrapure hydrogen productionvia methane steam reforming:Experimental demonstrationand model validation显示文摘Patil C S van Sint Annaland M Kuipers J A M 2007Chemical Engineering Science2007,62,11:1
18Strength and failure modes of rock mass models with non - persistent joints 显示文摘Prndencio M M Van Sint Jan 2007International Journal of Rock Me- chanics & Mining Science2007,44,:1
19Numericalsimulation of gas bubbles behaviour using a three-dimensionalvolume of fluid method显示文摘van Sint Annaland M Deen N G Kuipers JAM 2005Chemistry Engineering Science2005,60,11:1
20Experimental investigation of a CuO/Al2O3 oxygen carrier for chemical-looping combustion 显示文摘Noorman S Gallucci F Sint A M 2010Industrial & Engineering Chemistry Research2010,49,20:1
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