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Search for the rare decays W^(+)→D_(s)^(+)γ and Z→D^(0)γ at LHCb

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Chinese Physics C 2023年第9期47卷 14-26页

作者： r.Aaij A.S.W.Abdelmotteleb C.Abellan Beteta f.Abudinén T.Ackernley B.Adeva M.Adinolfi P.Adlarson H.Afsharnia C.Agapopoulou C.A.Aidala Z.Ajaltouni S.Akar K.Akiba J.Albrecht f.Alessio M.Alexander A.Alfonso Albero Z.Aliouche P.Alvarez Cartelle r.Amalric S.Amato J.L.Amey Y.Amhis L.An L.Anderlini M.Andersson A.Andreianov M.Andreotti D.Andreou D.Ao f.Archilli A.Artamonov M.Artuso E.Aslanides M.Atzeni B.Audurier S.Bachmann M.Bachmayer J.J.Back A.Bailly-reyre P.Baladron rodriguez V.Balagura W.Baldini J.Baptista de Souza Leite M.Barbetti r.J.Barlow S.Barsuk W.Barter M.Bartolini f.Baryshnikov J.M.Basels G.Bassi B.Batsukh A.Battig A.Bay A.Beck M.Becker f.Bedeschi I.B.Bediaga A.Beiter V.Belavin S.Belin V.Bellee K.Belous I.Belov I.Belyaev G.Benane G.Bencivenni E.Ben-Haim A.Berezhnoy *** *** Andres D.Berninghoff H.C.Bernstein C.Bertella A.Bertolin C.Betancourt f.Betti Ia.Bezshyiko S.Bhasin J.Bhom L.Bian M.S.Bieker N.V.Biesuz S.Bifani P.Billoir A.Biolchini M.Birch f.C.r.Bishop A.Bitadze A.Bizzeti M.P.Blago T.Blake f.Blanc J.E.Blank S.Blusk D.Bobulska J.A.Boelhauve O.Boente Garcia T.Boettcher A.Boldyrev C.S.Bolognani r.Bolzonella N.Bondar f.Borgato S.Borghi M.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi M.J.Bradley S.Braun A.Brea rodriguez J.Brodzicka A.Brossa Gonzalo J.Brown D.Brundu A.Buonaura L.Buonincontri A.T.Burke C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai r.Calabrese L.Calefice S.Cali r.Calladine M.Calvi M.Calvo Gomez P.Campana D.H.Campora Perez A.f.Campoverde Quezada S.Capelli L.Capriotti A.Carbone G.Carboni r.Cardinale A.Cardini P.Carniti L.Carus A.Casais Vidal r.Caspary G.Casse M.Cattaneo G.Cavallero V.Cavallini S.Celani J.Cerasoli D.Cervenkov A.J.Chadwick M.G.Chapman M.Charles Ph.Charpentier C.A.Chavez Barajas M.Chefdeville C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Cholak M.Chrzaszcz A.Chubykin V.Chulikov P.Ciambrone M.f.Cicala X.Cid Vidal G.Ciezarek G.Ciullo P.E.L.Clarke M.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cognera Centro Brasileiro de Pesquisas físicas(CBPf) Rio de JaneiroBrazil Universidade federal do rio de Janeiro(UfrJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina Institute Of High Energy Physics(IHEP) BeijingChina School of Physics State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute of Particle Physics Central China Normal UniversityWuhanHubeiChina Université Savoie Mont Blanc CNRSIN2P3-LAPPAnnecyFrance UniversitéClermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance UniversitéParis-Saclay CNRS/IN2P3IJCLabOrsayFrance Laboratoire Leprince-ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance LPNHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikalisches Institut RWTH Aachen UniversityAachenGermany fakultat Physik Technische Universitat DortmundDortmundGermany Max-Planck-Institut für Kernphysik(MPIK) HeidelbergGermany Physikalisches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland INfN Sezione di Bari BariItaly INfN Sezione di Bologna BolognaItaly INfN Sezione di ferrara FerraraItaly INfN Sezione di firenze FirenzeItaly INfN Laboratori Nazionali di frascati FrascatiItaly INfN Sezione di Genova GenovaItaly INfN Sezione di Milano MilanoItaly INfN Sezione di Milano-Bicocca MilanoItaly INfN Sezione di Cagliari MonserratoItaly Universitàdegli Studi di Padova Universitàe INFNPadovaPadovaItaly INfN Sezione di Pisa PisaItaly INfN Sezione di roma La Sapienza RomaItaly INfN Sezione di roma Tor Vergata RomaItaly Nikhef National Institute for Subatomic Physics AmsterdamNetherlands Nikhef National Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands AGH-University of Science and Technology Faculty of Physics and Applied Computer Scienc

A search for the rare decays W^(+)→D_(s)^(+)γ and Z→D0γis performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13TeV,corresponding to an integrated luminosity of 2.0fb−*** significant signal is observed for either decay mode and upper limits on their branching fractions are set using W^(+)→D_(s)^(+)γ and Z→μ+μ−decays as normalization *** upper limits are 6.5×10^(−4) and 2.1×10^(−3) at 95% confidence level for the W^(+)→D_(s)^(+)γ and Z→D^(0)γ decay modes,*** is the first reported search for the Z→D^(0)γ decay,while the upper limit on the W+→D+sγbranching fraction improves upon the previous best limit.

关键词： W/Z boson rare decay upper limit of branching fraction

Transforming one organ into another to overcome challenges in tissue engineering

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Portal Hypertension & Cirrhosis 2022年第2期1卷 116-124页

作者： Zhenzhen Wang Xuejiao Tian Chunming Wang Xiaolong Qi Jordi Gracia‐Sancho Lei Dong State Key Laboratory of Pharmaceutical Biotechnology School of Life SciencesNanjing UniversityNanjingJiangsuChina State Key Laboratory of Quality research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoTaipaMacao SARChina CHESS Center Institute of Portal HypertensionThe First Hospital of Lanzhou UniversityLanzhouGansuChina Department of Visceral Surgery and Medicine InselspitalBern University HospitalUniversity of BernBernSwitzerland Liver Vascular Biology research Group IDIBAPS Research InstituteCIBEREHDBarcelonaSpain Chemistry and Biomedicine Innovative Center Nanjing UniversityNanjingJiangsuChina

Tissue engineering(TE)is promising for the regeneration of failed ***,immune rejection,shortage of seed cells,and unintegrated blood vessels restrict the development and clinical application of *** last factor is the most challenging and *** the mature blood vessel network in existing dispensable organs could be a powerful approach to effectively overcome the *** being remodeled to harbor an immunosuppressive and proregenerative niche,these potential target organs can be transformed into other organs with specific physiological functions,compensating the latter's failed native *** transformation,such as a hepatized spleen,represents an effective and encouraging TE *** this review,we discuss the current development and obstacles of TE and its feasibility and superiority in organ transformation.

关键词： blood vessel immune rejection organ transformation spleen tissue engineering xenotransplantation

Performance and calibration of quark/gluon-jet taggers using 140 fb^(-1) of pp collisions at √s=13 TeV with the ATLAS detector

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Chinese Physics C 2024年第2期48卷 1-25页

作者： G. Aad B. Abbott K. Abeling N.J. Abicht S.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti B.S. Acharya C. Adam Bourdarios L. Adamczyk S.V. Addepalli M.J. Addison J. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik M.N. Agaras J. Agarwala A. Aggarwal C. Agheorghiesei A. Ahmad f. Ahmadov W.S. Ahmed S. Ahuja X. Ai G. Aielli A. Aikot M. Ait Tamlihat B. Aitbenchikh I. Aizenberg M. Akbiyik T.P.A. Åkesson A.V. Akimov D. Akiyama N.N. Akolkar K. Al Khoury G.L. Alberghi J. Albert P. Albicocco G.L. Albouy S. Alderweireldt M. Aleksa I.N. Aleksandrov C. Alexa T. Alexopoulos f. Alfonsi M. Algren M. Alhroob B. Ali H.M.J. Ali S. Ali S.W. Alibocus M. Aliev G. Alimonti W. Alkakhi C. Allaire B.M.M. Allbrooke J.f. Allen C.A. Allendes flores P.P. Allport A. Aloisio f. Alonso C. Alpigiani M. Alvarez Estevez A. Alvarez fernandez M. Alves Cardoso M.G. Alviggi M. Aly Y. Amaral Coutinho A. Ambler C. Amelung M. Amerl C.G. Ames D. Amidei S.P. Amor Dos Santos K.r. Amos V. Ananiev C. Anastopoulos T. Andeen J.K. Anders S.Y. Andrean A. Andreazza S. Angelidakis A. Angerami A.V. Anisenkov A. Annovi C. Antel M.T. Anthony E. Antipov M. Antonelli f. Anulli M. Aoki T. Aoki J.A. Aparisi Pozo M.A. Aparo L. Aperio Bella C. Appelt A. Apyan N. Aranzabal S.J. Arbiol Val C. Arcangeletti A.T.H. Arce E. Arena J-f. Arguin S. Argyropoulos J.-H. Arling O. Arnaez H. Arnold G. Artoni H. Asada K. Asai S. Asai N.A. Asbah J. Assahsah K. Assamagan r. Astalos S. Atashi r.J. Atkin M. Atkinson H. Atmani P.A. Atmasiddha K. Augsten S. Auricchio A.D. Auriol V.A. Austrup G. Avolio K. Axiotis G. Azuelos D. Babal H. Bachacou K. Bachas A. Bachiu f. Backman A. Badea P. Bagnaia M. Bahmani A.J. Bailey V.r. Bailey J.T. Baines L. Baines O.K. Baker E. Bakos D. Bakshi Gupta V. Balakrishnan r. Balasubramanian E.M. Baldin P. Balek E. Ballabene f. Balli L.M. Baltes W.K. Balunas J. Balz E. Banas M. Bandieramonte A. Bandyopadhyay S. Bansal L. Barak M. Barakat E.L. Barberio D. Barberis M. Barbero M.Z. Barel K.N. Barends T. Barillari M-S. Barisits T. Barklow P. Baron D.A. Baron Mo The ATLAS Collaboration

The identification of jets originating from quarks and gluons,often referred to as quark/gluon tagging,plays an important role in various analyses performed at the Large Hadron Collider,as Standard Model measurements and searches for new particles decaying to quarks often rely on suppressing a large gluon-induced *** paper describes the measurement of the efficiencies of quark/gluon taggers developed within the ATLAS Collaboration,using √s=13 TeV proton–proton collision data with an integrated luminosity of 140 fb^(-1) collected by the ATLAS *** taggers with high performances in rejecting jets from gluon over jets from quarks are studied:one tagger is based on requirements on the number of inner-detector tracks associated with the jet,and the other combines several jet substructure observables using a boosted decision tree.A method is established to determine the quark/gluon fraction in data,by using quark/gluon-enriched subsamples defined by the jet *** in tagging efficiency between data and simulation are provided for jets with transverse momentum between 500 GeV and 2 TeV and for multiple tagger working points.

关键词： ATLAS JET QUArK GLUON TAGGING

Optimization of energy consumption structure based on carbon emission reduction target:A case study in Shandong Province,China

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Chinese Journal of Population,resources and Environment 2022年第2期20卷 125-135页

作者： Jixiang Liu Haichao Ma Qingsong Wang Shu Tian Yue Xu Yujie Zhang Xueliang Yuan Qiao Ma Yuan Xu Shuo Yang National Engineering Laboratory for reducing Emissions from Coal Combustion Engineering Research Center of Environmental Thermal Technology of Ministry of EducationShandong Key Laboratory of Energy Carbon Reduction and Resource UtilizationResearch Center for Sustainable DevelopmentSchool of Energy and Power EngineeringShandong UniversityJinanShandong250061China

It is urgent to significantly reduce greenhouse gas emissions to actively deal with global *** paper investigates Shandong Province,a typical province of energy consumption,as the research object,aiming to optimize total energy consumption and consumption structure in the future planning *** paper constructs a methodological system to optimize energy consumption structure in Shandong Province,using a scenario combination of system dynamics(SD)prediction and analysis based on the coupling of key scenario elements affecting different energy consumption from different *** equation modeling and SD sensitivity analysis indicate an overlap between key factors restricting energy *** the key scenario factors can better reflect the internal mechanism of energy consumption *** on this,21 scenarios based on different combinations of the key elements are *** SD prediction and analysis,the most suitable scenario mode for optimizing energy consumption structure in Shandong Province is *** paper provides a suitable development range for the average gross domestic product growth rate,the proportion of secondary industry,energy consumption intensity of secondary industry,and the urbanization rate for Shandong *** paper can provide a reference for similar research and the government in formulating the optimization scheme of energy consumption structure.

关键词： Energy consumption structure System dynamics Structural equation Scenario combination analysis Carbon emissions Optimization research

Evidence of a J/ψΛstructure and observation of excited■^(-)states in the■b^(-)→J/ψΛK^(-) decay

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Science Bulletin 2021年第13期66卷 1278-1287,M0003页

作者： r.Aaij C.Abellán Beteta T.Ackernley B.Adeva M.Adinolfi H.Afsharnia C.A.Aidala S.Aiola Z.Ajaltouni S.Akar J.Albrecht f.Alessio M.Alexander A.Alfonso Albero Z.Aliouche G.Alkhazov P.Alvarez Cartelle S.Amato Y.Amhis L.An L.Anderlini A.Andreianov M.Andreotti f.Archilli A.Artamonov M.Artuso K.Arzymatov E.Aslanides M.Atzeni B.Audurier S.Bachmann M.Bachmayer J.J.Back S.Baker P.Baladron rodriguez V.Balagura W.Baldini J.Baptista Leite r.J.Barlow S.Barsuk W.Barter M.Bartolini f.Baryshnikov J.M.Basels G.Bassi B.Batsukh A.Battig A.Bay M.Becker f.Bedeschi I.Bediaga A.Beiter V.Belavin S.Belin V.Bellee K.Belous I.Belov I.Belyaev G.Bencivenni E.Ben-Haim A.Berezhnoy *** D.Berninghoff H.C.Bernstein C.Bertella E.Bertholet A.Bertolin C.Betancourt f.Betti Ia.Bezshyiko S.Bhasin J.Bhom L.Bian M.S.Bieker S.Bifani P.Billoir M.Birch f.C.r.Bishop A.Bizzeti M.Bj┆rn M.P.Blago T.Blake f.Blanc S.Blusk D.Bobulska J.A.Boelhauve O.Boente Garcia T.Boettcher A.Boldyrev A.Bondar N.Bondar S.Borghi M.Borisyak M.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi M.J.Bradley S.Braun A.Brea rodriguez M.Brodski J.Brodzicka A.Brossa Gonzalo D.Brundu A.Buonaura C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai r.Calabrese L.Calefice L.Calero Diaz S.Cali r.Calladine M.Calvi M.Calvo Gomez P.Camargo Magalhaes A.Camboni P.Campana A.f.Campoverde Quezada S.Capelli L.Capriotti A.Carbone G.Carboni r.Cardinale A.Cardini I.Carli P.Carniti L.Carus K.Carvalho Akiba A.Casais Vidal G.Casse M.Cattaneo G.Cavallero S.Celani J.Cerasoli A.J.Chadwick M.G.Chapman M.Charles Ph.Charpentier G.Chatzikonstantinidis C.A.Chavez Barajas M.Chefdeville C.Chen S.Chen A.Chernov S.-G.Chitic V.Chobanova S.Cholak M.Chrzaszcz A.Chubykin V.Chulikov P.Ciambrone M.f.Cicala X.Cid Vidal G.Ciezarek P.E.L.Clarke M.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cogneras L.Cojocariu P.Collins T.Colombo L.Congedo A.Contu N.Cooke G.Coombs G.Corti C.M.Costa Sobral B.Couturier D.C.Craik J.Crkovská M.Cruz Torres r.Currie C.L.Da Silva E.Dall’ Centro Brasileiro de Pesquisas físicas(CBPf) Rio de JaneiroBrazil Universidade federal do rio de Janeiro(UfrJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina School of Physics State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute Of High Energy Physics(IHEP) BeijingChina Institute of Particle Physics Central China Normal UniversityWuhanHubeiChina Univ.Grenoble Alpes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance UniversitéClermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance UniversitéParis-Saclay CNRS/IN2P3IJCLabOrsayFrance Laboratoire Leprince-ringuet(llr) PalaiseauFrance LPNHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikalisches Institut RWTH Aachen UniversityAachenGermany fakultät Physik Technische Universität DortmundDortmundGermany Max-Planck-Institut für Kernphysik(MPIK) HeidelbergGermany Physikalisches Institut Ruprecht-Karls-Universität HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland INfN Sezione di Bari BariItaly INfN Sezione di Bologna BolognaItaly INfN Sezione di ferrara FerraraItaly INfN Sezione di firenze FirenzeItaly INfN Laboratori Nazionali di frascati FrascatiItaly INfN Sezione di Genova GenovaItaly INfN Sezione di Milano-Bicocca MilanoItaly INfN Sezione di Milano MilanoItaly INfN Sezione di Cagliari MonserratoItaly Universita degli Studi di Padova Universita e INFNPadovaPadovaItaly INfN Sezione di Pisa PisaItaly INfN Sezione di roma Tor Vergata RomaItaly INfN Sezione di roma La Sapienza RomaItaly Nikhef National Institute for Subatomic Physics AmsterdamNetherlands Nikhef National Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences KrakówPoland AGH-University of Science and Techno

first evidence of a structure in the J/ψΛinvariant mass distribution is obtained from an amplitude analysis of■b^(-)J/ψΛK^(-)*** observed structure is consistent with being due to a charmonium pentaquark with strangeness with a significance of 3.1r including systematic uncertainties and lookelsewhere *** mass and width are determined to be 4458:8±2:9t4:7-1:1 MeV and 17:3±6:5t8:0-5:7 MeV,respectively,where the quoted uncertainties are statistical and *** structure is also consistent with being due to two *** addition,the narrow excited■^(-)states,N■(1690)and■(1820),are seen for the first time in a■b^(-)decay,and their masses and widths are measured with improved *** analysis is performed using pp collision data corresponding to a total integrated luminosity of 9 fb^(-1),collected with the LHCb experiment at centre-of-mass energies of 7,8 and 13 TeV.

关键词： QCD Exotics Pentaquark Spectroscopy Quarkonium Particle and resonance production

Measurement of the lifetimes of promptly produced Ω_(c)^(0) and Ξ_(c)^(0) baryons

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Science Bulletin 2022年第5期67卷 479-487,M0003页

作者： LHCb Collaboration LHCb Collaboration

A measurement of the lifetimes of theΩ_(c)^(0)andΞ_(c)^(0)baryons is reported using proton-proton collision data at a centre-of-mass energy of 13 TeV,corresponding to an integrated luminosity of 5.4 fb;collected by the LHCb ***Ω_(c)^(0)andΞ_(c)^(0)baryons are produced directly from proton interactions and reconstructed in the p K^(-)K^(+)π^(+)nal ***Ω_(c)^(0)lifetime is measured to be 276.5±13.4±4.4±0.7 fs,and theΞ_(c)^(0)lifetime is measured to be 148.0±2.3±2.2±0.2 fs,where the first uncertainty is statistical,the second systematic,and the third due to the uncertainty on the D^(0)*** results con firm previous LHCb measurements based on semileptonic beauty-hadron decays,which disagree with earlier results of a four times shorterΩ_(c)^(0)lifetime,and provide the single most precise measurement of theΩ_(c)^(0)lifetime.

关键词： Charmed baryon flavour physics QCD Lifetime Charm physics LHCb

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颅内镜像动脉瘤的外科治疗

中华外科杂志 2013年第10期51卷 912-915页

作者：孙正辉武琛王芙昱薛哲许百男周定标解放军总医院神经外科北京100853

目的探讨颅内镜像动脉瘤的临床特点和治疗策略.方法回顾性研究2007年11月至2012年11月治疗的19例20对颅内镜像动脉瘤患者资料.其中男性6例,女性13例,年龄32～75岁,平均56岁.双侧后交通动脉瘤11例（其中1例伴发双侧脉络膜前动脉瘤）,... 详细信息

目的探讨颅内镜像动脉瘤的临床特点和治疗策略.方法回顾性研究2007年11月至2012年11月治疗的19例20对颅内镜像动脉瘤患者资料.其中男性6例,女性13例,年龄32～75岁,平均56岁.双侧后交通动脉瘤11例（其中1例伴发双侧脉络膜前动脉瘤）,双侧大脑中动脉分叉部动脉瘤4例,双侧床突旁动脉瘤3例,双侧胼周-胼缘动脉瘤1例.根据出血部位、Hunt-Hess临床分级、动脉瘤的部位、大小等制定手术策略.结果一期同时夹闭两侧动脉瘤4例,二期分次夹闭两侧动脉瘤3例,手术夹闭联合介入栓塞动脉瘤2例,只处理一侧动脉瘤10例.出院时格拉斯哥评分（GOS）5分者15例（15/19）,4分（轻残）4例（4/19）.术后随访3～ 50个月,平均18.6个月.2例术后出现动眼神经麻痹,随访3个月1例恢复,1例未好转.10例对侧动脉瘤未处理者动脉瘤直径均小于5 mm且形态规则,为未破裂动脉瘤.9例一期或二期处理双侧镜像动脉瘤的患者随访时无动脉瘤残颈或复发.结论颅内镜像动脉瘤是多发动脉瘤的一种特殊类型,应优先处理责任动脉瘤,对侧未破裂动脉瘤可以采取观察、一期同时处理或二期延期处理等策略.

关键词：颅内动脉瘤神经外科手术治疗结果

新型半干式旋流脱硫塔内气固两相流的数值模拟研究

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现代化工 2017年第2期37卷 184-187页

作者：宋健斐王迪张慧敏侯智中国石油大学(北京)重质油国家重点实验室北京102249 过程流体过滤与分离技术北京市重点实验室北京102249 中国蓝星(集团)股份有限公司北京100029

提出了一种新型半干式旋流脱硫塔,并采用雷诺应力模型(rSM)和颗粒随机轨道模型(DPM)考察了脱硫塔内气相和气固两相流场的特征。研究结果表明,该装置具有实现脱硫反应、气固分离及脱硫剂循环利用三者一体的可行性,增加了烟气在反应器内... 详细信息

提出了一种新型半干式旋流脱硫塔,并采用雷诺应力模型(rSM)和颗粒随机轨道模型(DPM)考察了脱硫塔内气相和气固两相流场的特征。研究结果表明,该装置具有实现脱硫反应、气固分离及脱硫剂循环利用三者一体的可行性,增加了烟气在反应器内的路径,有助于脱硫反应的深度进行。同时,较高的切向速度可有效防止黏壁、结垢现象发生。

关键词：半干法旋流脱硫塔气固两相流 rSM DPM