Intrinsic relationship of vorticity between modes A and B in the wake of a bluff body-中国Betway体育网页登陆

摘要 TheintrinsicphysicalrelationshipofvorticitybetweenmodesAandBinthethree-dimensionalwaketransitionisinvestigated.Directnumericalsimulationsfortheflowpastasquare-sectioncylinderarecarriedoutatReynoldsnumbersof180and250,associatedwithmodesAandB,respectively.Basedontheanalysisofspacialdistributionsofvorticityinthenearwake,characteristicsoftheverticalvorticityinmodesAandBareidentified.Moreover,therelationshipofthreevorticitycomponentswithspecificsignsissummarizedintotwosignlaws,asintrinsicphysicalrelationshipsbetweentwoinstabilitymodes.Bythetheoryofvortex-inducedvortex,suchtwosignlawsconfirmthattherearetwoandonlytwokindsofvortex-sheddingpatternsinthenearwake,justcorrespondingtomodesAandB.Inbrief,alongthefreestreamdirection,modeAcanbedescribedbytheparallelsheddingverticalvorticeswiththesamesign,whilemodeBisdescribedbytheparallelsheddingstreamwisevorticeswiththesamesign.Finally,itisfoundoutthatthe-typevortexisabasickindofvortexstructureinbothmodesAandB.

1丁治英;赵向军;高松;罗亚丽.A NOVEL METHOD FOR CALCULATING VERTICAL VELOCITY：A RELATIONSHIP BETWEEN HORIZONTAL VORTICITY AND VERTICAL MOVEMENT.大气科学及气象学,2016-02.
2Mari Nishitani;Toshiki Matsuda.The Relationship Between Language Anxiety, Interpretation of Anxiety, Intrinsic Motivation and the Use of Learning Strategies.教育学,2011-03.
3Kanae Oda;Nobuyuki Miyatake;Noriko Sakano;Takeshi Saito;Motohiko Miyachi;Izumi Tabata;Takeyuki Numata.Relationship between peak oxygen uptake and regional body composition in Japanese subjects.体育学,2014-03.
4丁治英;高松;常越.RELATIONSHIP BETWEEN THE VARIATION IN HORIZONTAL VORTICITY AND HEAVY RAIN DURING THE PROCESS OF MCC TURNING INTO BANDED MCSS.大气科学及气象学,2016-02.
5赵向军;丁治英.THE RELATIONSHIP BETWEEN HORIZONTAL VORTICITY INDUCED BY VERTICAL SHEAR AND VERTICAL MOTION DURING A SQUALL LINE PROCESS.大气科学及气象学,2018-01.
6李刚;严清波;魏良明.Relationship Between Serum Leptin Concentration and Lipids ＆ Body Mass Index in Patients With Chronic Congestive Heart Failure.心血管疾病,2006-01.
7邱世才.The Relationship Between Students.教育学,2005-01.
8Bing Ge Shu-Sheng Zang.Experimental Study on the Interactions for Bluff-body and Swirl in Stabilized Flame Process.物理,2012-01.
9Yaqing Li;Honglei Bai;Nan Gao.Drag of a D-shaped bluff body under small amplitude harmonic actuation.力学,2015-01.
10admin.The relationship between research and design.文化科学,2019-04.

Intrinsic relationship of vorticity between modes A and B in the wake of a bluff body

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