基于ANSYS的噴霧器噴嘴流場仿真研究【含有限元】【說明書+CAD+PROE】,含有限元,說明書+CAD+PROE,基于ANSYS的噴霧器噴嘴流場仿真研究【含有限元】【說明書+CAD+PROE】,基于,ansys,噴霧器,噴嘴,仿真,研究,鉆研,有限元,說明書,仿單,cad,proe null 39 null 42010 M 08 / Z SH IP S Z v 8 Z L i b T e : r B ( 1985null) , 3 , V 3 b Z _ :Z ! 9 Enullmail: jiankang 1010 yahoo . com. cn DOI: 10. 3963/ j. issn. 1671null7953. 2010. 04. 047 = 5 H elical Strakes A NSYSnullCFD s r B , ( 中國海洋大學(xué)工程學(xué)院, 山東青島 266100) K null 1 : AN SYSnullCFD q E ( helical str akes) 5 T b = ; 5 5 , v / E s ,| 6 T L T 1 V , V Y 6 M , y , z 3 b 1 o M :Z 5 ; ; ; ; 6 ; A N SY SnullCFD m s | : U 674. 37 null null null null D S : A null null null null c I | : 1671null7953( 2010) 04null0151null05 null null Z 5 s Z 1 a a ab , o Z K 1 Z , s T / 5 V ? 3 ,i B S v = C , P 5 6 M # Y ,s M 1 + b m 1null # null 1 null 數(shù)值計(jì)算 1. 1null l o Z 5 8 5 E s , l o o H , V q i , o T A , Mo rsion T 9 o Fh, n T (1), T (2)9 ; Cm nullnull null ; Cl null nullnull 6 ; nullnullnull null 8 , kg/ m 2; D nullnullnull , m; U nullnullnull , m/ s; dU dt nullnullnull F , m / s 2b Y V L s q M , - B 0. 6 1. 4 W M 5 ; 6 B 0. 25 2. 50 W M 6 b Reynold 9 T / : Re= nullD U (3) T : Re null nullnull v ; null nullnull 8 T , Pa sb Re 150 1. 5 ! 105 S = , 9 q 7 f = 0. 198 UD (1- 19. 7Re ) (4) T : f nullnull null q , H zb f aUaD V F B y Q , Stro uhal Sr V U , S r= f DU b O ( A. Roshko) 1954 M L , Re = 200 1. 5 ! 105 S = , Sr 0. 21b 1. 2null Z E s V SST ,8 knull! C u 9 S knull! 9 ,| knull! S knull! B f M F b C u f 1,y N C u N knull! b C u f 0, y N 1 S knull! b S knull! 1 , SST 9 F _ , H u T l I n u g M V , P u 9 b S knull! Y V p u ? (k)Z u q ()Z , k , k 9 u T ,K Y V BoussinesqL ! v b 1. 3null H H q ANSYSnullCFD q y 2D s n m 1, B 46D ! 28D (D 5 ) , 14D ,/ 32Db m 2b m 2null 8 u m null V u H 9 T Y l b A B Z g H , g , B , u= 1, v = != 0, p= 0; CD g H , L Z _ , , 0 p= nullpnullx = nullpnully= nullpnullz = 0; AC BD H 8 9 u ( : ( slip w all) ! ,C g 0,C 8 i s C Y , nullnulln= 0; C M H q , u= 0, v= != 0b g H H q T 9 S H q b 2 null 模擬結(jié)果 2.1null v Re= 200 E 9 | Strouhal + 1/ 300, 0. 002b V ? , Z aS Z 4 / b V 1null Re= 200 n Re= 200 Cd H ( Cl Sr M Braza 8 ( 1985 N um) 1. 31 0. 65 0. 19 L eco inte( 1989 N um) 1. 29 0. 60 0. 19 Zhang J F ( 1997 N um) 1. 25 0. 54 0. 20 M art inez( 1979 Ex p) 1. 30 0. 70 0. 19 Ro ckw ell( 1988 Ex p) 1. 20 0. 19 9 ( 2006 N um) 1. 29 0. 74 0. 18 T 1. 30 0. 62 0. 20 null null V V 1 V A , v 200 E V L bm 3 H s ,V n B 9 V , b i , P s E 6 H W , E q 6 , 6 H ( 0bV A ANSYSnullCFD z Q l u v C b 152 = 5 Helical Str akes A NSY SnullCF Ds null nullnull r B , m 3null Re= 200 6 aE H W M null 2.2null v Re= 20 000 E P E L = H q , | v Re= 2. 0 ! 104, v b V 2 V A , 1. 27, v L 1. 20, S r 0. 23, L 0. 21 1 ,M D 6 , T z bm 4 b V V b m 4null Re= 200 L m null V 2null Re= 20 000 n Re= 20 000 Cd H ( Cl Sr L u( 1989 N um) 1. 15 0. 60 0. 20 Sun10 ( 1994 N um) 1. 30 0. 80 0. 29 Y okuda11 ( 1990 Exp) 1. 20 0. 21 12 ( 1999 N um) 1. 22 0. 80 0. 23 . 13 ( 2001 N um) 1. 34 0. 50 0. 19 T 1. 27 0. 84 0. 25 null null m 5 V , Re 9 v H , H s K M _ b E A v s , P H s 9 _ - M b H M , . l 9 h b D 14 a 15 L T M , z 1 b m 5null Re= 20 000 m null 2.3null Helical Strakes E M , 1 a # b v | 0. 10Da0. 14Da0. 20D 0. 25D + b L 9 1 , E | V | E , s Y 0. 14D 0. 25D b| V 5 4 4 1 V ,n m 1b)b s V ,? C m 1b) 3 4 z M Q , = E T B b h l 9 , s , - 3 s ) b 1 T , s Q T ,Y V 9 T s 6 a M b m 5 M 1 ,V m 6a7 A V A ? e s , 0. 14D 0. 25D 3 s V H 7 S , H s M , P s b7 ; s V 8 V 7 S bV A 9 F , 8 y ,V 7 P ? b M ,V 7 ,8 C A + , ; 1 ,; s ? 5 , A = + ,s V V 7 3 ? bb V m 8 V A , M 6 Y v , , 5 s 6 ; 5 9 v b H 5 H , m 6a7 V A , b B , H s M , r T 9 B 153 4 / null Z null null 39 m 6null 0.14D L m null m 7null 0.25D L m null ,O b b B H Y , 5 _ 3 6 T Z _ 9 B , V h Z _ T , B V h , z 5 ,h l 5 Y b ) = f ,7 L = B 16b 8 W M T # 5 8 T ,7 P t ? 3 M , P E T L = T B Y , Y V s V , ? z y 5 ,E ? 3 b a) 0. 14D null b) 0. 25D m 8null 3 6 M w L null 3 null 結(jié)論 1) 5 V z e s , P s V ; M , P 8 5 q ? 3 M b 2) ; 5 3 6 v 9 F 7 9 v ;7 , v 9 F , B 3 6 M v , v Y v ; 9 ? 3 v M , ( 0. 8 2. 2 W , L = f b 5 6 ) V , v l M , k / , 6 5 3 D M b 3) ; 5 M 1 , , 154 = 5 Helical Str akes A NSY SnullCF Ds null nullnull r B , B H Y T 5 Z _ B , V z 6 M v # Y q M b , P 5 s 6 # q ? 3 M , O P % ? 3 M , 7 Y 5 , h l ? 3 ,i ? N 5 , r h l 5 b I D 1 VA NDIVER J K, JAISWAL V, M ARCOLL O H . T he effectiveness of helical strakes in the suppression of highnull modenullnumber VIV J . OT C, 2006, 18276: 1null9. 2 T R IM A D, BRA A T EN H , LI E H, et al. Experimennull tal inv est igat ion o f vor texnullinduced v ibrat ion o f long mar ine riser s J . Journal of Fluids and Str uctur es, 2005, 21( 3) : 335null361. 3 CO NST A N T IN IDES Y, O W EN H, OA K LEY O H. N umer ical pr ediction of bar e and st raked cylinder V IV J . OM AE, 2006, 92334: 1null9. 4 BAARHOLM R, LIE H. Systematic parmetric investiganull tion of the efficiency of helical strakes J . Proceedings of the Deep Offshore Techno logy , 2005( 1) : 1null9. 5 L = . T / 8 s J .S / , 2007, 7( 1) : 22null25. 6 CHA KRA BART I S K. T he theory and practice of hydronull dynamics and vibrarion M . US: World Scientific, 2005. 7 null . 8 # , M . : , 2005. 8 BRA ZA M . N umer ical study and physical analysis o f the pressur e and velo city fields in the nea r w ake of a cir cular Cy linder J . Journal of fluids mechanics, 1986, 165: 79null130. 9 , + , x . _ t E J . Z A , 2006, 21( 3) : 299null308. 10 SU N X, DA L T O N C. Application o f tw o SG S mo dnull els t o flow pat a cir cular cylinder. Amer ican Society o f M echanical Eng ineers Z . Fluids Engineer ing Dinull v ision ( P ublicatio n ) F ED T urbulence in Complex F lo ws Pr oceeding s of the 1994 Internatio nal M enull chanica l Eng ineering Congr ess and Ex po sitio n, No v6null l1 1994 V 203 Chicag o, IL, U SA Sponsorel by ASM E N EW Y or k N Y U SA p. 21null29, F EDSDl. 11 YO KU D A S, RA M A PR IA N B R. T he dynamics o f f low aro und a cy linder at subcritical Reyno lds numnull bers J . P hy s Fluids, 1990, A12( 2) : 784null791. 12 ,B R + . v / v E J . , 1999, 31( 1) : 100null105. 13 null . , m . v / E J . Z A , 2001, 16 ( 1) : 101null 100. 14 ? C , , X , .Z s M .? : v , 1992. 15 , 3 , , . SST D ES Z E E J . S Z , 2009, 31( 2) : 13null17. 16 9 V , S , .h CFD s J . S / / , 2007, 48: 475null480. AnsysnullCFD Analysis on the Flow Field of Helical Strakes around Riser YUAN Jiannullkang, HUNANGWeinullping ( Scho ol of Engineering , O cean U niv ersity of China, Q ingdao Shandong 266100, China) Abstract: T he A N SY SnullCFD w as used to st udy the efficiency o f helical str akes t o suppr ess vor texnull induced v ibration ( V IV ) . In t he FE analysis, bare r iser and two r iser models w ith differ ent height of helical strakes config uratio ns wer e simulated under different Re number. T he numerical r esults of drag and lift chang es w ith the curr ent speed var ied wer e co mpar ed w ith that of related t ests sho wing that the helical str akes can affect the drag and lift, dist ur bing t he flo w field so as to suppressing the V IV . Key words: marine riser ; V IV ; helical str akes; dr ag coefficient; lift co efficient; A nsysnullCFD 155