P1985-12
Fifteenth Symposium
NAVAL
HYDRODYNAMICS
Seakeeping Problems
Hull-Propeller Interactions
Nonlinear Free-Surface Problems
Frontier Problems in Hydrodynamics
sponsored j o i n t l y by
O F F I C E O F N A V A L R E S E A R C H
H A M B U R G I S C H E S C H I F F B A U V E R S U C H S A N S T A L T
N A V A L S T U D I E S B O A R D
C O M M I S S I O N O N P H Y S I C A L S C I E N C E S , M A T H E M A T I C S
A N D R E S O U R C E S
N A T I O N A L R E S E A R C H C O U N C I L
N A T I O N A L A C A D E M Y PRESS Washington, D.C. 1985N O T I C E : T h e p r o j e c t t h a t i s t h e s u b j e c t o f t h i s r e
-p o r t was a -p -p r o v e d b y t h e G o v e r n i n g B o a r d o f t h e N a t i o n a l
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o f t h e N a t i o n a l A c a d e m y o f S c i e n c e s , t h e N a t i o n a l A c a d e m y
o f E n g i n e e r i n g , a n d t h e I n s t i t u t e o f M e d i c i n e . T h e
mem-b e r s o f t h e c o m m i t t e e r e s p o n s i mem-b l e f o r t h e r e p o r t w e r e
c h o s e n f o r t h e i r s p e c i a l c o m p e t e n c e s a n d w i t h r e g a r d f o r
a p p r o p r i a t e b a l a n c e .
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t h e a u t h o r s a c c o r d i n g t o p r o c e d u r e s a p p r o v e d by a R e p o r t
R e v i e w C o m m i t t e e c o n s i s t i n g o f m e m b e r s o f t h e N a t i o n a l
A c a d e m y o f S c i e n c e s , t h e N a t i o n a l A c a d e m y o f E n g i n e e r i n g ,
a n d t h e I n s t i t u t e o f M e d i c i n e .
T h e N a t i o n a l R e s e a r c h C o u n c i l w a s e s t a b l i s h e d by t h e
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c o m m u n i t y o f s c i e n c e a n d t e c h n o l o g y w i t h t h e A c a d e m y ' s
p u r p o s e s o f f u r t h e r i n g k n o w l e d g e a n d o f a d v i s i n g t h e
f e d e r a l g o v e r n m e n t . T h e C o u n c i l o p e r a t e s i n a c c o r d a n c e
w i t h g e n e r a l p o l i c i e s d e t e r m i n e d by t h e A c a d e m y u n d e r t h e
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e s t a b l i s h e s t h e A c a d e m y a s a p r i v a t e , n o n p r o f i t , s e l f
-g o v e r n i n -g m e m b e r s h i p c o r p o r a t i o n . T h e C o u n c i l h a s b e c o m e
t h e p r i n c i p a l o p e r a t i n g a g e n c y o f b o t h t h e N a t i o n a l A c a d e m y
o f S c i e n c e s a n d t h e N a t i o n a l A c a d e m y o f E n g i n e e r i n g i n t h e
c o n d u c t o f t h e i r s e r v i c e s t o t h e g o v e r n m e n t , t h e p u b l i c ,
and t h e s c i e n t i f i c a n d e n g i n e e r i n g c o m m u n i t i e s . I t i s
a d m i n i s t e r e d j o i n t l y by b o t h a c a d e m i e s a n d t h e I n s t i t u t e
o f M e d i c i n e . T h e N a t i o n a l A c a d e m y o f E n g i n e e r i n g a n d t h e
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t h e D e p a r t m e n t o f t h e N a v y o r t h e g o v e r n m e n t , a n d no o f f i
-c i a l e n d o r s e m e n t s h o u l d be i n f e r r e d .
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-f r e e , n o n e x c l u s i v e a n d i r r e v o c a b l e l i c e n s e t h r o u g h o u t t h e
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-p r o d u c e , d e l i v e r , -p e r f o r m , d i s -p o s e o f , a n d t o a u t h o r i z e
o t h e r s s o t o do, a l l o r a n y o f t h i s w o r k .
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P r i n t e d i n t h e U n i t e d S t a t e s o f A m e r i c a
PAPERS
COmiTTEE
Odo^ Krappinger Hamburgische°Schi^ffbau-Versuchsanstalt Ralph D. Cooper Flow Research I n c . Harald G.G. K e i l Technical U n i v e r s i t y Hamburg-Harburg Choung M. Lee O f f i c e of Naval Research W i l l i a m B. MorganDavid W. Taylor Naval Ship Research and Development Center J . Nicholas Newman Massachusetts I n s t i t u t e of Technology Horst Nowacki Technical U n i v e r s i t y B e r l i n Virendra C. Patel U n i v e r s i t y of Iowa Michael Schmiechen
Versuchsanstalt fUr Wasserbau und S c h i f f b a u B e r l i n H e i n r i e h Söding
I n s t i t u t fUr Schiffbau Hamburg
ORGANIZING COWITTEE
Harald G.G. Keil Technical U n i v e r s i t y Hamburg-Harburg JUrgen Friesch Hamburgische S c h i f f b a u - V e r s u c h s a n s t a l t Odo Krappinger Hamburgische S c h i f f b a u - V e r s u c h s a n s t a l t Som D. SharmaI n s t i t u t fUr Schiffbau Hamburg
SYMPOSIUM AIDES
A s t r i d Wischhusen
Hamburgische S c h i f f b a u - V e r s u c h s a n s t a l t J u t t a Hamer
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K u u e L u n . i 1. v^.-.v-x» X—• 'G e n e r a l M o t o r s C o r p o r a t i o n
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T e c h n o l o g y
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P h i l i p M. D i a m o n d
T h e A e r o s p a c e C o r p o r a t i o n
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L o s A n g e l e s , C a l i f o r n i a
W i l l i s M. H a w k i n s
L o c k h e e d C o r p o r a t i o n
R o b e r t J . H e r m a n n
U n i t e d T e c h n o l o g i e s
J o h n C . H o p k i n s
L o s A l a m o s N a t i o n a l
L a b o r a t o r y
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C o n s u l t a n t s I n t e r n a t i o n a l
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T e x a s I n s t r u m e n t s
D a v i d E . Mann
P h y s i c a l D y n a m i c s , I n c .
V i n c e n t V. McRae
IBM - F e d e r a l S y s t e m s
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E x e c u t i v e D i r e c t o r
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FOREWORD T h e F i f t e e n t h S y m p o s i u m o n N a v a l H y d r o d y n a m i c s w a s h e l d i n H a m b u r g , F e d e r a l R e p u b l i c o f G e r -m a n y , o n S e p t e -m b e r 2 - 7 , 0 9 8 4 , u n d e r t h e j o i n t s p o n s o r s h i p o f t h e O f f i c e o f N a v a l R e s e a r c h , t h e N a t i o n a l R e s e a r c h C o u n c i l , a n d t h e H a m b u r -g i s c h e S c h i f f b a u - V e r s u c h s a n s t a l t ( H S V A ) w i t h t h e s u p p o r t o f I n s t i t u t f u r S c h i f f b a u , t h e D e u t s c h e F o r s c h u n g s g e m e i n s c h a f t , a n d t h e F r e i e und H a n s e s t a d t H a m b u r g . T h e s y m p o s i u m w a s t h e c u l m i n a t i o n o f s e v e r a l y e a r s o f i n t e n s e a n d c a r e f u l p r e p a r a t i o n , a n d i t s s u c c e s s i s a r e -s u l t o f t h e d e d i c a t i o n o f m a n y p e o p l e i n v o l v e d i n t h a t w o r k . T h e t r a d i t i o n a l p o l i c y o f f e a t u r i n g c u r -r e n t -r e s e a -r c h -r e s u l t s i n i m p o -r t a n t p -r o b l e m a r e a s i n s h i p h y d r o d y n a m i c s w a s r e f l e c t e d i n t h e s e l e c t i o n o f t h e m a j o r t h e m e s o f t h e s y m -p o s i u m . T h e f o u r m a j o r t h e m e s w e r e S e a k e e -p i n g P r o b l e m s ; H u l l P r o p e l l e r I n t e r a c t i o n s ; N o n -l i n e a r F r e e - S u r f a c e P r o b -l e m s ; a n d F r o n t i e r P r o b l e m s i n H y d r o d y n a m i c s . Two s e s s i o n s w e r e a l l o c a t e d f o r e a c h t h e m e , e x c e p t f o r t h e l a s t t h e m e , w h i c h h a d o n l y o n e s e s s i o n . T h i r t y -t h r e e p a p e r s o f e x c e l l e n -t -t e c h n i c a l q u a l i -t y w e r e p r e s e n t e d . P a r t i c i p a n t s c a m e f r o m a s m a n y a s t w e n t y - f o u r c o u n t r i e s . A h i g h l i g h t o f t h e s y m p o s i u m w a s t h e S e v e n t h G e o r g W e i n b l u m M e m o r i a l L e c t u r e , g i v e n a s a n o p e n i n g t e c h n i c a l s e s s i o n . T h e l e c t u r e g i v e n b y P r o f e s s o r M a r s h a l l P . T u l i n o f t h e U n i v e r s i t y o f C a l i f o r n i a a t S a n t a B a r -b a r a o n " S u r f a c e W a v e s f r o m t h e R a y P o i n t o f V i e w " w a s a n i n s p i r i n g e x a m p l e o f c h a l l e n g -i n g s h -i p h y d r o d y n a m -i c s r e s e a r c h . T h e r e i s n o w a y t o p r o p e r l y a c k n o w l e d g e a l l t h e c o n t r i b u t i o n s m a d e b y many p e o p l e t o t h e s u c c e s s o f t h e F i f t e e n t h S y m p o s i u m o n N a v a l H y d r o d y n a m i c s . O n l y a f e w c o n t r i b u t i o n s c a n b e m e n t i o n e d h e r e . Among t h o s e c o n t r i b u -t o r s , f i r s -t a n d f o r e m o s -t i s P r o f e s s o r D r . - l n g . Odo K r a p p i n g e r o f t h e H S V A , who s e r v e d a s c o -c h a i r r a a n o f t h e P r o g r a m C o m m i t t e e a n d w a s t h e c e n t r a l c o o r d i n a t o r i n G e r m a n y f o r a l l a c t i v i t i e s i n v o l v e d i n t h e o r g a n i z a t i o n a n d m a n a g e -m e n t o f t h e s y -m p o s i u -m . He w a s a b l y a s s i s t e d by P r o f e s s o r H. K e i l o f T e c h n i c a l U n i v e r s i t y H a m b u r g H a r b u r g , P r o f e s s o r S.D. S h a r m a o f I n -s t i t u t f u r S c h i f f b a u H a m b u r g , a n d D i p l . - I n g . J . F r i e s c h o f H S V A . P r o f e s s o r K e i l , o f a l l t h e O r g a n i z i n g C o m m i t t e e m e m b e r s , d e s e r v e s a s p e c i a l a c k n o w l e d g m e n t f o r h i s u n t i r i n g e f -f o r t s i n e n s u r i n g a p l e a s a n t a n d c o n s t r u c t i v e s c i e n t i f i c a n d s o c i a l a t m o s p h e r e f o r t h e s y m -p o s i u m . T h e a c k n o w l e d g m e n t w o u l d n o t s e r v e i t s f u l l p u r p o s e i f t h e g r a c i o u s a n d d e d i c a t e d s e r v i c e o f F r a u A s t r i d W i s c h h u s e n o f HSVA w e r e n o t m e n t i o n e d . S h e h a s p e r h a p s b e e n t h e m a j o r w o r k e r b e h i n d t h e s c e n e i n c a r r y i n g o u t a l l t h e m a n y a d m i n i s t r a t i v e t a s k s . T h e D e u t s c h e F o r s c h u n g s g e m e i n s c h a f t i s a l s o g r a t e f u l l y a c -k n o w l e d g e d f o r p r o v i d i n g e n c o u r a g e m e n t a n d f i n a n c i a l s u p p o r t f o r t h e s y m p o s i u m , a s i s t h e F r e i e u n d H a n s e s t a d t H a m b u r g f o r p r o v i d i n g t h e e l e g a n t a n d f u n c t i o n a l C o n g r e s s C e n t e r f o r t h e s y m p o s i u m s i t e . A s i m i l a r e x p r e s s i o n o f a p p r e c i a t i o n i s e x t e n d e d t o t h e f o l l o w i n g t h r e e i n d i v i d u a l s f o r t h e i r i n s p i r i n g a d d r e s s e s d u r -i n g t h e o p e n -i n g c e r e m o n -i e s : H e r r P a w e l c z y k , B u r g e r m e i s t e r H a m b u r g ; P r o f e s s o r P f a r r , V i c e P r e s i d e n t o f t h e U n i v e r s i t y o f H a m b u r g ; a n d D r . F r a n k P r e s s , P r e s i d e n t o f N a t i o n a l A c a d -emy o f S c i e n c e s ( w h o s e a d d r e s s w a s r e a d b y Mr. R a l p h C o o p e r o f t h e N a t i o n a l R e s e a r c h C o u n c i l ) . A s u c c e s s f u l s y m p o s i u m w o u l d n o t h a v e b e e n p o s s i b l e w i t h o u t t h e a b l e a s s i s t a n c e a n d c o o r d i n a -t i o n o f Mr. L e e M. H u n -t , E x e c u -t i v e D i r e c -t o r o f t h e N a v a l S t u d i e s B o a r d o f t h e N a t i o n a l R e -s e a r c h C o u n c i l , a n d M-s. E l i z a b e t h L u c k -s o f h i -s s t a f f . T h e y c a r r i e d o u t t h e t r e m e n d o u s t a s k o f p u b l i s h i n g t h i s p r o c e e d i n g s . F i n a l l y , a s p e c i a l a n d p e r s o n a l e x p r e s -s i o n o f g r a t i t u d e i -s e x t e n d e d t o D r . R o b e r t E . W h i t e h e a d , D r . A l b e r t D. Wood, a n d D r . A r t h u r M. D i n e s s , o f t h e O f f i c e o f N a v a l R e s e a r c h , a n d Mr. R a l p h D. C o o p e r , o f t h e N a t i o n a l R e -s e a r c h C o u n c i l , f o r t h e i r i n v a l u a b l e c o u n -s e l a n d e n c o u r a g e m e n t t h r o u g h o u t t h e e n t i r e p e r i o d o f t h e s y m p o s i u m . C h o u n g M. L e e F l u i d M e c h a n i c s P r o g r a m O f f i c e o f N a v a l R e s e a r c h
CONTENTS
Page OPENING CEREMONY
0 . Krappinger, Hamburgische S c h i f f b a u - V e r s u c h s a n s t a l t 3
A. Pawelczyk, Second Mayor of Hamburg 3 H.M. P f a r r , V i c e - P r e s i d e n t o f the U n i v e r s i t y of Hamburg 4
F. Press, National Academy o f Sciences c
7TH GEORG-WEINBLUM-MEMORIAL-LECTURE
SURFACE WAVES FROM THE RAY POINT OF VIEW 9 M.P. T u l i n , U n i v e r s i t y o f C a l i f o r n i a , Santa Barbara, USA
SESSION I SEAKEEPING PROBLEMS
NONLINEAR FORCED MOTIONS OF FLOATING BODIES 3 3 ' ' ' " ' D I S C U S S I O N ^ ' Massachusetts I n s t i t u t e of Technology, Cambridge, USA
R.W. Yeung, U n i v e r s i t y of C a l i f o r n i a , B e r k e l e y , USA 48
E.O. Tuck, U n i v e r s i t y of A d e l a i d e , A u s t r a l i a 48 A.T. Chwang, U n i v e r s i t y of Iowa, USA
AUTHORS' REPLY 4 3 SHIP MOTIONS IN SHALLOW WATER BY UNIFIED THEORY
R. B0rresen and O.M. F a l t i n s e n , Norwegian I n s t i t u t e o f Technology. Trondheim, Norway S " '
SESSION I I SEAKEEPING PROBLEMS
UNSTEADY WAKE VELOCITIES DUE TO WAVES AND MOTIONS MEASURED ON A SHIP MODEL IN HEAD WAVES 69 A.B. Aalbers and W. van Gent, Maritime Research I n s t i t u t e Netherlands (MARIN).
Wageningen, The Netherlands
RUDDER™ÏERAcflONS^^° ^"^^'^^ "^^^ MANEUVERS USING AN IMPROVED MODEL OF HULL-PROPELLER- 83 P. Oltmann, Hamburgische S c h i f f b a u - V e r s u c h s a n s t a l t , Hamburg, Germany
S.D. Sharma, I n s t i t u t f u r S c h i f f b a u , Hamburg, Germany
DISCUSSION ' J . Matusiak, Technical Research Center of F i n l a n d , Espoo, Finland
V. Ankudinov, Tracor Hydronautics I n c . , L a u r e l , USA AUTHORS' REPLY
106 106 108
ON THE SHIP MOTION REDUCTION BY ANTI-PITCHING FINS IN HEAD SEAS 109 M. Bessho and Y. Kyozuka, National Defense Academy, Yokosuka, Japan
DISCUSSION
H. I s s h i k i , Technical Research I n s t i t u t e H i t a c h i Zosen C o r p . , Osaka, Japan 117
R. McGregor, U n i v e r s i t y of Glasgow, United Kingdom I I 7 J . - Y . Wu, U n i v e r s i t y of Glasgow, United Kingdom ^^a AUTHORS' REPLY
MULTIPLE SCATTERING OF SURFACE WATER WAVES AND THE NULL-FIELD METHOD 119 P.A. M a r t i n , U n i v e r s i t y of Manchester, United Kingdom
SESSION I I I SEAKEEPING PROBLEMS
ADDED RESISTANCE IN WAVES OF HULL FORMS WITH BLUNT BOW I 3 5 M. Ohkusu, Kyushu U n i v e r s i t y , Kasuga, Japan
DISCUSSION
NONLINEAR DEVELOPMENT OF HEAD SEAS ALONG A LARGE SLENDER BODY
C C . Mei and E. L o , Massachusetts I n s t i t u t e o f Technology, Cambridge, USA
THE EFFECT OF BOW FLARE AND NONLINEARITIES ON THE PREDICTION OF LARGE AMPLITUDE MOTIONS 153 A N D ^ E C ™ E S S ^ O . A . Walden. David W. Taylor Naval Ship Research and Development Center,
Bethesda, USA
DISCUSSION 174 T. Fukasawa, U n i v e r s i t y of Tokyo, Japan j , .
W.C. Webster, U n i v e r s i t y o f C a l i f o r n i a , Berkeley, USA T . Loukakis, National Technical U n i v e r s i t y , Athens, Greece
S B i n d e l , Ecole Nationale Superieure de Techmques Avancees, P a n s , France i / s R. McGregor, U n i v e r s i t y o f Glasgow, United Kingdom
AUTHORS' REPLY
THE UNIFIED SLENDER-BODY THEORY: SHIP MOTIONS I N WAVES
P.D. Sclavounos, Massachusetts I n s t i t u t e o f Technology, Cambridge, USA
DISCUSSION , r M 193 J . S . Pawlowski, National Research C o u n c i l , Ottawa, Canada
AUTHOR'S REPLY
A NEW DEVELOPMENT IN THE THEORY OF OSCILLATING AND TRANSLATING SLENDER SHIPS R.W. Yeung and S.H. Kim, U n i v e r s i t y of C a l i f o r n i a , Berkeley, USA
DISCUSSION „ , o 213 P.D. K a k l i s , National Technical U n i v e r s i t y , Athens, Greece ^ i g J . S . Pawlowski, National Research C o u n c i l , Ottawa, Canada
AUTHORS' REPLY
SESSION IV
PRQPELLER-HULL INTERACTIONS
221
239 LOCAL PROPELLER BLADE FLOWS IN UNIFORM AND SHEARED O^SET FLOWS USING LDV TECHNIQUES
S.D. Jessup, C. S c h o t t , M. J e f f e r s and S. Kobayashi, David W. Taylor Naval i m p Research and Development Center, Bethesda, USA
"^TsiaSrock,
Hamburgische S c h i f f b a u - V e r s u c h s a n s t a l t . [ j ^ - l - b " * ; ? . . G e « 236 W E Ball Admiralty Research Establishment, Haslar, Umted KingdomM.s: Chang and N.C. Groves, David W. Taylor Naval Ship Research and Development 236
Center, Bethesda, USA 236 AUTHORS' REPLY
CORRELATION OF WAKE MEASUREMENTS AT MODEL AND FULL SCALE SHIP J Kux, I n s t i t u t f ü r S c h i f f b a u , Hamburg, Germany
J ! Laudan, Hamburgische S c h i f f b a u - V e r s u c h s a n s t a l t , Hamburg, Germany
" ' E ' I S and T. Nagamatsu. M i t s u b i s h i Heavy I n d u s t r i e s L t d . . Nagasaki. Japan 258 K - H . M o r i , Hiroshima U n i v e r s i t y . Higashi-Hiroshima, Japan RothpcHa USA 259
D Fry David W. Taylor Naval Ship Research and Development Center Bethesda, USA ^by ! > Huang! David W Taylor Naval Ship Research and Development Center,
C - ï " J e i - t e n 5 o r f . Hamburgische S c h i f f b a u - V e r s u c h s a n s t a l t , Hamburg, Germany 259 THEOREHCrPREDICnON OF UNSTEADY PROPELLER CHARACTERISTICS IN THE NON-UNIFORM WAKE FIELD
H laruo, M I k e h a t a , Yokohama National U n i v e r s i t y , Yokohama. Japan M. Ando. H i t a c h i S h i p b u i l d i n g Comp. L t d . , Osaka, Japan
" ^ ^ " c ^ S e s l i n , Stevens I n s t i t u t e o f Technology. Hoboken, USA 276 s! jessup, David W. Taylor Naval Ship Research and Development Center,
rSanefkS,
B e r l i n Ship Model Basin (VWS), B e r l i n , GermanyCALCUL^norOFTnE'TURBULENT FLOW AROUND THE STERN AND IN THE WAKE OF A BODY OF REVOLUTION 279
I f S u ' r J ^ - L ° ' S : ° 2 h i n a Ship S c i e n t i f i c Research Centre. Wuxi, PR China
''Ts'cL,
and T.T. Huang. David W. Taylor Naval Ship Research and Development 288 £ ^ T h m i e c J e n ! l è r ï i ; Ship Model Basin (VWS). B e r l i n . GermanyL . L a r s s o n , SSPA, M a r i t i m e C o n s u l t i n g A B , G o t h e n b u r g , Sweden 289 AUTHORS^^REPLr^'
^^"^^^^
C o n s u l t i n g AB, G o t h e n b u r g , Sweden 289SESSION V
NONLINEAR FREE-SURFACE INTERACTIONS
SPLASHLESS BOW FLOWS IN TWO DIMENSIONS' P o , E.O. T u c k , U n i v e r s i t y o f A d e l a i d e , A u s t r a l i a J . M . V a n d e n - B r o e c k , U n i v e r s i t y o f W i s c o n s i n , M a d i s o n , USA DISCUSSION C . - S . Y i h , U n i v e r s i t y o f M i c h i g a n , Ann A r b o r , USA 300 R . F . H a l l i d a y , U n i v e r s i t y o f S y d n e y , S y d n e y , A u s t r a l i a -^nn S . D . S h a r m a . I n s t i t u t f i i r ^ r h i f f h ^ , , u,mk,,w,^ .'r'r AUTHORS' REPLY 301
NECKLACE VORTEX AND BOW WAVE AROUND BLUNT BODIES -^no
^''ni<ir°>?'i U n i v e r s i t y , H i g a s h i - H i r o s h i m a , Japan M. A b e , i ^ H t s u i E n g . & S h i p b u i l d i n g C o m p . , A k i s h i m a L a b . , T o k y o , Japan 315 fl" v' tl' Ï N a t i o n a l e S u p e r i e u r e de T e c h n i q u e s A v a n c e e s , P a r i s . F r a n c e 315 A. K r a c h t , B e r l i n S h i p Model B a s i n (VWS), B e r l i n , Germany 3 1 5 V.C P a t e l , Iowa I n s t i t u t e o f H y d r a u l i c R e s e a r c h , I o w a , USA 3 1 ^ E. B a b a , M H I Nagasal<i T e c h n i c a l I n s t i t u t e , N a g a s a k i , Japan 3 1 5 H. M i y a t a , U n i v e r s i t y o f T o k y o , T o k y o , J a p a n AUTHORS' REPLY ^ J , y 315 316 BOW FLOW FIELD OF SURFACE SHIPS
B e t h e s d l ' S s A ^ ' ^ " ^ " ^ ' ' ' ^ ^^'^ R e s e a r c h and D e v e l o p m e n t C e n t e r , DISCUSSION A . J . M u s k e r , A d m i r a l t y R e s e a r c h E s t a b l i s h m e n t . H a s l a r , U n i t e d Kingdom 3 4 5 AUTHÓRS' S L ? ' " ^ " " ' " ' " 9 ' Germany 3 4 5 346 SHIP-GENERATED SOLITONS ^•^DISCUSSIOI^ ' " ' ^ ^ ' ^ ^ U n i v e r s i t y o f C a l i f o r n i a , B e r k e l e y , USA
fi'i^'n,^'!!'' ^flS''-'^?] f^^search I n s t i t u t e . H i t a c h i Zosen C o r p . , O s a k a , Japan 361 A . J . l u s k e r , A d m i r a l t y R e s e a r c h E s t a b l i s h m e n t , H a s l a r , U n i t e d Kingdom ^ 361 AUTHORS' REPLY ' ^ " ^ ^ ' ^ ^ ^ ^ ^ ' ^ I n s t i t u t e o f T e c h n o l o g y . P a s a d e n a . USA 361
353
SESSION V I
NONLINEAR FREE-SURFACE INTERACTIONS EDGE WAVES CREATED BY A LONGSHORE CURRENT AND A RIDGE IN THE SEA-BED
C S . Y i h . U n i v e r s i t y o f M i c h i g a n , Ann A r b o r , USA
A STUDY OF NONLINEAR WAVE RESISTANCE BY A ZAKHAROV-TYPE INTEGRAL EQUATION 37T S?SCUSSÏSN
^^^'"^''^
U n i v e r s i t y , R a m a t - A v i v , I s r a e lG. J e n s e n , I n s t i t u t f ü r S c h i f f b a u , Hamburg, Germany
A U T T O R S ' ^ R E P L Y ^ " ' * ' ' ' " * S c h i f f b a u , Hamburg. Germany 3 3 5 385
EFFECT OF BOW SHAPE ON FREE-SURFACE SHEAR FLOW
K. Takekuma, MHI N a g a s a k i E x p e r i m e n t a l T a n k , N a g a s a k i , Japan DISCUSSION^^^'^"* S c h i f f b a u . Hamburg, Germany
H. M i y a t a , U n i v e r s i t y o f T o k y o , T o k y o , J a p a n 401 K . - H . M o r i . H i r o s h i m a U n i v e r s i t y . H i g a s h i - H i r o s h i m a . Japan
A. K r a c h t . B e r l i n S h i p Model B a s i n (VWS), B e r l i n , Germany
C.P. Thomsen, F a c h h o c h s c h u l e Hamburg, Hamburg, Germany Am V.C P a t e l , U n i v e r s i t y o f I o w a , Iowa C i t y , USA 4 0 4 S . O g i w a r a and A . Masuko, I s h i k a w a j i m a - H a r i m a Heavy I n d u s t r i e s Co. L t d . , 404
AUTHORS' REPLY 367 385 402 403 405
407
WAVE-TRAPPING DUE TO A POROUS PLATE ^,5. A.T. Chwang, I n s t i t u t e of Hydraul i c Research, Umversi t y of Iowa, Iowa C i t y , UbA
Z. Dong, Tsinghua U n i v e r s i t y , B e i j ' i n g , PR China
" ' T Ï S i k i , Technical Research I n s t i t u t e , H i t a c h i Zosen C o r p . , Osaka, Japan « 7 AUTHORS' REPLY
ON THE INFLUENCE OF NONLINEARITY OF BOUNDARY CONDITIONS AT THE HULL AND WATER SURFACE 419
Ï
^ L T Ï Ï n ^ ^ N
^ ^ l v i r i
. r S ^ a n d
Y.S. Tinioshin. K r i l c v S h i p b u i l d i n g Research I n s t i t u t e , Leningrad, USSR°^^C^Baba, M i t s u b i s h i Heavy I n d u s t r i e s L t d . , Nagasaki, Japan J25 R F H a l l i d a y , U n i v e r s i t y of Sydney, Sydney, A u s t r a l i a
A . J . Musker, Admiralty Research Establishment, Haslar, United Kingdom 4Zb SESSION V I I
PROPELLER-HULL INTERACTIONS
A DIFFERENTIAL PREDICTION METHOD FOR THREE-DIMENSIONAL LAMINAR AND TURBULENT BOUNDARY 429
''7l%rZfZ T^'^''^<^
W. Taylor Naval Ship Research and Development Center. Bethesda, USAOISCUSSION^^^_^^ Stevens I n s t i t u t e o f Technology. Hoboken. USA AUTHORS' REPLY
A PERFORMANCE PREDICTION THEORY FOR PARTIALLY SUBMERGED VENTILATED PROPELLERS 0 . Furuya, Tetra Techn. I n c . , Pasadena, USA
^ ^ ^ S ' ^ C ^ L g a n , David W. Taylor Naval Ship Research and Development Center, 461 E T w e t t e ï ï r f , Hamburgische S c h i f f b a u - V e r s u c h s a n s t a l t , Hamburg, Germany 461 AUTHOR'S REPLY
FREE-SURFACE EFFECT ON THE HULL-PROPELLER INTERACTIONS
R. Yamazaki and K. Nakatake. Kyushu U n i v e r s i t y , Fukuoka, Japan
" ^ ' S ' l l a L c k . Hamburgische S c h i f f b a u - V e r s u c h s a n s t a l t . Hamburg. Germany 477 H Nowacki, Technical U n i v e r s i t y of B e r l i n , B e r l i n , Germany
S.D. Sharma, I n s t i t u t f u r S c h i f f b a u . Hamburg, Germany E. Baba, M i t s u b i s h i Heavy I n d u s t r i e s L t d . . Nagasaki.Japan M. Schmiechen. B e r l i n Model Basin (VWS), B e r l i n , Gennany AUTHORS' REPLY
ON WAKE AND THRUST DEDUCTION FROM PROPULSION TESTS ALONE - A RATIONAL THEORY OF SHIP 481
HULL-PROPELLER INTERACTION
H. Schmiechen, B e r l i n Model Basin (VWS), B e r l i n . Germany
° ' ? - r ? h o u , China Ship S c i e n t i f i c Research Center. Wuxi PR China 49 G: Dyne. SSPA Maritime Consulting AB. Gothenburg, Sweden
M Abe, M i t s u i Eng. & S h i p b u i l d i n g Comp. Akishima L a b . , Tokyo, Japan
K. Nakatake, Kyushu U n i v e r s i t y , Fukuoka, Japan 5Q AUTHOR'S REPLY
SESSION V I I I FRONTIER PROBLEMS
CALCULATION OF STER» FLOWS B , A T I M E . M A R C ^ ^ N T S ; ; ^ ^ "
H C. Chen and V.C. P a t e l , U n i v e r s i t y of Iowa, Iowa C i t y , UbA
' " ' S " - ? ' ° f e e and T . T . Huang, David W. Taylor Naval Ship Research and Development 5;
Center, Bethesda, USA A,-u„„e m^^rp 5; T Loukakis, National Technical U n i v e r s i t y , Athens, Greece
K.-A M o r i . Hiroshima U n i v e r s i t y , Higashi-Hiroshima. Japan g, AUTHORS' REPLY
A CALCULATION METHOD FOR SHIP STERN FLOWS USING AN ANALYTICAL BODY-FITTED COORDINATE SYSTEM 525 L. Broberg, Chalmers U n i v e r s i t y of Technology, Gothenburg, Sweden
L. Larsson, SSPA and Chalmers U n i v e r s i t y of Technoloqy, Gothenburg, Sweden DISCUSSION
M.S. Chang, David W. Taylor Naval Ship Research and Development Center, 538 Bethesda, USA
AUTHORS' REPLY 538 UTILIZATION OF WAVE ENERGY FOR PROPULSION OF SHIPS - WAVE DEVOURING PROPULSION 539
H. I s s h i k i and M. Murakami, Technical Research I n s t i t u t e , H i t a c h i Zosen C o r p . , Osaka, Japan
Y. Terao, Tokai U n i v e r s i t y , Shizuoka, Japan
RESISTANCE INCREASE DUE TO SURFACE ROUGHNESS , 553 M. Nakato, Hiroshima U n i v e r s i t y , S a i j o H i g a s h i , Hiroshima, Japan
H. Onogi, Tsu Res. Lab. of Nippon Kokkan KK. Tsu C i t y , Japan Y. Himeno, U n i v e r s i t y of Osaka P r e f e c t u r e , Osaka, Japan I . Tanaka and T. Suzuki, Osaka U n i v e r s i t y , Osaka, Japan
DISCUSSION
P.S. G r a n v i l l e , David W. Taylor Naval Ship Research and Development Center, 567 Bethesda, USA
A. J . Musker, A d m i r a l i t y Research Establishment, H a s l a r , United Kingdom 568
AUTHORS' REPLY 568 NUMERICAL SIMULATION OF FLOW AROUND BLUFF BODIES AT HIGH REYNOLDS NUMBERS 569
J.J.W. van der Vegt and R.H.M. Huijsmans, Maritime Research I n s t i t u t e Netherlands (MARIN), Wageningen, The Netherlands
DISCUSSION
B. P e t t e r s e n , Norwegian I n s t i t u t e of Technology, Trondheim, Norway 585 A.J. Hermans, Technische Hogeschool D e l f t , D e l f t , The Netherlands 585
AUTHORS' REPLY 535
