SSPA – ITTC Workshop on Ship Boundary Layers 1980, Proceedings, Editor Lars Larsson, Publication Nr.90 of the Swedish Maritime Research Centre (summary)

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P1981=1

MEDDELANDEN

F R A N

STATENS SKEPPSPROVNINGSANSTALT

( P U B L I C A T I O N S O F T H E SWEDISH M A R I T I M E RESEARCH CENTRE, SSPA)

Nr 90 GÖTEBORG 1981

SSPA - ITTC WORKSHOP ON

SHIP BOUNDARY LAYERS 1980

PROCEEDEVGS

Editor

Lars Larsson

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Distributed by: Liber Distribution S-162 89 VALLINGBY Sweden

ISBN 91-38-06443-X ISSN 0373-4714

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W o r k s h o p s c h e d u l e 5 1 . W o r k s h o p o r g a n i z a t i o n 7 2. C l a s s i f i c a t i o n o f m e t h o d s 8 2.1 C o o r d i n a t e s y s t e m 8 2.2 E m p i r i c a l i n p u t , d i f f e r e n t i a l m e t h o d s 14 2.3 E m p i r i c a l i n p u t , i n t e g r a l m e t h o d s 15 2.4 H i g h e r o r d e r e f f e c t s 18 2.5 D i m e n s i o n 19 2.6 Symmetry 20 2.7 N u m e r i c a l m e t h o d 2 1 2.8 D e t a i l s o f t h e c o m p u t a t i o n 23 3. Computed r e s u l t s 23 3.1 T e s t c a s e s 23 3.2 R e s u l t s , c a s e No 1 2 7 3.3 R e s u l t s , c a s e No 2 35 3.4 C o n c l u s i o n s 36 4. Summary o f t h e g e n e r a l d i s c u s s i o n 37 4.1 G e o m e t r y 37 4.2 R e l a t i v e i m p o r t a n c e o f t e r m s i n t h e g o v e r n i n g e q u a t i o n s 38 4 . 3 Symmetry 3 g 4.4 N u m e r i c a l m e t h o d s 40 4.5 H i g h e r o r d e r e f f e c t s 40 4.6 S i n g u l a r i t i e s a n d 3-D s e p a r a t i o n 4 1 5. A c k n o w l e d g e m e n t s 42 6. R e f e r e n c e s 4 2 F i g u r e s C1-C27 4 5 PART I I : PAPERS 85 1 . C a l c u l a t i o n o f b o u n d a r y l a y e r s o n s h i p s u s i n g s m a l l c r o s s - f l o w a s s u m p t i o n s . By P A K r o g s t a d 87

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2. S h i p b o u n d a r y l a y e r c a l c u l a t i o n s b y a h i g h e r o r d e r t h e o r y . By T Nagamatsu 9 7 3. C a l c u l a t i o n s w i t h t h e t h r e e d i m e n s i o n a l l a g -e n t r a i n m -e n t m -e t h o d . By P D S m i t h 117 4. C a l c u l a t i o n o f t h i c k t h r e e - d i m e n s i o n a l t u r b u l e n t b o u n d a r y l a y e r s o n s h i p s t e r n . By S S o e j i m a , R Y a m a z a k i a n d K N a k a t a k e 1 2 1 5. C a l c u l a t i o n o f SSPA 720 a n d HSVA t a n k e r . By K Muraoka

and Y S h i r o s e 139 6. Computed r e s u l t s f o r t w o s h i p h u l l s b y t h e C^K-method

By T C e b e c i , K C Chang, K Kaups and F B a r t e l s 149 7. C a l c u l a t i o n s u s i n g t h e m e t h o d b y Himeno and T a n a k a . By y Himeno a n d I T a n a k a 159 8. C a l c u l a t i o n s u s i n g Okuno's m e t h o d . By T Okuno 173 9. C a l c u l a t i o n s u s i n g t h e m e t h o d b y T a n a k a and Himeno. By I Tanaka a n d Y Himeno 179 10. C a l c u l a t i o n s u s i n g t h e m e t h o d by McLean a n d R a n d a l l . By J D McLean a n d J L R a n d a l l 183 1 1 . B o u n d a r y l a y e r c a l c u l a t i o n s b y i n t e g r a l m e t h o d . By S H a t a n o a n d K M o r i 2 0 1 12. S m a l l c r o s s - f l o w a n d f u l l y t h r e e - d i m e n s i o n a l b o u n d a r y l a y e r c a l c u l a t i o n s f o r t w o s h i p m o d e l s . By L L a r s s o n 207 13. C a l c u l a t i o n u s i n g t h e m e t h o d b y H o e k s t r a a n d Raven. By M H o e k s t r a a n d H C Raven 219 14. An i m p l i c i t momentum i n t e g r a l m e t h o d f o r t u r b u l e n t b o u n d a r y l a y e r s o n s h i p s . By T J L a n g a n 233 1 5 . S h i p b o u n d a r y l a y e r c a l c u l a t i o n s u s i n g an A l t e r n a t i n g -D i r e c t i o n - I m p l i c i t m e t h o d . By L-E J o h a n s s o n 2 5 1 PARTICIPANTS 2 6 1

No p a p e r was p r e s e n t e d b y V o l l h e i m & Hauke o r f r o m t h e K r y l o v I n s t i t u t e .