idrodinamica costiera in presenza di strutture dissipative
Transcript
idrodinamica costiera in presenza di strutture dissipative
! " " # # $ % & !' "' !' "' ) ' ' *++,-*++. (( & ! " # $ % & ' (() * ! * +, % 0 122 * - . / %*./ 3 4 5 * * %*./ ' 1222 6 72 1 8 1 72 19 H (m) 8 0.1 0 −0.2 −0.1 d (m) 7: 9 no kelp−experimental data kelp−experimental data no kelp−numerical results kelp−numerical results −0.4 −0.2 submerged vegetation −0.6 −0.3 −0.8 −0.4 0 5 ! % 10 crosshore distance (m) " #$$$% 15 " % 20 " $ 3 : 3 7 ;1) 72 2<9 3 2 ;1 $ 3 2: = # 2 2: = / 8 8 0.3 m/s 7 7 longshore direction (m) longshore direction (m) 0.03 m/s 8 6 5 4 3 6 5 4 3 2 0 0.5 1 1.5 2 2.5 onshore direction (m) 3 2 0 3.5 0.5 1 1.5 2 2.5 onshore direction (m) & < 3 72 2( 6 : 8 −3 9 x 10 submerged breakwaters 8 longshore setup gradient 7 η (m) 6 5 4 3 almost constant setup deeply submerged high−friction steps 2 1 gap 0 ' 3.5 % % 8 3 4 4.5 5 5.5 longshore distance (m) 6 () $$ ($ * > " 3 6 +!72 9? !7 9 H (m) 0.06 bathymetry b=0.4m b=0.8m b=1.6m H−e (no reef) H−f (no reef) H−e (b/L=0.5) H−e (b/L=1) H−f (b/L=0.5) H−f (b/L=1) 0.05 0.04 0.03 0.02 d (m) 0.01 −0.2 , 8 X (m) 0 p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