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M12 150FUNDAMENTOS DE DINAMICA DE FLUIDOS – RESISTENCIA Y ARRASTRE

8 FUERZAS  SOBRE CUERPOS SUMERGIDOS EN UNA CORRIENTE.

8.1 Descr!c"# $e#er%&.

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+e &% c(rre#-e es #*&(.C*%#+( &% !res"# +s'#*e c(rre#-e %,%( c('( e# e& c%s( % 3s-( +e &% es4er% F$. 6.2.27 +es+e e& !*#-( +ees%-%$#%c"# %s-% e& 39r-ce +e :0; &% c%!% &/'-e -e#+e % '%#-e#er *# es!es(r c(#s-%#-e '* ,%( +e& (r+e# +e&% +9c'% +e '&/'e-r( !%r% %re7 c(rres!(#+e % &% <(#% +e !res"# e# +s'#*c"# $r%+e#-e +e !res"#4%3(r%,&e7 3e&(c+%+es e# %*'e#-(.

Per( %#-e *# $r%+e#-e +e !res(#es %+3ers( es +ecr c*%#+( &% !res"# c('e#<% % %*'e#-%r #*e3%'e#-e +es!*9s+e& 39r-ce e& es!es(r +e &% c%!% &/'-e crece r=!+%'e#-e.

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L% Ress-e#c% +e F(r'% +e,e +s-#$*rse +e &% (-r% 4(r'% +e ress-e#c% +e,+% ec&*s3%'e#-e % &% 4rcc"#s*!er4c%& +%+% !(r &%s -e#s(#es -%#$e#c%&es !r(+*c+%s !(r &% 3sc(s+%+ +e#-r( +e &% c%!% &/'-e &&%'%+%

ress-e#c% +e 4rcc"# ( ress-e#c% !e&c*&%r -e#+re'(s e# $e#er%& Resistencia de arrastre = Resistencia de forma + Resistencia de fricción superficial .

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M12 151FUNDAMENTOS DE DINAMICA DE FLUIDOS – RESISTENCIA Y ARRASTRE

 N( (,s-%#-e &% 4(r'%c"# +e &% se!%r%c"# &% %!%rc"# +e &% c%&&e +e re'(&#(s c('( 3ere'(s '=s %+e&%#-e !*e+e e# e& c%s( +e '(3'e#-(s e#  Re %&-(s !r(+*cr 'e#(s %& %rr%s-re )*e e& %*'e#-( eces3( +e& es!es(r +e &%c%!% &/'-e -*r,*&e#-% -e#e e# es-(s c%s(s *# e4ec-( ,e#e4c(s(.

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8.2 Le +e R%&e$ +e &% ress-e#c% +e F(r'%

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M12 152FUNDAMENTOS DE DINAMICA DE FLUIDOS – RESISTENCIA Y ARRASTRE

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2

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M12 15FUNDAMENTOS DE DINAMICA DE FLUIDOS – RESISTENCIA Y ARRASTRE

T(+% +s'#*c"# +e &% 3e&(c+%+ +e &% !%r-/c*&% s(,re &% &/#e% +e c(rre#-e 3% %c('!%%+% +e *# %*'e#-( e# &% !res"# 3ce3ers% c('( se (,ser3% e# &% F$. 8..1.

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M12 15HFUNDAMENTOS DE DINAMICA DE FLUIDOS – RESISTENCIA Y ARRASTRE

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M12 155FUNDAMENTOS DE DINAMICA DE FLUIDOS – RESISTENCIA Y ARRASTRE

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M12 156FUNDAMENTOS DE DINAMICA DE FLUIDOS – RESISTENCIA Y ARRASTRE

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FRAN M. ITE Mec=#c% +e F&*+(s E+. Mc Gr%V &&

ILLIAM F. UGES D#='c% +e &(s 4&*+(s E+ Mc Gr%V &&

ROBERT FOW – ALAN MAC DONALD I#-r(+*cc"# % &% Mec=#c% +e F&*+(s H-% E+c"# Mc Gr%V &&

IRIN SAMES Mec=#c% +e F&*+(s K-% E+. E+-(r%& Mc Gr%V &&

RONALD GILES Mec=#c% +e &(s 4&*+(s e +r=*&c% E+. Mc Gr%V &&

STREETER Y EELER Mec=#c% +e &(s 4&*+(s E+. Mc Gr%V &&