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matlab怎么实现循环,matlab怎么实现直到型循环

發布時間：2025/4/16 循环神经网络 79 豆豆

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clc;

clear;

D=4;

D0 = 0.012;

qm = 0.06;

I = 380;

G = 810;

Tfi = 323;

Ta = 285;

V = 4.2;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

if D>70

D=70;

else

D=D;

end

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

M = 0.85;%透過率τ

N = 0.9; %吸收率α

L = 2.3*10^(-3); %厚度L

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

K = M*N/(1-(1-M)*0.16)+0.27*(1-(exp(1))^(-4*L))??; %2-8A

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

A = 5.67*10^(-8); %σ

B = 0.1; %ε_p吸熱板發射率

C = 0.9; %ε_c蓋板發射率

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%假設Tp

Tpp=70+273;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

hw=5.7+3.8*V; %

f=(1+0.0892*hw-0.1166*hw*B)*(1+0.07866); %

c=520*(1-0.000051*D^2); %用D表示傾斜角度β

Z = 0.43*(1-Tpp);? ? %e=0.43(1-100?T_p )%

Ut=(1/(c/Tpp*((Tpp-Ta)/(1+f))^Z)+1/hw)^(-1)+A*(Tpp+Ta)*(Tpp^2+Ta^2)/((B+0.00591*hw)^(-1)+(1+f+0.133*B)/C-1);

%公式2-39? ?? ? A=5.67*10^(-8)? ???B=0.1? ?%吸熱版發射功率? ?? ?? ? C=? ? %蓋板發射率

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

E= 0.04? ?? ? ;% λ_(p-b)，λ_(p-e)隔熱層導熱系數

H= 25*10^(-3) ;%L_(p-b)底部厚度

J= 25*10^(-3) ;% L_(p-e) 側壁厚度

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Ub=1/(H/E+1/(5.7+3.8*V))??;

%2-43a

Ue=1/(J/E+1/(5.7+3.8*V))??;

%2-43b??E= 0.04??;%隔熱層導熱系數? ?? ???H= 25*10^(-3) ;%地步厚度? ?? ?J= 25*10^(-3) ;%側壁厚度

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Ae = 0.5;? ?? ?%側壁面積??A_e

At = 1.82;? ???%采光面積??A_t

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Ul=Ut+Ub+Ae/At*Ue??; %2-14A_t采光面積；A_e側面面積；V環境風速

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

tp=70;

ta=12;

Cp=4.185*10^3 ;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Ql = At*Ul*(tp-ta);? ?%2-3 Ql

Qu = At*G*K-At*Ul*(tp-ta);? ?%2-4??Qu

Tf = Qu/(2*Cp*qm)+Tfi ; %2-61c

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

W = 135*10^(-3);??%翅片寬度??W

Di = 10*10^(-3);? ?%內徑D_i

O=1000;%水的密度

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Ww =qm/((pi*Di^2/4)*O*floor(1/W))??; %2-51

tf=Tf-273;

hi =(1430+23.3*tf^2)*Ww^0.8*Di^(-0.2);? ?%2-50

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

W = 135*10^(-3);??%翅片寬度??W

I = 380? ?? ?? ?;? ?%導熱系數λ_p

J = 0.35*10^(-3) ;??%翅片厚度??δ

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

m=sqrt(Ul/(I*J))? ???;? ?? ?? ?? ? %2-49??I??J

F=tanh(m*(W-D0)/2)/(m*(W-D0)/2) ;??%2-48

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

a=2.5*10^(-3);%焊縫寬度

b=0.3*10^(-3);%焊縫高度

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Cb=I*a/b;

Ff = 1/Ul/(W*(1/(Ul*((W-D0)*F+D0)))+1/Cb+1/(hi*Di*pi)); %2-46

Fr = qm*Cp/(At*Ul)*(1-exp(-At*Ul*Ff/(qm*Cp)));??%2-54

Tp = Tfi+(Qu/(At*Fr*Ul))*(1-Fr) ;? ?%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%if abs(Tp-Tp')<10^(-5)I=Fr*(K-Ul*(Tfi-Ta)/G)??%η=F_R [(τα)_e-U_L??(T_fi-T_a)/G]elseTpp = Tp;%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

if??abs(Tp-Tpp)<10^(-5)

S = Fr*(K-Ul*(Tfi-Ta)/G) ;

else

while??abs(Tp-Tpp)>10^(-5)

hw = 5.7+3.8*V; %

f=(1+0.0892*hw-0.1166*hw*B)*(1+0.07866); %

c=520*(1-0.000051*D^2); %用D表示傾斜角度β

Z = 0.43*(1-Tp);? ? %e=0.43(1-100?T_p )%

Ut=(1/(c/Tp*((Tp-Ta)/(1+f))^Z)+1/hw)^(-1)+A*(Tp+Ta)*(Tp^2+Ta^2)/((B+0.00591*hw)^(-1)+(1+f+0.133*B)/C-1);

%公式2-39? ?? ? A=5.67*10^(-8)? ???B=0.1? ?%吸熱版發射功率? ?? ?? ? C=? ? %蓋板發射率

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

E= 0.04? ?? ? ;% λ_(p-b)，λ_(p-e)隔熱層導熱系數

H= 25*10^(-3) ;%L_(p-b)底部厚度

J= 25*10^(-3) ;% L_(p-e) 側壁厚度

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Ub=1/(H/E+1/(5.7+3.8*V))??;

%2-43a

Ue=1/(J/E+1/(5.7+3.8*V))??;

%2-43b??E= 0.04??;%隔熱層導熱系數? ?? ???H= 25*10^(-3) ;%地步厚度? ?? ?J= 25*10^(-3) ;%側壁厚度

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Ae = 0.5;? ?? ?%側壁面積??A_e

At = 1.82;? ???%采光面積??A_t

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Ul=Ut+Ub+Ae/At*Ue??; %2-14A_t采光面積；A_e側面面積；V環境風速

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

tp=70;

ta=12;

Cp=4.185*10^3 ;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Ql = At*Ul*(tp-ta);? ?%2-3 Ql

Qu = At*G*K-At*Ul*(tp-ta);? ?%2-4??Qu

Tf = Qu/(2*Cp*qm)+Tfi ; %2-61c

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

W = 135*10^(-3);??%翅片寬度??W

Di = 10*10^(-3);? ?%內徑D_i

O=1000;%水的密度

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Ww =qm/((pi*Di^2/4)*O*floor(1/W))??; %2-51

tf=Tf-273;

hi =(1430+23.3*tf^2)*Ww^0.8*Di^(-0.2);? ?%2-50

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

W = 135*10^(-3);??%翅片寬度??W

I = 380? ?? ?? ?;? ?%導熱系數λ_p

J = 0.35*10^(-3) ;??%翅片厚度??δ

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

m=sqrt(Ul/(I*J))? ???;? ?? ?? ?? ? %2-49??I??J

F=tanh(m*(W-D0)/2)/(m*(W-D0)/2) ;??%2-48

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

a=2.5*10^(-3);%焊縫寬度

b=0.3*10^(-3);%焊縫高度

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Cb=I*a/b;

Ff = 1/Ul/(W*(1/(Ul*((W-D0)*F+D0)))+1/Cb+1/(hi*Di*pi)); %2-46

Fr = qm*Cp/(At*Ul)*(1-exp(-At*Ul*Ff/(qm*Cp)));??%2-54

Tp = Tfi+(Qu/(At*Fr*Ul))*(1-Fr) ;? ?%

end

S = Fr*(K-Ul*(Tfi-Ta)/G)

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