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11Â¥2015-03-18 10:32:46
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anxiaoxin2

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ÒýÓûØÌû:
11Â¥: Originally posted by ÔÂÖ»À¶ at 2015-03-18 10:32:46
±ÈÈçt=0ʱ£¬³õֵΪ1 2£»ÄÇô  y0=;...

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12Â¥2015-03-18 11:27:52
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13Â¥2015-03-18 12:23:57
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anxiaoxin2

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
4Â¥: Originally posted by ÔÂÖ»À¶ at 2015-03-05 21:00:42
function solve_odes
clear all;clc
y0=;    %  ÔÚt=0ʱ¿ÌµÄÊýÖµ£¬¼´Æä³õÖµ£¬´ýÌîÈë
tspan=; %ʱ¼ätµÄ·¶Î§£¬´ýÌîÈë
=ode45(@my_odes],)
figure(1),plot(t,y(:,1));     % ¶Ôʱ¼ät×÷ͼ
figure(2),plot(t,y(:, ...

ÄãºÃ£¬ÎÒÔÚÒÔϱí´ïʽÖÐ[%S],[%Mg]¸ÃÈçºÎ±íʾ£¿Ö±½Óдy1,y2Âð£¿dydt(1)=        ;  % d[%s]/dtµÄ±í´ïʽ
dydt(2)=        ;  % d[%Mg]/dtµÄ±í´ïʽ
14Â¥2015-03-18 14:09:03
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14Â¥: Originally posted by anxiaoxin2 at 2015-03-18 14:09:03
ÄãºÃ£¬ÎÒÔÚÒÔϱí´ïʽÖÐ,¸ÃÈçºÎ±íʾ£¿Ö±½Óдy1,y2Âð£¿dydt(1)=        ;  % d/dtµÄ±í´ïʽ
dydt(2)=        ;  % d/dtµÄ±í´ïʽ...

[%S],[%Mg]¿ÉÖ±½Óд³Éy1 y2
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function dydt=my_odes(t,y)
y1=y(1);
y2=y(2);
dydt(1)=        ;  % d[%s]/dtµÄ±í´ïʽ
dydt(2)=        ;  % d[%Mg]/dtµÄ±í´ïʽ
.......

» ±¾ÌûÒÑ»ñµÃµÄºì»¨£¨×îÐÂ10¶ä£©

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15Â¥2015-03-18 14:35:28
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anxiaoxin2

½ð³æ (СÓÐÃûÆø)

Ëͺ컨һ¶ä
ÒýÓûØÌû:
15Â¥: Originally posted by ÔÂÖ»À¶ at 2015-03-18 14:35:28
,¿ÉÖ±½Óд³Éy1 y2
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function dydt=my_odes(t,y)
y1=y(1);
y2=y(2);
dydt(1)=        ;  % d/dtµÄ±í´ïʽ
dydt(2)=        ;  % d/dtµÄ±í´ïʽ
..........

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function solve_odes
clear all;clc
y0=[0.03,0.0001];    % [%S] [%Mg]ÔÚt=0ʱ¿ÌµÄÊýÖµ£¬¼´Æä³õÖµ£¬´ýÌîÈë
tspan=[0:1:1200]; %ʱ¼ätµÄ·¶Î§£¬´ýÌîÈë
[t,y]=ode45(¡®my_odes¡¯, tspan, y0);
figure(1),plot(t,y(:,1));     % [%s]¶Ôʱ¼ät×÷ͼ
figure(2),plot(t,y(:,2));      % [%Mg]¶Ôʱ¼ät×÷ͼ

function dydt=my_odes(t)
b= 0.36392;   %¦ÂÍÑÁò¼Á´©Í¸±È
Ip=0.233;  %ÍÑÁò¼ÁÅç·ÛËÙÂÊ
U1=0.4;  %CaOÔÚÍÑÁò¼ÁÖеÄÖÊÁ¿·ÖÊý
U3=0.6;  %MgÔÚÍÑÁò¼ÁÖеÄÖÊÁ¿·ÖÊý
ip=25.85;  %·Û¼ÁÔÚÌúË®ÖÐÍ£Áôʱ¼ä
irt=12.45;  %MgÆøÅÝÔÚÌúË®ÖеÄÍ£Áôʱ¼ä
Pm=7138;  %ÌúË®ÃܶÈ
Ps=1380;  %ÍÑÁò¼ÁÃܶȠ      
Pz=3500;  %¶¥ÔüÃܶÈ
Wm=210000;  %ÌúË®ÖØÁ¿
Wso=5000;  %³õʼÔüÁ¿
Ds=0.001;  %ÍÑÁò¼Á¾¶Á£
Db=9.75E-05;  %MgÆøÅÝÖ±¾¶
Km=1.42313E-05;  %ÌúË®ÖÐÁòµÄ´«ÖÊϵÊý
Kb=0.001031861;  %ÁòÔÚMgÆøÅÝÉϵĴ«ÖÊϵÊý
Ks=4.19217E-09;  %ÁòÔÚÔüÖеĴ«ÖÊϵÊý
k=5.20879E-05;  %±í¹Û·´Ó¦³£Êý
Tmix=240;  %»ìÔÈʱ¼ä
Q=0.02777778;  %Åç´µÆøÁ¿
A=8.24;  %Ôü½ð·´Ó¦Ãæ»ý
Ls=169.6743082;  %ÁòµÄ·ÖÅäϵÊý
B=0.9;  %MgÔÚÌúÒºÖеÄÈܽâ±ÈÀý
n=0.4;  %·Û¼Á½øÈëÔü²ãµÄÓÐЧϵÊý
SCaOe=5.71697E-05;  %CaOÍÑÁòƽºâʱÁòº¬Á¿
SMge=1.42026E-05;  %MgÍÑÁòƽºâʱÁòº¬Á¿
S4=0.5;  %³õʼÔüÖÐÁòº¬Á¿
y1=y(1);
y2=y(2);
S2=(S4*Wso+(S3-y1*exp(-Tmix/t))*Wm)/(Wso+Ip*t*n);

dydt(1)=(6*b*Ip*U1*ip*Pm*Km*(y1*exp(-Tmix/t)-SCaOe))/(Ds*Wm*Ps)+(6*Q*irt*Pm*Kb*(y1*exp(-Tmix/t)-SMge))/Wm/Db+0.4167*k*Pm*y1*exp(-Tmix/t)*y2*exp(-Tmix/t)+A*Pz*Ks*Ls*(y1*exp(-Tmix/t)-S2/Ls)/Wm;
dydt(2)=100*B*U3*Ip/Wm-0.75*(0.4167*k*Pm*y1*exp(-Tmix/t)*y2*exp(-Tmix/t));
лÁË¡£¡£¡£
16Â¥2015-03-18 15:26:43
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16Â¥: Originally posted by anxiaoxin2 at 2015-03-18 15:26:43
°æÖ÷£¬Õâ¸ö»¹ÊÇÔËÐв»Á˰¡¡£¡£¡£
ÕâÊÇ´úÂ룬Äã°ïÎÒ¿´¿´ßÂ
function solve_odes
clear all;clc
y0=;    %  ÔÚt=0ʱ¿ÌµÄÊýÖµ£¬¼´Æä³õÖµ£¬´ýÌîÈë
tspan=; %ʱ¼ätµÄ·¶Î§£¬´ýÌîÈë
=ode45(¡®my_odes¡¯, tspan, y0) ...

S3ûÓж¨Ò壬ÓÉÓÚ²»ÖªµÀS3µÄÊýÖµ£¬ÒÔÏ´úÂëÖÐS3=0.3£»³ÌÐòÒѾ­¿ÉÒÔÅÜͨ
CODE:
function solve_odes
clear all;clc
y0=[0.03,0.0001];    % [%S] [%Mg]ÔÚt=0ʱ¿ÌµÄÊýÖµ£¬¼´Æä³õÖµ£¬´ýÌîÈë
tspan=[0:1:100]; %ʱ¼ätµÄ·¶Î§£¬´ýÌîÈë
[t,y]=ode15s(@my_odes, tspan, y0);
figure(1),plot(t,y(:,1));     % [%s]¶Ôʱ¼ät×÷ͼ
figure(2),plot(t,y(:,2));      % [%Mg]¶Ôʱ¼ät×÷ͼ

function dydt=my_odes(t,y)
b= 0.36392;   %¦ÂÍÑÁò¼Á´©Í¸±È
Ip=0.233;  %ÍÑÁò¼ÁÅç·ÛËÙÂÊ
U1=0.4;  %CaOÔÚÍÑÁò¼ÁÖеÄÖÊÁ¿·ÖÊý
U3=0.6;  %MgÔÚÍÑÁò¼ÁÖеÄÖÊÁ¿·ÖÊý
ip=25.85;  %·Û¼ÁÔÚÌúË®ÖÐÍ£Áôʱ¼ä
irt=12.45;  %MgÆøÅÝÔÚÌúË®ÖеÄÍ£Áôʱ¼ä
Pm=7138;  %ÌúË®ÃܶÈ
Ps=1380;  %ÍÑÁò¼ÁÃܶȠ       
Pz=3500;  %¶¥ÔüÃܶÈ
Wm=210000;  %ÌúË®ÖØÁ¿
Wso=5000;  %³õʼÔüÁ¿
Ds=0.001;  %ÍÑÁò¼Á¾¶Á£
Db=9.75E-05;  %MgÆøÅÝÖ±¾¶
Km=1.42313E-05;  %ÌúË®ÖÐÁòµÄ´«ÖÊϵÊý
Kb=0.001031861;  %ÁòÔÚMgÆøÅÝÉϵĴ«ÖÊϵÊý
Ks=4.19217E-09;  %ÁòÔÚÔüÖеĴ«ÖÊϵÊý
k=5.20879E-05;  %±í¹Û·´Ó¦³£Êý
Tmix=240;  %»ìÔÈʱ¼ä
Q=0.02777778;  %Åç´µÆøÁ¿
A=8.24;  %Ôü½ð·´Ó¦Ãæ»ý
Ls=169.6743082;  %ÁòµÄ·ÖÅäϵÊý
B=0.9;  %MgÔÚÌúÒºÖеÄÈܽâ±ÈÀý
n=0.4;  %·Û¼Á½øÈëÔü²ãµÄÓÐЧϵÊý
SCaOe=5.71697E-05;  %CaOÍÑÁòƽºâʱÁòº¬Á¿
SMge=1.42026E-05;  %MgÍÑÁòƽºâʱÁòº¬Á¿
S4=0.5;  %³õʼÔüÖÐÁòº¬Á¿
y1=y(1);
y2=y(2);

S3=0.1;

S2=(S4*Wso+(S3-y1*exp(-Tmix/t))*Wm)/(Wso+Ip*t*n);



dydt(1)=(6*b*Ip*U1*ip*Pm*Km*(y1*exp(-Tmix/t)-SCaOe))/(Ds*Wm*Ps)+(6*Q*irt*Pm*Kb*(y1*exp(-Tmix/t)-SMge))/Wm/Db+0.4167*k*Pm*y1*exp(-Tmix/t)*y2*exp(-Tmix/t)+A*Pz*Ks*Ls*(y1*exp(-Tmix/t)-S2/Ls)/Wm;
dydt(2)=100*B*U3*Ip/Wm-0.75*(0.4167*k*Pm*y1*exp(-Tmix/t)*y2*exp(-Tmix/t));

dydt=dydt';

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17Â¥2015-03-18 16:29:34
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17Â¥: Originally posted by ÔÂÖ»À¶ at 2015-03-18 16:29:34
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function solve_odes
clear all;clc
y0=;    %  ÔÚt=0ʱ¿ÌµÄÊýÖµ£¬¼´Æä³õÖµ£¬´ýÌîÈë
tspan=; %ʱ¼ätµÄ·¶Î§£¬´ýÌîÈë
=ode15s(@my_odes ...

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18Â¥2015-03-18 16:30:04
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anxiaoxin2

½ð³æ (СÓÐÃûÆø)

Ëͺ컨һ¶ä
ÒýÓûØÌû:
17Â¥: Originally posted by ÔÂÖ»À¶ at 2015-03-18 16:29:34
S3ûÓж¨Ò壬ÓÉÓÚ²»ÖªµÀS3µÄÊýÖµ£¬ÒÔÏ´úÂëÖÐS3=0.3£»³ÌÐòÒѾ­¿ÉÒÔÅÜͨ

function solve_odes
clear all;clc
y0=;    %  ÔÚt=0ʱ¿ÌµÄÊýÖµ£¬¼´Æä³õÖµ£¬´ýÌîÈë
tspan=; %ʱ¼ätµÄ·¶Î§£¬´ýÌîÈë
=ode15s(@my_odes ...

°æÖ÷£¬ÔçÉϺð¡¡£¡£¡£ÒÔÉÏ´úÂëÊÇÔõôÔËÐеģ¿¾ßÌå²Ù×÷²½ÖèÄÜ˵ÏÂÂð£¿ÎÒÕ⻹ÊDz»»áÔËÐС£¡£¡£
19Â¥2015-03-19 08:09:30
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Ö÷¹ÜÇø³¤ (Ö°Òµ×÷¼Ò)

ÒýÓûØÌû:
19Â¥: Originally posted by anxiaoxin2 at 2015-03-19 08:09:30
°æÖ÷£¬ÔçÉϺð¡¡£¡£¡£ÒÔÉÏ´úÂëÊÇÔõôÔËÐеģ¿¾ßÌå²Ù×÷²½ÖèÄÜ˵ÏÂÂð£¿ÎÒÕ⻹ÊDz»»áÔËÐС£¡£¡£...

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MATLAB¡¢MSСÎÊÌâ¡¢ÆÕͨÎÊÌâÇë·¢ÌûÇóÖú£¡Ê±¼ä¾«Á¦ÓÐÏÞ£¬Ë¡²»½ÓÊÜÎÞ³¥Ë½ÐÅÇóÖú¡£
20Â¥2015-03-19 08:36:57
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