tobsam

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MaplePrimes Activity


These are replies submitted by tobsam

@Carl Love 

Thank You sooo much

God bless u

 

You have answered most of my questions(post) here. I will realy love to learn from you in the future. Probably, my "masters" under you or "Phd". You re a my Maple Mentor Genius.

 

You the best.

@Carl Love 

Thankzz alot... I finally got it...

restart``

U := u(y, t):

pde1 := diff(u(y, t), y, y) = Typesetting:-delayDotProduct(S, diff(u(y, t), y))+diff(u(y, t), t)+Typesetting:-delayDotProduct(M, u(y, t))+u(y, t)/K-theta(y, t);

diff(diff(u(y, t), y), y) = S.(diff(u(y, t), y))+diff(u(y, t), t)+M.u(y, t)+u(y, t)/K-theta(y, t)

(1)

pde2 := diff(z(y, t), y) = Typesetting:-delayDotProduct(Pr, diff(theta(y, t), t)+Typesetting:-delayDotProduct(S, z(y, t)));

diff(z(y, t), y) = Pr.(diff(theta(y, t), t)+S.z(y, t))

(2)

pde3 := z(y, t) = diff(theta(y, t), y);

z(y, t) = diff(theta(y, t), y)

(3)

IBC := {u(0, t) = 0, u(1, t) = 0, u(y, 0) = 0, theta(0, t) = t0, theta(1, t) = 0, theta(y, 0) = 0}

{u(0, t) = 0, u(1, t) = 0, u(y, 0) = 0, theta(0, t) = t0, theta(1, t) = 0, theta(y, 0) = 0}

(4)

Pr := .71:

Sol := pdsolve({pde1, pde2, pde3}, IBC, numeric);

module () local INFO; export plot, plot3d, animate, value, settings; option `Copyright (c) 2001 by Waterloo Maple Inc. All rights reserved.`; end module

(5)

`dθdy` := Sol:-value(z(y, t)):

`dθdy`(1, 3)

[y = 1., t = 3., z(y, t) = -.245607664314347718]

(6)

``

I also uploaded the wrong worksheet...

Carllove...  U d best

Download theta_prime_value.mwtheta_prime_value.mwwrong_theta_prime.mw

Thankzz alot...

I tried using the same algorithm(equations, boundary conditions and parameters) in solving for

, but itzz not working.

Plzzz help me...

Thanks alot.... Your post have been very helpful....

How can I get concrete real values for the variables, u(y,t) and theta(y,t) in a tabulated format(as in the below).... using maple

 

Pr       Sc       M      N      t      u(y,t)    theta(y,t)
7.0    0.78    1.0    0.2   0.2 
7.0    0.78    2.0    0.2   0.2 
7.0    0.78    3.0    0.2   0.2
7.0    0.78    1.0    0.4   0.2
7.0    0.78    1.0   -0.2   0.2
7.0    0.78    1.0   -0.4   0.2
7.0    0.78    1.0    0.2   0.4 
7.0    0.78    1.0    0.2   0.6 
0.71  0.78    1.0    0.2   0.2
10     0.78    1.0    0.2   0.2
7.0    0.22    1.0    0.2   0.2 
7.0    2.01    1.0    0.2   0.2 

 

 

Thanks alot.... Your post have been very helpful....

How can I get concrete real values for the variables, u(y,t) and theta(y,t) in a tabulated format(as in the below).... using maple

 

Pr       Sc       M      N      t      u(y,t)    theta(y,t)
7.0    0.78    1.0    0.2   0.2 
7.0    0.78    2.0    0.2   0.2 
7.0    0.78    3.0    0.2   0.2
7.0    0.78    1.0    0.4   0.2
7.0    0.78    1.0   -0.2   0.2
7.0    0.78    1.0   -0.4   0.2
7.0    0.78    1.0    0.2   0.4 
7.0    0.78    1.0    0.2   0.6 
0.71  0.78    1.0    0.2   0.2
10     0.78    1.0    0.2   0.2
7.0    0.22    1.0    0.2   0.2 
7.0    2.01    1.0    0.2   0.2 

 

 

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