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kh2n

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17 years, 37 days
Glasgow, United Kingdom
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These are replies submitted by kh2n

Re:...

kh2n 220
February 13 2011
0 0

your comand works but I want the output to an easy usable form. This commond just gives a list of data but then i have to copy it and remove all the brakets, thats a very long process to do. 

Re:...

kh2n 220
February 13 2011

your comand works but I want the output to an easy usable form. This commond just gives a list of data but then i have to copy it and remove all the brakets, thats a very long process to do. 

Re:...

kh2n 220
November 04 2010
0 0

Well I have every information about the involved parameters. You can see in the assumption that R>0, H>0, C>0 , k>0, 1<S<0. So what you want to know more.

 

Re:...

kh2n 220
November 04 2010

Well I have every information about the involved parameters. You can see in the assumption that R>0, H>0, C>0 , k>0, 1<S<0. So what you want to know more.

 

Re:...

kh2n 220
November 01 2010
0 0

@hirnyk 

I am unable to open this maple file. Please paste the code or upload a classic maple work sheet.

Thanks

Re:...

kh2n 220
November 01 2010

@hirnyk 

I am unable to open this maple file. Please paste the code or upload a classic maple work sheet.

Thanks

Re: How to find the coefficent of c_0...

kh2n 220
October 30 2010
0 0

 

Please see the attached file.

 

Thanks

asympt1.mws

@Robert Israel 

Re: How to find the coefficent of c_0...

kh2n 220
October 30 2010

 

Please see the attached file.

 

Thanks

asympt1.mws

@Robert Israel 

Re:...

kh2n 220
October 28 2010
0 0

Thanks. But If we look to the plot we can see that in some cases we have more than one solution. I tried to use the suggested link but i only get data for one solution. I want to have the complete set of data for more than one solution.

Re:...

kh2n 220
October 28 2010

Thanks. But If we look to the plot we can see that in some cases we have more than one solution. I tried to use the suggested link but i only get data for one solution. I want to have the complete set of data for more than one solution.

RE:...

kh2n 220
October 28 2010
0 0

@Robert Israel 

Thanks for you kind help. In some cases I need to know the coff of (1/Pec_i)^0, i.e., c_0 but we can see that it start with c_1. i also want to know what is c_0.

RE:...

kh2n 220
October 28 2010

@Robert Israel 

Thanks for you kind help. In some cases I need to know the coff of (1/Pec_i)^0, i.e., c_0 but we can see that it start with c_1. i also want to know what is c_0.

Re:...

kh2n 220
October 26 2010
0 0



> 

restart:
> 

A:=Theta0/C=(exp(Pec_i*k*S/(C*(R*S+1-S)))-1)*(H+1/(1-exp(-Pec_i*(1-S)/(R*S+1-S)))):
    assume(C>0,H>0,R>0,k>0,Theta0>0):
    A1:= eval(lhs(A)-rhs(A),S=add(c[k]/Pec_i^j,j=1..6)+O(1/Pec_i^7)):
    A2:= asympt(A1, Pec_i, 7):
> 

A3:= convert(subs(Pec_i=1/t, A2), polynom):
    eqs:= {coeffs(A3,t)}:
    sol:= solve(eqs,{seq(c[k],k=1..6)}):
    factor(sol);

Error, invalid input: factor uses a 1st argument, xFP, which is missing

  
> 

 

> 

 

I tried to use the suggested commands but you can see that is a problem. Please help me out.

Thanks



Download asympt1.mws

Re:...

kh2n 220
October 26 2010



> 

restart:
> 

A:=Theta0/C=(exp(Pec_i*k*S/(C*(R*S+1-S)))-1)*(H+1/(1-exp(-Pec_i*(1-S)/(R*S+1-S)))):
    assume(C>0,H>0,R>0,k>0,Theta0>0):
    A1:= eval(lhs(A)-rhs(A),S=add(c[k]/Pec_i^j,j=1..6)+O(1/Pec_i^7)):
    A2:= asympt(A1, Pec_i, 7):
> 

A3:= convert(subs(Pec_i=1/t, A2), polynom):
    eqs:= {coeffs(A3,t)}:
    sol:= solve(eqs,{seq(c[k],k=1..6)}):
    factor(sol);

Error, invalid input: factor uses a 1st argument, xFP, which is missing

  
> 

 

> 

 

I tried to use the suggested commands but you can see that is a problem. Please help me out.

Thanks



Download asympt1.mws

RE: Thanks...

kh2n 220
October 10 2010
0 0

Heat_transfer_in_por.pdf

please see page 48 and 49 of the attached file. I really need this plot.

Thanks

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