Mr. skystar Pak

## 15 Reputation

8 years, 260 days

## How to convert PDE to ODE using Lie grou...

Maple

Can some one help me for converting three or two coupled pdes to odes using Lie group or any other method in maple

## Solution of PDE...

Maple

i want to solve these two coupled eqaut with finite boundary conditionsions. Can some one help me

eq1:=diff(f(eta),eta,eta,eta,eta)+2*(epsilon/(1+epsilon*theta(eta)))^2*diff(f(eta),eta,eta)*((diff(theta(eta),eta))^2)-(epsilon/(1+epsilon*theta(eta)))*(diff(theta(eta),eta,eta))*(diff(f(eta),eta,eta))=0;

eq2:=diff(theta(eta),eta,eta)+Pr*Re*f(eta)*diff(theta(eta),eta)=0;

Re:=1:Pr:=1:epsilon:=0.25:

bc:=f(1)=0,D(f)(-1)=0,D(f)(1)=1,D(f)(-1)=1,theta(-1)=0,theta(1)=0;

## Nondimensionalization of ODE...

Maple

Can some one help me " How to conert a three or four coupled equation by using non dimensions variable "

## Implicit finite difference method...

Maple

Dear, need help about Implicit finite difference method

plz reply as soon as possible

Thanks

## Partial derivatives...

Maple

psi = x^(4/5)*f(x, eta)/(1+x)^(1/20)

eta = y/(x^(1/5)*(1+x)^(1/20))

how can i (diff(psi, x))

how can i (diff(psi, y))

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