[Date Index]
[Thread Index]
[Author Index]
NDSolve Unable to find initial conditions that satisfy the residual function
*To*: mathgroup at smc.vnet.net
*Subject*: [mg116380] NDSolve Unable to find initial conditions that satisfy the residual function
*From*: "Ali K. Ozdagli" <ozdagli at gmail.com>
*Date*: Sat, 12 Feb 2011 05:20:44 -0500 (EST)
Hello all,
When I write the following to mathematica
NDSolve[{0.04*u[z, t] == -3*(D[u[z, t], z])^(1/3) + 0.02*z*D[u[z, t], z] -
D[u[z, t], t], Derivative[1, 0][u][1, t] == 0, u[z, 0] == 0}, u, {z, 1, 2},
{t, 0, 1}, MaxSteps -> 10^4, AccuracyGoal -> 8, SolveDelayed -> True];
Although the solution is relatively easy, u[z,t]=0, it gives the following
errors:
NDSolve::ibcinc: Warning: Boundary and initial conditions are inconsistent.
>>
NDSolve::icfail: Unable to find initial conditions that satisfy the residual
function within specified tolerances. Try giving initial conditions for both
values and derivatives of the functions >>
I do not see any inconsistency in the boundary conditions and don't know why
mathematica cannot find a solution.
Any help is appreciated.
Best,
Ali
Prev by Date:
**Re: list manipulation**
Next by Date:
**Re: ContourPlot confusion**
Previous by thread:
**Re: solution of equation**
Next by thread:
**Nonorthogonal Eigenvectors**
| |