I am getting a problem to find the solution of DAE by stiff solver ode15s in MATLAB. The warning, reflected in command window is "Warning: Failure at t=2.100000e+000. Unable to meet integration tolerances without reducing the step size below the smallest value allowed (7.105427e-015) at time t. "
can anybody suggest me to get rid rid of from this?
Dear Ganesh Prajapat,
please refer to the following links.
http://scicomp.stackexchange.com/questions/19054/how-can-i-reduce-integration-tolerance-in-matlab
http://uk.mathworks.com/matlabcentral/newsreader/view_thread/238182
http://fr.mathworks.com/matlabcentral/answers/216913-ode-problem-unable-to-meet-integration-tolerances
https://www.researchgate.net/post/How_can_I_solve_an_ODE_with_matlab
Try solving your simulation in fixed step discrete mode.
or if you run your model in continuous mode please try changing the minimum and maximum step size.
Ganesh P. Prajapat Hi Did you find solution to the problem? Can you please share.
There was the problem of "no availability of the steady-state solution" in my case which I have observed by solving the problem manually. The same can be observed by simulating the problem upto the time after which the integration going to fail. In may case, I have tried my simulation near t=2.100000e+000 (look onto the question) and found the equation which is going out of bound.
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