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Use Result from one Study as Initial Condition for second Study
Posted 12 gen 2022, 10:02 GMT-5 General, Studies & Solvers, Biosciences Version 5.6 1 Reply
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Hello,
I'm having a problem with the following. I use comsol to solve two coupled differential equations for the two concentrations of the system over time. At some point in time(let's call it T) I want to increase the timestep drastically and my idea was to make the simulation from times 0 to T with the small time step in Study1 and to use the calculated concentrations from Study1 at time T for the second study as an initial condition in which the timestep is now really big. For one of the two concentrations that works fine - the initial condition is the correct one but for the second concentration comsol chooses 0 instead of the solution from Study1. A picture of my approach is inserted below. Has anyone faced a similar problem or knows how to solve it?
Best regards, Luca
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You may define time stepping rather freely, you do not need to do two consequent studies. I suggest something like the following:
range(0,T/100,T),range(T,T,100*T)
cheers Lasse