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Please Help - How to use calculated value of a function F at time step 1, for...

I want to calculate the value of a function F(T,t)=A(T)*F(T,t). It means for calculating the F in a time step 2, I need the value of F from previous steps (step1). Can anyone help me to do such...

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Re: Please Help - How to use calculated value of a function F at time step 1,...

I am not sure how to program per time step, because I think in general COMSOL chooses it's own time steps. What is your variable T? I can immagine that A(T) would have to depend on the size of your...

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Re: Please Help - How to use calculated value of a function F at time step 1,...

thank you Pieter My variable is not T, is the potential applied to a pipeline (potential cathodic protection E_CP). I testing the potential of the electrolyte Eoff for each time step. And if Eoff>...

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Re: Please Help - How to use calculated value of a function F at time step 1,...

Hi Babaghayou, So what you want is that the potential of your pipeline is lowered when the potential of your electrolyte becomes too high? So what in your model controls the potential of your pipeline?...

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Re: Please Help - How to use calculated value of a function F at time step 1,...

Hi pieter In my model, the potential of pipeline (Eoff) is controled by "Domain Prob" and at each step of time give me the value of pipeline potential. The potential Eoff depend to the potential of...

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Re: Please Help - How to use calculated value of a function F at time step 1,...

The Eoff must remain in value between Vmin and Vmax and if Eoff>Vmax or Eoff<Vmax , i increase or reduce the potential of protection for maintain Eoff between these two values.

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Re: Please Help - How to use calculated value of a function F at time step 1,...

And how is this potential protection changed? Can you maybe upload your model?

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Please Help - How to use calculated value of a function F at time step 1, for...

I want to calculate the value of a function F(T,t)=A(T)*F(T,t). It means for calculating the F in a time step 2, I need the value of F from previous steps (step1). Can anyone help me to do such...

View Article


Re: Please Help - How to use calculated value of a function F at time step 1,...

I am not sure how to program per time step, because I think in general COMSOL chooses it's own time steps. What is your variable T? I can immagine that A(T) would have to depend on the size of your...

View Article


Re: Please Help - How to use calculated value of a function F at time step 1,...

thank you Pieter My variable is not T, is the potential applied to a pipeline (potential cathodic protection E_CP). I testing the potential of the electrolyte Eoff for each time step. And if Eoff>...

View Article

Re: Please Help - How to use calculated value of a function F at time step 1,...

Hi Babaghayou, So what you want is that the potential of your pipeline is lowered when the potential of your electrolyte becomes too high? So what in your model controls the potential of your pipeline?...

View Article

Re: Please Help - How to use calculated value of a function F at time step 1,...

Hi pieter In my model, the potential of pipeline (Eoff) is controled by "Domain Prob" and at each step of time give me the value of pipeline potential. The potential Eoff depend to the potential of...

View Article

Re: Please Help - How to use calculated value of a function F at time step 1,...

The Eoff must remain in value between Vmin and Vmax and if Eoff>Vmax or Eoff<Vmax , i increase or reduce the potential of protection for maintain Eoff between these two values.

View Article


Re: Please Help - How to use calculated value of a function F at time step 1,...

And how is this potential protection changed? Can you maybe upload your model?

View Article

Please Help - How to use calculated value of a function F at time step 1, for...

I want to calculate the value of a function F(T,t)=A(T)*F(T,t). It means for calculating the F in a time step 2, I need the value of F from previous steps (step1). Can anyone help me to do such...

View Article


Re: Please Help - How to use calculated value of a function F at time step 1,...

I am not sure how to program per time step, because I think in general COMSOL chooses it's own time steps. What is your variable T? I can immagine that A(T) would have to depend on the size of your...

View Article

Re: Please Help - How to use calculated value of a function F at time step 1,...

thank you Pieter My variable is not T, is the potential applied to a pipeline (potential cathodic protection E_CP). I testing the potential of the electrolyte Eoff for each time step. And if Eoff>...

View Article


Re: Please Help - How to use calculated value of a function F at time step 1,...

Hi Babaghayou, So what you want is that the potential of your pipeline is lowered when the potential of your electrolyte becomes too high? So what in your model controls the potential of your pipeline?...

View Article

Re: Please Help - How to use calculated value of a function F at time step 1,...

Hi pieter In my model, the potential of pipeline (Eoff) is controled by "Domain Prob" and at each step of time give me the value of pipeline potential. The potential Eoff depend to the potential of...

View Article

Re: Please Help - How to use calculated value of a function F at time step 1,...

The Eoff must remain in value between Vmin and Vmax and if Eoff>Vmax or Eoff<Vmax , i increase or reduce the potential of protection for maintain Eoff between these two values.

View Article
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