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Difference between 2 timesteps

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Old   November 2, 2009, 10:59
Default Difference between 2 timesteps
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Dr. Alexander Vakhrushev
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Hallo!

I'm trying to display in ParaView difference between fields values corresponding to 2 different time steps. I didn't find any solution. Would any one please give some tips how to do this. I found how to create shifted in time data using Time Shift Scale filter, but can not find easy way how to subtract those shifted values from current and display that.

I would really appreciate your help!
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Dr. Alexander VAKHRUSHEV

Christian Doppler Laboratory for "Advanced Process Simulation of
Solidification and Melting"

Simulation and Modelling of Metallurgical Processes
Department of Metallurgy
University of Leoben

http://smmp.unileoben.ac.at
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Old   November 18, 2017, 17:33
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Thomas Oliveira
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Hi,

I wasn't able to do that using the Time Shift Scale filter either.

Now, there is another solution. ParaView 5.4.0 introduced a new filter called Temporal Array Operator that makes it easy to calculate the difference between field values corresponding to two different time steps.

Best regards,
Thomas
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Old   November 20, 2017, 04:13
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Dr. Alexander Vakhrushev
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Hi Thomas,

thank you for the great tip, I will try it! Currently I was saving ddt(some_field) in my solver. Of course it is not a solution for the standard solvers of for old results.

Cheers,
Alexander
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Best regards,

Dr. Alexander VAKHRUSHEV

Christian Doppler Laboratory for "Advanced Process Simulation of
Solidification and Melting"

Simulation and Modelling of Metallurgical Processes
Department of Metallurgy
University of Leoben

http://smmp.unileoben.ac.at
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