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Finding the Volume Inside a Data Range for 3D Volume Plots

Posted 2021年4月8日 GMT-4 04:48 General, Battery Design, Results & Visualization Version 5.3a 2 Replies

Fahrizal Perdana Fahmul
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Hi COMSOL forum!

I am currently working on a Solid Oxide Fuel Cell (SOFC) simulation. I am looking for a way to calculate a "volume of a certain region which considered inside the data range".

I attached the picture of my current problem.

Thank you and regards, Perdana - Student of engineering

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2 Replies Last Post 2021年4月9日 GMT-4 06:56
Robert Koslover Certified Consultant
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Posted: 4 years ago 2021年4月8日 GMT-4 10:23
Updated: 4 years ago 2021年4月8日 GMT-4 10:24

I suggest you integrate a Boolean expression across a larger volume that includes the volume of interest to you. You need to set up your Boolean expression to evaluate to 1 (aka, true) wherever the quantity of interest to you falls within the desired range of values, and 0 (aka, false) wherever the quantity of interest to you falls outside of the desired range of values. Integration can be done via post-processing under Results, or can be set up as a probe.

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Scientific Applications & Research Associates (SARA) Inc.
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I suggest you integrate a Boolean expression across a larger volume that includes the volume of interest to you. You need to set up your Boolean expression to evaluate to 1 (aka, true) wherever the quantity of interest to you falls within the desired range of values, and 0 (aka, false) wherever the quantity of interest to you falls outside of the desired range of values. Integration can be done via post-processing under Results, or can be set up as a probe.
Gunnar Andersson COMSOL Employee

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Posted: 4 years ago 2021年4月9日 GMT-4 06:56

Robert's advice is the right solution in 5.3a.

In 5.5 and 5.6 you can get a more accurate result by creating a Filter dataset that extracts the region of interest and integrating 1 over the Filter dataset.

Robert's advice is the right solution in 5.3a. In 5.5 and 5.6 you can get a more accurate result by creating a Filter dataset that extracts the region of interest and integrating 1 over the Filter dataset.

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