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difference between particle residence time and transient time

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Old   April 21, 2014, 01:02
Default difference between particle residence time and transient time
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shimsen
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I conducted calculation about particle residence time

Everything is good except transient time.

As you can see below there is difference between residence time legend and aprticle traces colored by particle residence time.

It means that the difference is considerable.

I think that although there is difference, it must be small enough.

Do you know why there are large gap between them?
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Old   April 21, 2014, 19:48
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Quote:
Originally Posted by shimsen View Post
I conducted calculation about particle residence time

Everything is good except transient time.

As you can see below there is difference between residence time legend and aprticle traces colored by particle residence time.

It means that the difference is considerable.

I think that although there is difference, it must be small enough.

Do you know why there are large gap between them?


It's interesting. If I understand what you mean correctly, the large difference usually indicates recirculation which trap the particles much longer time.
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Old   April 21, 2014, 22:59
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Thanks for reading

But I mean that there is large time difference between legend and time manifested below.

I think these time must be same because fluid and particle are calculated at the same time.

However, picture means that fluid flow is calculated ahead and particles are calculated independently.

That is my core question and I think it is not acceptable.
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