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Solving for a long geometry

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Old   June 23, 2016, 10:50
Default Solving for a long geometry
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Nkl
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Nikola
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Hello to everyone!

I am trying to solve a multi-region heat transfer problem and i am wondering how to avoid computing for a 10m long pipe. Is there a way to solve only for the initial part of the geometry and then jump to the last (where the direction of my fluid changes)?

Thanks in advance!
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Old   June 23, 2016, 12:23
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Sheikh Ahmed
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You can save some of your computational time by dividing the domain into several blocks (multi-block) and the use finer grids to the inlet and outlet with relatively coarser grids at the middle. Also you can easily run in parallel.
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Old   June 24, 2016, 05:21
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Nkl
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Nikola
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Thank you for your response. Dividing in multiple blocks and refining the bottom and top parts of the geometry is what i did at the beginning. The problem is that the simulation ended up crashing the whole time because the mesh was not uniform.

I was wondering if there's a way of skipping the computation in the middle part of my geometry and having a guess of the "inlet" values for the upper part once the bottom one is solved.
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