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July 10, 2022, 22:28 |
DPM heat transfer
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#1 |
New Member
JiangZeping
Join Date: Apr 2021
Posts: 10
Rep Power: 5 |
Using DPM to calculate the convective heat transfer of bubble flow, but after the injection of bubbles, the fluid, and the temperature of the heating wall did not change, it is impossible ah, I have selected the continuous phase and discrete phase interaction, is there any heat transfer options I did not pay attention to it, please give some advice, thank you very much.
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July 11, 2022, 04:48 |
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#2 |
New Member
JiangZeping
Join Date: Apr 2021
Posts: 10
Rep Power: 5 |
Can DPM determine the effect of particles on the continuous phase in addition to tracking particle trajectories? For example, heat transfer, or do I need to include a multiphase flow model
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July 11, 2022, 05:26 |
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#3 |
Senior Member
Alain Islas
Join Date: Nov 2019
Location: Mexico
Posts: 142
Rep Power: 7 |
Yes, DPM can account for heat and mass exchange between the droplets and continous phases. Besides enabling the "Interaction with continous phase" checkbox, check that in the injection panel, the DPM laws (e.g., heating, etc..) are enabled
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July 11, 2022, 08:41 |
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#4 | |
New Member
JiangZeping
Join Date: Apr 2021
Posts: 10
Rep Power: 5 |
Quote:
Thank you for your answer. I also ended up noticing the law option for the bubble flow I simulated, and I noticed that it seems like the law here applies more to droplet and evaporating. I just need to simulate the effect of bubbles on convective heat transfer, through Ansys fluent theory guide, I can only choose Law 1, do you agree with this, or have any suggestions to help me? |
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July 11, 2022, 09:21 |
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#5 |
New Member
JiangZeping
Join Date: Apr 2021
Posts: 10
Rep Power: 5 |
I read in the Ansys Learning Forum that someone said that DPM_LAW only changes the particle temperature, it is not added directly to the energy equation for heat transfer calculations. That is, the temperature change and interaction of the particles are not updated to the fluid near the particles, and the injection of bubbles does not have the effect of heat transfer. Is that so? Can that partner explain?
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February 1, 2023, 09:32 |
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#6 |
New Member
Montadhar Guesmi
Join Date: Dec 2018
Posts: 3
Rep Power: 8 |
Did you try to activate the particle wall heat exchange under wall BC?
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February 1, 2023, 09:40 |
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#7 |
New Member
JiangZeping
Join Date: Apr 2021
Posts: 10
Rep Power: 5 |
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Tags |
bubble, dpm in fluent |
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