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Old   October 30, 2014, 10:13
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Hi,
i want to simulate a pipe that contains water! water's temprature is increased by hot air out of the pipe! water is initial at 300K and the air at 2000K! So we have water liquid inlet and water vapor outlet! How can i have this change of water's phase? Help me please!!!!!!!!
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Old   October 31, 2014, 03:01
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I think maybe this would help?

Phases→interaction...→Mass→increase "Number of Mass Transfer Mechanisms" to 1
→From phase2(water) to Phase 1(air+vapor), mechansim: evaporation-condensation

Need more help...
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Old   October 31, 2014, 08:50
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Thanks for your help,
I'm new on ansys. I did that, but i don't know what to do on Boundary Conditions. What phase and what type have to choose at hot air and at water on Boundary Conditions to give initial velocity and temperature?
Sorry for my English...
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Old   October 31, 2014, 09:28
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I want to have only air out of the pipe and change of the phase in to the pipe from water liquid to water vapor!
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Old   November 4, 2014, 16:04
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Quote:
Originally Posted by apo View Post
Hi,
i want to simulate a pipe that contains water! water's temprature is increased by hot air out of the pipe! water is initial at 300K and the air at 2000K! So we have water liquid inlet and water vapor outlet! How can i have this change of water's phase? Help me please!!!!!!!!
does your outlet is only vapor?
you should define volume fraction in inlet and outlet
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Old   November 6, 2014, 04:35
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My outlet is only vapor. I want to have phase interaction in the pipe from water liquid to water vapor and only air out of the pipe. I'm new on ansys, can anybody help me?
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