I want to simulate the evaporation of micron size saline droplet in room temperature emitted from mouth using Fluent.
The question is how to define the saline droplet in fluent? I define multicomponent droplets (90 wt.% water and 10 wt.% salt, the salt is created by changing the properties of another droplet material selected from the fluent material dataset), but there is no evaporation. When I use pure droplets (100 wt.% water), it works.
Does anyone know how to resolve the issue?
Hi all，
I think the issue has been solved.
First, set water and sodium chloride from 'droplet particle', then define the multicomponent particle by adding the water and sodium chloride.
Second, in the DPM injection panel, set the mass fraction of water and sodium chloride in the multicomponent particle. Then, set water as a vaporizing phase and sodium chloride as a non-evaporating phase.
I upload the print script for your convenience.
The Fluent I use is 2020R2 (student version).
It works for me. Hope this can help you.
May i get your case file, as i am also struggling with the same.
@ Rajasekar Krishnamoorthy Hi, Rajasekar, I am now simulating saline droplet evaporation in an indoor environment. Hope it will help you. Feel free to discuss.
My particles experiences drop in temperature during its evaporation, is it possible. the droplet cooled to the wet bulb temp of air. then increasing, is that possible?
It could be. The heat will lose during evaporation. After the evaporation finished, the particle will warm again by the surrounding air.
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