April 9, 2022 at 8:30 pmMasiSubscriber
I modeled an unsteady multi-component (3 species) injection in the open air (to model spray in the open air)
DPM : two-way / unsteady/ solid-cone / multi-component ( 2 of 3 components evaporated)/ injection duration 0.1 s / injection velocity 100 m/s / max. number tracking 1000 /
Continuous phase: LES (WALES)
time step: 0.0005,
but evaporated particle=0, why does it happen?
Please help me in this issue.April 11, 2022 at 12:34 pmRobAnsys EmployeeIf it's multi component and one component doesn't evaporate there will always something left.
April 11, 2022 at 2:17 pmMasiSubscriberThank you for your reply! You mean that in the solution console,evaporated=0 because one of the components is non-evaporation. So, the solution is correct? and the other components' evaporation are not reported in output?
April 11, 2022 at 4:00 pmRobAnsys EmployeeThe report is for when that parcel is evaporated: so if one component does not evaporate no droplets are ever going to reach that state. Double check you have some of the non-evaporating component in the particle mixture for the injection.
April 11, 2022 at 4:56 pmDrAmineAnsys EmployeeAlways check DPM summary. Particles with non volatile approach will never fully evaporate.
April 11, 2022 at 10:16 pmMasiSubscriberHi DrAmine, My components are Alcohol, Hydrofluorocarbon-134a and the other one is a specific material, thatAlcohol and Hydrofluorocarbon-134a are 100% volatile materials and the third one is non-volatile. when I change the geometry of nozzle the evaporation happens (in the report). but with a specific shape, it is " evaporated=0" (in the report).But After completion of the calculation, when comparing the result of both of them seem that they are the same.
April 12, 2022 at 5:16 amDrAmineAnsys EmployeeI would say if you have a particle having a non volatile component with final fate evaporated then there is a small problem with the report.
Viewing 6 reply threads
Ansys Innovation Space
- You must be logged in to reply to this topic.
Boost Ansys Fluent Simulations with AWS
Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.Trending discussions
- Floating point exception in Fluent
- What are the differences between CFX and Fluent?
- Heat transfer coefficient
- Difference between K-epsilon and K-omega Turbulence Model
- Getting graph and tabular data from result in workbench mechanical
- The solver failed with a non-zero exit code of : 2
- Suppress Fluent to open with GUI while performing in journal file
- Mesh Interfaces in ANSYS FLUENT
- Time Step Size and Courant Number
- error: Received signal SIGSEGV
© 2023 Copyright ANSYS, Inc. All rights reserved.Ansys does not support the usage of unauthorized Ansys software. Please visit www.ansys.com to obtain an official distribution.