When I visualize droplet properties in Fluent mass and heat transfer number appear to be negative. Is that possible?
Tagged: ansys-fluent, dpm
June 6, 2022 at 8:33 amFAQParticipant
Negative heat or mass transfer numbers are indeed physically possible and can happen if the concentration of the evaporating specie(s) in the gas phase is higher then the saturation concentration. Physically, this corresponds to liquid condensing back onto the droplet, but ANSYS Fluent built-in DPM mass and heat transfer models do not model this condensation. The negative values for mass and heat transfer are therefore only relevant for post-processing.
Introducing Ansys Electronics Desktop on Ansys Cloud
The Watch & Learn video article provides an overview of cloud computing from Electronics Desktop and details the product licenses and subscriptions to ANSYS Cloud Service that are...
How to Create a Reflector for a Center High-Mounted Stop Lamp (CHMSL)
This video article demonstrates how to create a reflector for a center high-mounted stop lamp. Optical Part design in Ansys SPEOS enables the design and validation of multiple...
Introducing the GEKO Turbulence Model in Ansys Fluent
The GEKO (GEneralized K-Omega) turbulence model offers a flexible, robust, general-purpose approach to RANS turbulence modeling. Introducing 2 videos: Part 1 provides background information on the model and a...
Postprocessing on Ansys EnSight
This video demonstrates exporting data from Fluent in EnSight Case Gold format, and it reviews the basic postprocessing capabilities of EnSight.
- Solver message during DPM calculation: “number of stepsize underflows during particle integration step is x”. What does it mean and how to get rid of it?
- ANSYS Fluent: Efficient Modeling of Spray Breakup using VOF-to-DPM Transition
- ANSYS Fluent: Describing Cavitation in a Centrifugal Pump
- Simulation of Exhaust Gas Recirculation (EGR) Cooler with CFD
- ANSYS Fluent: Lifeboat Launch – Overset & Dynamic Meshes with the Volume of Fluid Model
- Mixing Tank Modeling in ANSYS Fluent
- Optimizing Solid Distribution in Continuous Stirred-Tank Reactor
- Hydrodynamics and Wave Impact Analysis
- ANSYS Fluent: Simulating Multiphase Mixing within a Sparging Tank – Part 1
- Fluent: Simulating Multiphase Mixing within a Sparging Tank – Part 1
© 2023 Copyright ANSYS, Inc. All rights reserved.