Multiphase Flows

Multiphase Flows

  1. All Categories
  2. Fluids - Multiphase Flows
  3. When I visualize droplet properties in Fluent mass and heat transfer number appear to be negative. Is that possible?

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 am
      FAQFAQ
      Participant

      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.

Featured Articles

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.

© 2024 Copyright ANSYS, Inc. All rights reserved.