Fluent Icing is a workspace that incorporates the in-flight icing simulation technology of Ansys FENSAP-ICE with Fluent in a seamless fashion within a single user interface. FENSAP-ICE modules DROP3D for droplet and ice crystal impingement and ICE3D for surface water runback and ice accretion are accessed by Fluent as built-in solver libraries. In addition to reaching parity with FENSAP-ICE, Fluent Icing will leverage sophisticated models of Fluent (turbulence, DPM, shell conduction, VBM, porous media, etc.) and will become the mainstream icing simulation tool provided by Ansys.
Note: To leverage the full capabilities of the Fluent Icing environment, the following packages should be included in your Ansys installation.
FENSAP-ICE (Required for remeshing and Viewmerical & CFD-Post post-processing)
EnSight (Required for the Post-Analysis feature)
Fluent Icing incorporates the three principal aspects of in-flight icing simulations, airflow, particles (droplet and ice crystal impingement limits and shadow zones), and ice accretion. It has no geometric limitations and is applicable to aircraft, UAVs, nacelles, probes, detectors, etc.
Important: The current version of Fluent Icing exposes only a subset of the full in-flight icing capabilities and modules of FENSAP-ICE. In this version, the FENSAP-ICE modules exposed are, FENSAP for airflow (as an alternative to Fluent), DROP3D for particles and ICE3D for ice. More complete information regarding these modules can be found in the FENSAP-ICE online documentation.
The following types of icing analysis can be performed with the current release of Fluent Icing
Particles
Standard droplets, SLD (break-up, splashing and bouncing) and crystals
Transport of vapor
Appendices C, O and D icing environments
Predefined droplet size distributions
Langmuir A (Monodispersed) to E
Appendix O Distributions
User-defined droplet and crystal size distributions
Ice
Rime, glaze and mixed icing calculations
Single & multiple quasi-steady shots called multi-shots
Automatic mesh deformation and remeshing using Fluent Meshing during multi-shot calculations
Note: The following features are not displayed inside Fluent Icing’s graphical environment. However, if they are present and set-up appropriately in the case file, they will be supported by Fluent Icing and its respective solvers.
Gravity
Cell Zones - Frame Motion
Translational Velocity is not supported. Moreover, if multiple cell zones are used, all cell zones must use the same rotation-axis origin/direction and the same rotational velocity.