ANSYS, Inc. Release Notes

FLUENT |
7.1. Introduction   7.3. Supported Platforms for ANSYS FLUENT 13.0
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7.2. New Features in ANSYS FLUENT 13.0

New features available in ANSYS FLUENT 13.0 are listed below.

  • Solver

    • Pseudo-transient relaxation method

    • Conservation of rothalpy transport equation

  • Models

    • Turbulence

      • SAS turbulence model

      • Embedded/zonal LES (E-LES)

      • Enhanced wall treatment for the omega transport equation

      • Compatibility of the k-omega turbulence model with multiphase models

      • Turbulence transition model for rough walls

    • Heat transfer

      • Shell conduction zone manager

      • Improved shell conduction model performance

      • Cluster-to-cluster viewfactor calculations

      • Ability to compute solar loads in the parallel solver

      • Discrete Ordinates and P-1 radiation models compatible with Eulerian-Eulerian multiphase (non-granular)

      • Unlimited number of gray bands with the Discrete Ordinates model

      • Multi-band modeling now available with the P-1 radiation model

      • Improved parallel performance of the ray-tracing module

    • Species transport, reactions and combustion

      • Multiple spark model

      • Veynante extended coherent flame model (ECFM)

      • Option to model Arrhenius inter-phase reactions

      • Improved surface chemistry solver robustness

      • Improved multi-component solidification model

      • Faster unsteady NOx pollutant modeling

      • Characteristic time model

      • G-equation model

      • Chemistry agglomeration for faster detailed chemistry

      • Chemical mechanism dimension reduction

      • Compatibility of non-premixed model with the real gas equation of state

      • Thickened flame model

      • Unburnt partially-premixed properties extended to include a second mixture fraction

      • Ability to solve for detailed chemistry as a postprocessing step on a frozen flow field solving for selected pollutant species using constrained chemical equilibrium

      • Ability to report element flux balances as an additional check of convergence

      • Ability to input a single value of URF and Spatial Discretization to be used for all species

    • Discrete phase model

      • KHRT breakup model

      • Transient mass flow rate and velocity for injections

      • Dense DPM extended to include the packing limit

      • Improved DPM parallel performance

      • Ability to export particle data to CFD-Post for postprocessing

    • VOF

      • Compressive scheme

      • Zone specific VOF discretization

      • BGM scheme for steady-state VOF

      • Turbulence damping sources near free surfaces

      • Ability to specify higher-order waves

      • Numerical beach option for open channel flows

      • Coupled level-set method

    • Eulerian multiphase model

      • Multi-velocity sectional population balance module

      • Ability to model sub-cooled boiling, including non-equilibrium sub-cooled boiling

      • Improved treatment of volume fraction gradients for gas-liquid flows (improved robustness)

      • Ability to include real gas properties in Eulerian multiphase simulations

    • Population balance

      • Laakkonen kernel

      • Inhomogeneous discrete population balance model

      • Multi-velocity sectional population balance module

  • Boundary conditions

    • Subcritical flow enhancement for open channel boundary condition (VOF)

    • Bounded second order discretization in time

    • Ability to assign a velocity inlet boundary condition with compressible flows

    • Hybrid initialization

    • Average pressure specification boundary condition method compatible with the PBNS solver

  • Material properties

    • Droplet material properties expanded to include DPM vapor pressure data up to the critical point

    • Cryogenic droplet materials added

    • Peng-Robinson, Redlich-Kwong and Soave-Redlich-Kwong real-gas equations of state

    • Real gas models extended to sub-critical regime

    • Multiple mixture materials for species transport

    • Ability to use other materials with user-defined real gas

  • Data import and export

    • Ability to append case and data files in the parallel solver

    • Ability to export custom field function data in parallel to Fieldview

    • Ability to import TecPlot 360 meshes (including polyhedral cells)

    • Ability to export data in ASCII format in the parallel solver

  • Mesh

    • Transport equation-based (diffusion-based) mesh smoothing

    • Key frame mesh swapping

    • Ability to include adjacent boundaries during zone remeshing

    • Ability to replace zones in parallel

    • Steady non-conformal interfaces are now preserved in transient simulations for improved performance

    • Mesh morpher and optimizer

    • Ability to identify and improve poor quality cells

    • Cartesian remeshing (without boundary layer remeshing)

    • Mesh check progress indicator

  • Moving meshes

    • Ability to define an MRF zone within an MRF zone

    • Ability to specify a moving reference frame independent of the movement of the mesh for the same zone

  • Porous media

    • Ability to define porous jump as a non-transparent surface when using the solar load model

    • Ability to specify contact angle on porous jump boundaries (VOF)

  • Parallel processing

    • No longer necessary to encapsulate hexcore meshes

    • Improved performance for case file I/O

    • Optimized .pdat files for cases with large numbers of zones

    • Optimization for multicore architectures

    • Improved scalability for cases with sliding interfaces

    • Parallel I/O support for Lustre on Linux

    • Speedup of parallel checkpointing

    • Extended parallel file system support

    • Ability to couple FLUENT to the Remote Solver Manager (RSM). (Serial or local (shared memory) parallel jobs only)

  • Memory management

    • User-defined memory for nodes

    • Optimized memory usage for Tmerge utility

  • Graphics, postprocessing, and reporting

    • Ability to report fluxes for dense DPM phases

    • Ability to enable/disable in-cylinder specific output

    • Optimized monitor data writing

    • Ability to view mesh interfaces from the mesh interface dialog box

    • Selected boundary surfaces are now highlighted in the graphics window when selected

    • Ability to export DPM particle data to CFD-Post

    • Ability to plot radiative heat flux at flow boundaries

    • Ability to display and highlight selected surfaces/boundaries in the graphics window

    • Wild-card support for selecting surfaces with post-processing TUI commands

    • FLUENT window title text prepended by case name

  • User-defined functions (UDFs) and user-defined scalars (UDSs)

    • UDF access to MRF specifications for non-constant motion

    • Spark model user hooks

    • UDF access to model non-constant frames of motion in moving reference frames

    • UDF access to the absorption coefficient computed by the WSGGM

  • User interface

    • Toolbar buttons now available for standard views

  • Multi-physics

    • FLUENT coupling with HFSS/Maxwell/Q3D Extractor

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