CD-adapco - Physics
http://www.cd-adapco.com/products/star-ccm%C2%AE/physics
Motion
Overset
Allow multiple overlapping overset zones
Useful for modeling applications such as gear pumps
Virtual Disk Model
Body Force Propeller Method for marine applications
DFBI Model
Four-DOF Maneuvering Motion – motion specified in a plane, whilst other four degrees of freedom unconstrained
Planar Motion Carriage – for modeling ship maneuverability
Lagrangian
User coding now available for particles and injectors, both Lagrangian and DEM
Specification of particle diameter, particle mass flow rate, body force and energy source
Particle lift model
Shear lift – available for both Lagrangian and DEM
Particle size may now be specified as a time varying cumulative density function (CDF)
New option to define flow rate per parcel stream
Exact eddy interaction time option for turbulent dispersion
Allows the user to choose method of how Lagrangian sub-step is chosen when turbulent dispersion is used
Turned on will represent previous behavior, unselected may improve speed but at the cost of accuracy
Enthalpy difference method for calculating the latent heat of vaporization of droplets
Option to stop Lagrangian/DEM sub-stepping when the stop button is pressed
Previously user had to wait until sub-stepping was complete
Progress bar and stop betting now available under tree
DEM
Rotational lift model (using Magnus force equation)
Rotational drag model
1-way wall to DEM particle heat transfer
Rolling friction computation for DEM now separated from the Hertz-Mindlin model, and a total of three rolling friction models are available:
Force Proportional rolling model (default model used in version 8.02 and before)
Constant Torque rolling model (new in this version)
Displacement Damping (new in this version)
Geometry parts may now be used to define lattice and random injectors
Fluid Film
Fluid film compatible with moving meshes
Rigid Body Motion and Morpher
Allows complex water management and soiling analyses
Blockage effect of liquid film accounted
Fluid film solidification with removal of solidified mass
Removed mass used to morph boundary to model accumulation on the wall
Useful for modeling applications such as ice build up
VOF
Cavitation Model
Option to scale cavitation rate based on its sign to control the rate of bubble growth and collapse independently
Turbulence
Standard k-w Model updated to Wilcox’s 2008 formulation
Better prediction of separated flows
Reduced dependence on free-stream/inflow boundary conditions
Standard Non-Linear k-e Models
Exposed Reynolds Stresses as field functions
Acoustics
FW-H Collect on TRN for Post-Processing Model
Collects unsteady source surface data into a TRN file
At the post-processing stage, then calculates the far-field noise contribution at the receivers location
For impermeable surfaces, and transient stationary simulations
Equation of State
Real Gas models now compatible with PPDF combustion (equilibrium and flamelet)
Thermal Non-Equilibrium Ideal Gas Model
Typically used for problems such as hypersonic re-entry and nozzle flows
Two temperature model – translational-rotational temperature, and vibrational-electronic temperature
Materials
Specification of dynamic viscosity and thermal conductivity of water and steam based on the IAPWS specification for use with the IAPWS real gas models
Reacting Flow
Soot Two-Equation Model (Moss Brookes Hall soot model) for non-premixed combustion.
Solves two additional transport equations
New Surface Chemistry Model, available with the following models:
The Homogenous Reactor with Surface Chemistry model
The Eddy Break-Up (EBU) model
The Non-reacting model with Segregated Species
Radiation
Circumferential heat flux averaging for steady state simulations
Rotationally averaged interface for the simulation of rapidly rotating parts with non-symmetric heat flux
Geometry divided up into averaging strips
Heat flux may be averaged on internal fluid/solid interface or on external boundary
Compatible with co-simulation
Effect of soot formation now included in DOM radiation
EMAG
Transverse Magnetic Potential Model – Simulate transverse magnetic mode in 2D
Impressed currents and flux linkage calculations are supported using the excitation coil model
Harmonic balance
User specified vector of modes to construct filtered mode field functions
Boundaries
New options for Free Stream boundary condition
Altitude, Length Scale, and Reynolds Number
Altitude and Mach Number
For both new options the corresponding atmosphere can be defined as Standard (1977 Standard Atmosphere), or by a User Table
Flow Split Outlet
Option to use a specified mass flow rate (Segregated Solver)
Fan Interface
Specify performance curve as a table
Specify performance curve as the difference of static pressure downstream and total pressure upstream
Stagnation Inlet
Pressure jump option – Fan, porous jump, or loss coefficient
Pressure Outlet
Pressure jump option – Fan, porous jump, or loss coefficient
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