Text Box: CFD

The ADINA CFD (Computational Fluid Dynamics) program provides state-of-the-art control volume and finite element capabilities for incompressible and compressible flows. The flows can contain free surfaces and moving interfaces between fluids, and between fluids and structures. An arbitrary Langrangian-Eulerian (ALE) formulation is used.

 

The procedure used in ADINA CFD is based on finite volume and finite element discretization schemes, with a most general and efficient solution approach. General flow conditions in completely arbitrary geometries can be solved.

Some of the capabilities of ADINA CFD include. This is by no means exhaustive!:

 

Basic assumptions used in modeling fluid flows

· Full Navier-Strokes or Euler equations.

· Incompressible

· Low speed compressible

· ‘Slightly’ compressible

· Fully compressible

· Steady-state or transient analysis.

· Laminar or turbulent flows.

· Flows with or without heat transfer

· VOF (Volume of Fraction)

· Mass transfer.

 

Material models for Incompressible, ’slightly’ compressible and low speed compressible flows

· Constant viscosity, heat capacity and thermal conductivity.

· Non-Newtonian models.

· Power Law

· Second Order

· Carreau

· Conversion from ASME Steam Table

· LES

· Temperature-dependent viscosity, heat capacity and thermal conductivity.

· Temperature-dependent Power Law

· Porous materials with Darcy Law flow

· Porous materials with non-Darcian or Darcy Forchheimer. Used for Fibre type materials.

· Time-dependent viscosity, heat capacity and thermal conductivity.

· Pressure plus Temperature dependent

· Turbulence models

· Prandtl mixing-length

· k-ε

· RNG k-ε

· k-ω SST

· Spalart-Allmaras

· Detached Eddy Simulation

· User Coded

 

Material models for High Speed Compressible flows

· Sutherland formulae for viscosity and thermal conductivity, constant heat capacity.

· Pressure-dependent viscosity, heat capacity and thermal conductivity.

· Temperature-dependent viscosity, heat capacity and thermal conductivity.

· Temperature plus Pressure dependent viscosity, heat capacity and thermal conductivity.

· Power Law

· Flows with high Mach numbers

· k-ε

· RNG k-ε

· User Coded

 

Boundary Conditions for Incompressible Flow

· Wall / Moving Walls

· Convection / Radiation

· Specular-Diffusive Radiation

· Free surface

· Fluid-Structure Interaction

· Fluid-Fluid

· Phase Change

· Gap

· Angular velocity

· Uniform Flow

· Thermal Resistance

· Heat Transfer through Shells

· Sliding Meshes

· General Friction

· Vent

· Fans

· Periodic

· Centrifugal / Coriolis

· Prescribed solution variables

· Concentrated / Distributed loads

· Concentrated / Distributed heat flow

· Rigid Body motion

· User Coded

 

Boundary Conditions for Compressible Flow

· Wall / Moving Walls

· External Flow

· Supersonic Inlet

· Subsonic Inlet

· Outlet Control

· Outlet Free

· Symmetrical

· Specular-Diffusive Radiation

· Free Surface

· Fluid-Structure Interaction

· Fluid-Fluid Interface

· Phase Change

· Gap

· Angular velocity

· Centrifugal / Coriolis

· Prescribed solution variables

· Concentrated / Distributed loads

· Concentrated / Distributed heat flow

· Rigid Body motion

· User coded

 

General Capabilities

· Cavitation

· Electro-Magnetic effects

· Constraint Equations

· Skew Systems

· Automatic Remeshing

· Restarts with Mapping

· Element Birth / Death options

Simulation of Impeller Flow with ADINA FSI with sliding mesh capabilities.

Porous material model is included

in this ADINA Multiphysics.

Simulation of Propeller Flow with ADINA FSI. Note that the structural response of the (von Mises stress) Propeller is shown.

A Rreciprocating Compressor simulation is shown above and below.

A Thermal Fluid-Structure-Interaction of an exhaust manifold. Turbulent flow, bolt elements and thermal contact. 5 million elements in total.

Flowchart: Alternate Process: More Automotive
examples
Flowchart: Alternate Process: More Turbomachineary
examples

Tel: +44 (0)121 703 9236 or e-mail: info@pdslimited.com

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ADINA ANALYSIS MODULES

FEA Structural

Thermal Mechanical Coupling

CFD

Multiphysics

Electromagnetics

ADINA User Interface

Thermal

Solid Modeller

Fluid Structure Interaction

CAD / CAE Interfaces