Text Box: Thermal Analysis

The ADINA Thermal program is used for the solution of heat transfer problems in solids and structures. It has powerful features such as radiation between surfaces of arbitrary geometries, element birth-death options and capabilities for highly nonlinear material behaviour.

Temperature field of turbine casing


Temperature field of turbine casing, convection boundary conditions.

A unique capability of ADINA Thermal is the analysis of radiation between surfaces. The surfaces can have arbitrary geometries, can be arbitrarily obstructed and radiate upon themselves.


The bottle in this figure was analyzed using this radiation capability
.

Welding-induced residual stress analysis requires a reliable nonlinear analysis system with specialized modeling techniques. ADINA Thermal and ADINA Structures are used successfully in welding analysis.

 

Thermal analysis for SAW (Submerged Arc Welding), multipass butt weldment. The finite element calculation was performed using the birth/death options of the elements, with material properties highly dependent on temperature. The solution was obtained using 3 restart runs and 1,500 time steps.

Laser Engineered Net Shaping (LENS®)

Capabilities of ADINA Thermal include:

 

Basic assumptions used in modelling thermal analysis:

· Steady state

· Transient

· Thermal Eigenvalues

· 1-D, 2-D and 3-D conduction

· Shell conduction

· 2-D and 3-D convection

· 2-D and 3-D radiation

· Radiosity (2-D and 3-D)

· Radiation between arbitrary surfaces

· Full & Comprehensive Thermal Mechanical Coupling with ADINA Structures

· Electrostatic, seepage and piezo-electric analysis

· Latent heat effects, e.g., freezing and melting conditions

· Other Field problems

 

Material models:

· Conduction

- Constant

- Orthotropic

- Temperature dependent

- Time dependent

· Convection

- Constant

- Condensation

- Temperature dependent

- Time dependent

· Radiation

- Constant

- Temperature dependent

· Seepage

· User Coded

 

 Boundary conditions available:

· Internal heat generation

· Latent heat

· Distributed / concentrated thermal loads

· Convection

· Radiation

· Current density

· Electrical potential

· User coded

 

General:

· Constraint equations

· Rigid links

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