Giulio Turinetti • Technical Director • 22/11/2018

ALTAIR SIMLAB : PIATTAFORMA UNICA PER LA PROGETTAZIONE MULTIFISICAVibro-Acustica, Termo-Strutturale e Fluido dinamica

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ALTAIR AT A GLANCE

Headquartered in Troy, MI US

Founded 1985 69offices in 24 countries

ALTRNasdaq

50+ISV partners under our unique,

patented licensing model

2000+Engineers, scientists and creative thinkers

5000+Customer installations globally

60,000+Users

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Altair transforms design and decision

making by applying simulation,

machine learning and optimization

throughout product lifecycles.

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CULTURE & VALUES

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EVOLUTION OF PRODUCT DESIGN TOOLS

“We are truly in the era of simulation-driven engineering, an era where simulation can help synthesize and define the physical design, rather than

simply evaluate and validate a completed design.” (CIMdata - 2016)

Prototypes &

Physical Testing

3D CAD

2D CAD &

Manual Design

CAE

Simulation-driven

Design

1980s 1990s 2000s 2010s 2020s

Pro

duct D

esig

nP

roduct V

alid

ation

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WHAT IS MULTI-PHYSICS

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ALTAIR SOLVER TECHNOLOGY

Multiphysics Simulation and Optimization

Structural

Analysis

Manufacturing

Simulation

Systems

SimulationFluid

Dynamics

Thermal

Analysis

Crash, Safety,

Impact & Blast

Electro-

Magnetics

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ELECTRIC MOTOR – MULTIPHYSICS BY DEFINITION

Thermal CFD

Mechanical Stress VibrationElectromagnetic

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IS IT POSSIBLE TO DO MULTIPHYSICS SIMULATION?

Ma chi può essere

Multifisico?Ci penso io!

Dai seriamente…

MULTYPHYSICS IS:

➢ Cross disciplines

➢ Requires different tools

➢ Complex!

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SIMLAB 2019

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ALTAIR SIMLAB

Single Analysis platform that incorporates Multi-Physics using Altair Solver Solutions

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MODEL CREATION

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MULTI-PHYSICS MODEL PREPARATION

✓ Identify wetted surfaces

✓ Specify mesh control

✓ Find features like holes

✓ Global mesh criteria

✓ Close Fluid Volume

✓ Generate Boundary Layer

✓ Generate Volume mesh

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MULTI-PHYSICS MATERIALS DEFINITION

Solid Material

Fluid Material

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FLUID-DYNAMICS ANALYSIS (CFD FOR COOLING)

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MULTI-PHYSICS CFD ANALYSIS ✓ Create new CFD solution

✓ Apply inflow condition

✓ Apply Outflow condition

✓ Wall definition

✓ Impose Thermal Flux

✓ Wall with convection

✓ Run the simulation

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MULTI-PHYSICS CFD ANALYSIS

✓ Termperature distribution

✓ Pressure level

✓ Convective coefficient

✓ Plot thermal curve

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THERMAL ANALYSIS

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MULTI-PHYSICS THERMAL CONDUCTION

✓ Create new solution

✓ Map previous solution

✓ Free air Convection

✓ Create contacts

✓ Run the simulation

✓ See the results

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STRESS MECHANICS

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MULTI-PHYSICS STRUCTURAL ANALYSIS

✓ Create new solution

✓ Define Contacts

✓ Constraint the structure

✓ Map temperature

✓ Run the simulation

✓ See the results

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MULTI-PHYSICS DYNAMICS ANALYSIS

✓ Create new solution

✓ Define contact

✓ Trasfer the constraints

✓ Run the simulation

✓ See the modal results

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TIME COST AND ACCURACY

Model Variation Preliminary model Accurate Model

Mesh creation 2 min 10 min

CFD Solution 10 min 2.5 hour

Thermal Analysis 2 min 4 min

Structural Analysis 3 min 8 min

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TIME COST – CFD OUTLOOK

Error on max temperature < 1%

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AND MORE

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ELECTROSTATIC WITH FLUX

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MESH DEFINITION

The grid spacing influence the final result in

terms of accuracy and level of details

Best practice can be learned on the field to

reach good expertise

SimLab che provide automatically a mesh

sensitivity study to help customer to increase

awarness in mesh prcess and get the righ

mesh size

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MESH CONVERGENCE STUDY

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CONCLUSIONS

✓ Single evironment for Multi-Physics approach

✓ Easy to learn

✓ Easy to use in setup definition

✓ Single post-processing

✓ Full integrate Altair Solvers

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THANK YOU FOR YOUR ATTENTION!

TURINETTI@ALTAIR.COM+39 3467560475