autodesk cfd for better building design by zhu ge

' 2013 Autodesk

Autodesk CFD For Better Building Design

< Zhu Ge/朱戈>< Technical Sales Specialist>

Agenda

1. Why Simulate

2. Autodesk CFD Features

3. Key Application Areas of Autodesk CFD

4. Demonstration

Why Simulate?

§ To Validate Designs

§ Design Optimization

§ Reduce Reliance on Physical Testing

§ Accelerate Development

Why Simulate?

§ Eliminating unnecessary costs§ Removing uncertainty from time lines§ Improving quality and customer

satisfaction§ Reducing unknown risks§ Securing competitive differentiation§ Increased global competition§ Increasing project complexity§ Increased regulation

Traditional Barriers to CFD Simulation

Simulation for Whom?

Novice Expert

DesignerNovice

Professional EngineerGeneralist

AnalystExpert

Conceptualize Design CertifyNeeds To?

Effortless to Use, Transparent to Workflow

Easy to Use, Integrated, Fast & Intelligent

Broad, Powerful, DefinitiveMust Be?

Who?

Wants? Direction & Confidence

Insight & Optimization

Accuracy & Performance

Simulation Driven Design

Conceptualization Design Development & Digital Prototyping

PhysicalTesting

Manufacturing Process Development

Product Implementation

Time

Effe

ct

Traditional design process

Preferred design process

Ability to impact functional capabilities

Cost of design changes

§ Designed for the non-specialist

§ BIM Centric Simulation(AnyCAD)

§ Automated- Streamline & simplify the setup & meshing

§ Fast & Accurate

§ Broad capability

“Autodesk Autodesk CFD is the fastest way for designers and engineers to determine the air flow and thermal performance of multiple designs options early in the design process….”

Autodesk CFD Features

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§ Direct modeling with BIM

§ MultiCAD data exchange

§ Design study automation

§ Multiscenario design review center

§ Customizable material databases

§ Results visualization

Simulation CFD Features | Design Study Environment

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Advanced options include:§ Compressible§ Transient§ Mixing§ Cavitation§ Solar loading§ Relative humidity§ Current§ Voltage

Autodesk CFD Features | Fluid Flow and Heat Transfer

Fluid flow options:§ Laminar§ Turbulent§ Incompressible§ Steady state

Heat transfer options:§ Conduction§ Convection

• Forced convection• Natural convection

§ Radiation

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Simulate components/systems within machinery:§ Hydraulics§ Pneumatics§ Ovens§ Blowers§ Flow startup§ Capture transient pressure§ Fluid flow development§ Mixing

Simulation CFD Features | Mechanical and Industrial Applications

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§ Simplified heat sink model§ PCB characterizer § Compact thermal models (CTM)§ Thermostat-controlled fans§ Customizable fan database§ Conduction§ Convection§ Forced convection§ Natural convection§ Joule heating

Simulation CFD Features | Electrical and Lighting Applications

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§ Linear

§ Angular

§ Rotating/turbomachinery

§ Combined linear and angular

§ Combined orbital and angular

§ Nutation

§ Sliding vane

§ Unconstrained motion

Simulation CFD Features | Fluid motion flow

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§ Rapid Model Defeaturing and Simplification§ Intuitive Simulation Feature Creation§ ECAD Support§ Associative Push from SimStudio to CFD

CFD 2016 Geometry and MeshingAutodesk SimStudio Tools 2016

Use BIM/CAD Model as the Sim Model

Leverage Setup Automation

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§ Solar loading

§ Two-phase flows (humidity and steam)

§ Thermal comfort calculation

§ Smoke

Autodesk CFD Features | Architectural and MEP Applications

Autodesk CFD Features | Free Surface

https://www.youtube.com/watch?v=WNKHf937Qt0

Advanced Turbulence Models

MeshingAdaptation Improvements

up to 20x

faster

Parallelized Autosizing

Boundary Layer Gradation

Mesh Adaptation: Free Shear Layers

Mesh Adaptation: Compressible Shocks

Spatially Variable Boundary Conditions

Often times users need to specify BC with gradient. This has been raised on IdeaStation.

Applications include- Models where inlet conditions need to

match physical measurements- Wind shear applications

IdeaStation Requests

Spatially Variable Boundary Conditions

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Autodesk fi CFD Flex Flexible cloud solving options

http://simhub.autodesk.com/tv/simulation-cloud-solving-options

Sample Design Challenges – Flow/Thermal§ Is the air flow balanced in the room?§ What is the temperature variation through the

room space?§ Will the occupants in the room be

comfortable?§ Will temperature variation affect equipment?§ What is the local mean age of the air?§ Will the room be too hot or too cold due to

sun/shade?§ Is the ventilation design optimized for

minimum running costs?§ Is there a more efficient way of heating the

room?

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Key Application Areas for Autodesk CFD

Assessing IAQ(Indoor Air Quality)

analyze airflow patterns with any degree of confidence, without the exorbitant expense of constructing a full-scale model of the space. -Marty Wallace, Senior Associate, Genesys Engineering

As built design Optimized retro-fit design

Projected energy savings

Single room ~ 1,000/yearBuilding ~ 70,000/year

Campus ~ 1M/year

Assessing IAQ – Case Study

Natural Ventilation

Natural Ventilation

Natural ventilation can reduce energy consumption by 10-30%

Thermal Comfort

Original ceiling diffuser design

Revision with slot diffusers & radiant panels

Office Buildings can realize up to 50% energy savings

using strategies which incorporate radiant heating

and cooling

before the project is constructed. This allows them to make more informed decisions pertaining to project costs and lets them evaluate system and energy trade-offs as well. Providing this type of service helps distinguish us from our competition.

Darryl McClellandBIM and Virtual Design ManagerHeapy Engineering

Thermal Comfort – Concert Hall

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Thermal Comfort Washington Airport

River Pollution Model

Ceetron 3D Plugin

Smoke Migration

https://www.youtube.com/watch?v=s-gBHSLhOSQ

Smoke Migration

External Air Flow

https://www.youtube.com/watch?v=2KfAI_zCdqo

External Solar

Data Centers

https://www.youtube.com/watch?v=lX-k-Hj0dH0

Data Centers

New data centers can cost 2.5k-3.5k/m2

Retrofits can be far more cost effective and save 100k+

Data centre retrofits and ECMs can yield:• 10-160/m2/year

• 2 year return

Data Centers – Case StudyModel From Architect / MEP Client

43 racks + 6 UPSNo ceiling plenumIrregular layout with obstructionsRequire add’l 72 kW equipment

Baseline SIM ModelShowing Temp Throughout Room

Widened cold aisle in high density areaClosed off tiles along west wallDeactivated 1 CRAC and relocated 2 others17°F lower max temp with ~ 20-25% less cooling energy

Modified SIM ModelExamining Impact of ECMs

https://www.youtube.com/watch?v=i2tjaXxk4wM

§ Existing facility in New York§ Three floors (approx 100,000 SF)§ Server locations essentially fixed§ Recommendations:-

§ Move floor and ceiling tiles§ Baffle curtains§ Update CRACs§ Move 1 CRAC

§ Results§ Reduce load by 750,000 kWh/yr§ Saving 50k- 80k per year

Data Centers – IBM Data Center

The Supply Chain - Air Handling Units

Autodesk CFD Common HVAC Product Applications

The Supply Chain - Diffusers

SIM CFD Case Studies

Autodesk CFD Case Studies — Roof Hood

The Supply Chain – Case Study

Mechanical Heat Recovery Ventilation systems

The Supply Chain – Case Study

Ventive S System

https://www.youtube.com/watch?v=fxjZ8r_fn4I

The Supply Chain – Case Study

Factory Simulation

§ Meet IPCC requirements§ Controlled / fugitive emissions§ Cross-contamination mitigation§ Improve temperature control§ Reduce energy consumption

https://www.youtube.com/watch?v=firm3ZFC3q4

Factory Simulation – Case Study

Temperature Pressure

High pressure, low temperature regions indicate possible overconditioning/overcooling

Low pressure, high temperature regions indicate possible underconditioning/undercooling

Factory Simulation – Case Study

Summer Winter

Same-scale temperature comparison reveals superior summer thermal uniformity

Factory Simulation – Case Study

SIM CFD Case Studies

1.7 Million = infections/year contracted in hospitals in the US99,000 = patient deaths/year in the US due to infection contracted FROM the hospital$33 Billion = cost to healthcare industry

Use Simulation CFD to ensure patient and staff safety

Infection control and patient / occupant safety

SIM CFD Case Studies

SIM CFD Case Studies

As-Built Optimized Retrofit Design

Operating Room: Infection ControlSurgical Suites, OR’s, Biosafety Labs, Vivariums

“Autodesk Simulation helps us show healthcare facilities what is actually going on with airflow in their ORs versus what should be happening theoretically. This is really important when challenging an industry to rethink its practices.”

Reduce nearly 100,000 deaths/yr due to HAI’s

https://www.youtube.com/watch?v=XeBRYxQth2w

Workflow Demonstration

What’s Special About Autodesk CFD?

§ BIM Centric Simulation

§ Fast & Accurate Results

§ User Friendly

§ Helps Companies Win Business

§ Affordable and Accessible

“Autodesk Autodesk CFD is the fastest way for designers and engineers to determine the air flow and thermal performance of multiple designs early in the design process….”

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SIM CFD Quick-Start Training

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Learning and Education

More information at www.autodesk.com/learning

Authorized Training Center (ATC®)§ Enhance your productivity§ Increase your competitive edge§ Get hands-on, instructor-led classes§ Choose from over 2,000 ATC sites in more than 90 countries

Learning tools§ Use your software to its full potential§ Perform ahead of the curve§ Access a wide range of skill levels and topics§ Choose from Autodesk® Official Training Guides, books,

e-books, e-learning, and training videos

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Self Learning:

§ Tutorial in Simulation CFD

§ Simulaton TV: http://simhub.autodesk.com/tv

DemonstrationAutodesk Simulation CFD & Revit BIM modelhttps://www.youtube.com/watch?v=6HHxV3CYuwkSimplifying Revit components for CFDhttp://simhub.autodesk.com/tv/cfd-simplifying-revit-componentsLeveraging Revit Data & CFD: http://simhub.autodesk.com/tv/cfd-revit-data

Q&A

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