autodesk cfd for better building design by zhu ge
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' 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
' 2015 Autodesk
§ 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
' 2013 Autodesk, Inc. All rights reserved.
Autodesk is a registered trademark of Autodesk, Inc., and/or its subsidiaries and/or affiliates in the USA and/or other countries. All other brand names, product names, or trademarks belong to their respective holders. Autodesk reserves the right to alter product and services offerings, and specifications and pricing at any time without notice, and is not responsible for typographical or graphical errors that may appear in this document.