Create CAD-associative Fluid
Domains Within Complex
Assemblies


Remi Duquette, Director
MAYA Heat Transfer Technologies L...
NX powered by Synchronous Technology
Revolutionary Toolset for the CAE Users

   Provides an intuitive and direct approach...
Introduction to Synchronous Technology



  History‐Free, Feature‐Based Modeling
   – Simultaneously synchronizes geometry...
Need to make important “what if” CAD changes?
Leverage NX powered by Synchronous Technology




                          ...
NX powered by Synchronous Technology


  Modification of the model in it’s current state without regard for how 
  the mod...
Active & Smart Selection



                                     Simply select a hole 
                                   ...
Scrapbook Modeling

Re‐use portions of models without having to 
manually segregate and remove parameters, 
or export and ...
Synchronous Technology for Fluid
Domain Creation
Revolutionary Toolset for the NX Flow &
NX Electronic Systems Cooling Use...
Synchronous Technology for
Fluid Domain Creation
Example: Air Intake Manifold




                                        ...
Synchronous Technology for Fluid Domain
Creation
Example: Air Intake Manifold – Demo




                                 ...
Synchronous Technology for
Fluid Domain Creation
Air Intake Manifold – Temperature mapping Results


     NX Nastran – Map...
Synchronous Technology for
Fluid Domain Creation
Example: Thermal Imaging Camera



                    Perfect fluid doma...
y                  gy
Domain Creation
Example: Thermal Imaging Camera –
Demo




                                    Slide...
Synchronous Technology for
Fluid Domain Creation
Thermal Imaging Camera –
Air Streamlines & Temperature Results




      ...
Synchronous Technology for
Fluid Domain Creation
Example: Industrial Blower




                   Perfect fluid domain in...
Synchronous Technology for Fluid Domain
Creation
Example: Industrial Blower – Demo




                                   ...
Synchronous Technology for
Fluid Domain Creation
Industrial Blower – Air Streamlines Results




                         ...
Synchronous Technology for
Fluid Domain Creation
Example: Automotive Fuse Box



               Perfect fluid domain in 5 ...
Synchronous Technology for Fluid
Domain Creation
Example: Automotive Fuse Box – Demo




                                 ...
Synchronous Technology for
Fluid Domain Creation
Automotive Fuse Box –
Air Streamlines & Temperature Results




         ...
Other Fluid Domain Creation Techniques


 1. Fill it with Cuboids (Space Finder Method…)

 2. Assembly Wrapping Technique
...
[1] Fill it with Cuboids (Space Finder…)




This technique is typically used for quick conceptual CFD simulations. The “s...
[2] Assembly Wrapping Technique




                                  Slide 25
[3] Extract Faces & Patch Holes




                                  Slide 26
For more information, please contact us:
info@mayahtt.com
www.mayahtt.com
Remi Duquette, Director
remi.duquette@mayahtt.co...
MAYA HTT NX ST CAD-CAE Workflows
MAYA HTT NX ST CAD-CAE Workflows
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MAYA HTT NX ST CAD-CAE Workflows

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Remi Duquette of MAYA HTT presented at Siemens PLM Connection Europe 2008 on the advantages synchronous technology in NX provides CAE users.

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MAYA HTT NX ST CAD-CAE Workflows

  1. 1. Create CAD-associative Fluid Domains Within Complex Assemblies Remi Duquette, Director MAYA Heat Transfer Technologies Ltd. remi.duquette@mayahtt.com www.mayahtt.com
  2. 2. NX powered by Synchronous Technology Revolutionary Toolset for the CAE Users Provides an intuitive and direct approach to design… it is  simple, fast, and reliable  Adds a new History‐Free mode – Market leading functionality – Increased capacity for “what if” design studies, especially in  the context of CAE workflows  Super Easy CAD changes – with minimal learning curve Fluid domain generation workflow breakthrough for CFD  analysis with NX Flow or NX Electronic Systems Cooling Best set of design tools  – Powerful tool for CAE and Manufacturing Engineers – Works equally well on imported and native geometry – Frees you from the limitations of traditional history based  modelers  – Preserves your investment in history based modeling – Users choose best approach to get the job done This is the revolution in CAD/CAE workflows you were waiting for! Slide 3
  3. 3. Introduction to Synchronous Technology History‐Free, Feature‐Based Modeling – Simultaneously synchronizes geometry and rules  through a new decision‐making inference engine Accelerates innovation in four key areas – Design intent capture – Design changes • Especially for CAE/CAM users – Multi‐CAD data re‐use – Ease of use • Especially for CAE/CAM users Slide 4
  4. 4. Need to make important “what if” CAD changes? Leverage NX powered by Synchronous Technology If CAD geometry has features, you  can modify the model in it’s  current state without regard for  how the model was constructed  (ie you don’t need to know any of  the CAD geometry dependencies) If CAD geometry has no features  (“dumb” imported geometry), you  “What if” scenario for CAE specialist can edit the geometry directly  Slide 5
  5. 5. NX powered by Synchronous Technology Modification of the model in it’s current state without regard for how  the model was constructed…that is what the CAE user needs! Intent is what you intend to do now Slide 6
  6. 6. Active & Smart Selection Simply select a hole  face and start point… two clicks … and edit  the dimension The model is updated as  Active Selection  expected, and the geometric  automatically recognizes  relationships are maintained geometric relationships … coaxial, concentric, and   tangent in this case Slide 7
  7. 7. Scrapbook Modeling Re‐use portions of models without having to  manually segregate and remove parameters,  or export and import Functional design change with or without features Copy and paste geometry between files – Cut Face – detach face set and heal wound – Copy Face – copy to buffer for reuse – Paste Face – attach buffer  – Intelligent “add” and “subtract” attributes  on buffer for subsequent paste – Intelligent extension of buffer faces and target  faces Slide 8
  8. 8. Synchronous Technology for Fluid Domain Creation Revolutionary Toolset for the NX Flow & NX Electronic Systems Cooling Users Most electronic systems cooling problems and many  CFD problems require generation of the 3D  geometry representing the fluid domain Once the 3D fluid domain geometry created, the  automatic fluid domain mesher can be used: Driven from the 3D geometry Detects internal flow blockage geometry Automatically meshed with tetrahedral, wedge, and  pyramid elements Is usually bounded by walls, vents, and/or fans, and  other openings Creates a boundary layer mesh at walls where needed Synchronous Technology generates the fluid domain geometry required… Delete Face removes unwanted external surfaces Seals up holes, vents, and/or fan openings with  little/no user intervention Automatically creates continuous 3D geometry for the  fluid domain! Slide 10
  9. 9. Synchronous Technology for Fluid Domain Creation Example: Air Intake Manifold k s c lic in in 4 a id dom c t flu fe Pe r Slide 11
  10. 10. Synchronous Technology for Fluid Domain Creation Example: Air Intake Manifold – Demo Slide 12
  11. 11. Synchronous Technology for Fluid Domain Creation Air Intake Manifold – Temperature mapping Results NX Nastran – Mapped Temperature  NX Flow / NX Thermal  Boundary Condition Solid Temperature Results Slide 13
  12. 12. Synchronous Technology for Fluid Domain Creation Example: Thermal Imaging Camera Perfect fluid domain in 12 clicks Slide 14
  13. 13. y gy Domain Creation Example: Thermal Imaging Camera – Demo Slide 15
  14. 14. Synchronous Technology for Fluid Domain Creation Thermal Imaging Camera – Air Streamlines & Temperature Results Slide 16
  15. 15. Synchronous Technology for Fluid Domain Creation Example: Industrial Blower Perfect fluid domain in ~12 clicks (including RFR partition) Slide 17
  16. 16. Synchronous Technology for Fluid Domain Creation Example: Industrial Blower – Demo Slide 18
  17. 17. Synchronous Technology for Fluid Domain Creation Industrial Blower – Air Streamlines Results Slide 19
  18. 18. Synchronous Technology for Fluid Domain Creation Example: Automotive Fuse Box Perfect fluid domain in 5 clicks Slide 20
  19. 19. Synchronous Technology for Fluid Domain Creation Example: Automotive Fuse Box – Demo Slide 21
  20. 20. Synchronous Technology for Fluid Domain Creation Automotive Fuse Box – Air Streamlines & Temperature Results Slide 22
  21. 21. Other Fluid Domain Creation Techniques 1. Fill it with Cuboids (Space Finder Method…) 2. Assembly Wrapping Technique 3. Extract Faces & Patch Holes 4. Manual technique: create a large block and carve out  the fluid domain by multiple boolean operations and  extrude/cut operations Slide 23
  22. 22. [1] Fill it with Cuboids (Space Finder…) This technique is typically used for quick conceptual CFD simulations. The “stepped” fluid domain geometry  created is a crude approximation and is unreliable for curved shapes (unless you use extremely small cubes and/or  take the time to locally refine your mesh…local small cubes tend to lead to very long CFD solve time unnecessarily)  Slide 24
  23. 23. [2] Assembly Wrapping Technique Slide 25
  24. 24. [3] Extract Faces & Patch Holes Slide 26
  25. 25. For more information, please contact us: info@mayahtt.com www.mayahtt.com Remi Duquette, Director remi.duquette@mayahtt.com MAYA Heat Transfer Technologies Ltd.
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