DOE Studies

Once morphing is done, you can create shapes and design variables and submit DOE studies. The DOE study tool can be used for shape and CAD parameter DOEs, and for Automation. The purpose of this tool is to provide automation files so you can manually modify them and carry out DOEs.



Figure 1.
Problem name
This is auto-populated from the model file name. If the model is not saved – save it as an .hm file before using this tool.
Note: The problem name should be same as the name of the hm file saved on disk. The hm file should reside in the Study directory.
Study directory
Base directory where all automation files reside. All subsequent DOEs files are in a sub-folder within this directory.
Note: The hm file should reside in the Study directory. If you are planning to run DOEs or automation on another machine – you should take the entire study directory.
Solver
Solver utilized for DOEs or automation run. Based on the selected solver, subsequent fields are changed.
Note: For AcuSolve-based DOEs, you have to set up the entire model (geometry solver setting, mesh settings, surface outputs).
AcuSolve-specific fields
Solver exec dir
Path for folder where acuRun.bat is located.
No of processors
Run AcuSolve on this many of processors.
Response definition
Define variables and surface output.
Study type
Select from the list of available studies.

Shapes

Enables DOE studies based on morphed shapes and design variables.

  1. Prepare the base model.
    1. For the AcuSolve solver: Validate geometry, define physics setup, define mesh settings, perform surface meshing, define required surface output.
    2. For the uFX solver: Generate required surface mesh (no settings required).
  2. Morph geometry using free morphing tools or morph volumes.
  3. Create shapes and design variables.
  4. Open the DOE tool, define relevant fields, then click Launch.
  5. Finish setup in HyperStudy.
    Note: Do not change variable name/labels in HyperStudy.

For AcuSolve-based DOEs: With each update in design variable, surface mesh is morphed → volume mesh is performed → solver run is submitted → results are extracted.

For uFX-based DOEs: With each shape configuration, surface mesh is morphed → solver run is submitted → post-processing is run in batch.

CAD

Enables DOE studies based on CAD parameters available in the CAD file.

  1. Prepare CAD with parameters in CAD system.
    CAD parameters defined in NX, Catia, and Inspire are supported for DOE studies.
    1. You have to setup Define relevant environment to enable CAD system call from HyperMesh CFD.
    2. For Inspire,you have to define the Inspire path in preferences.
  2. Define template for automation.
    1. For the AcuSolve solver: Define template for geometric operation, boundary conditions, and meshing.
    2. For the uFX solver: Define template for geometric operation and surface meshing (if required).
  3. Open the DOE tool, define relevant fields, then click Launch.
  4. Finish setup in HyperStudy.

    CAD parameters are listed in HyperStudy, activate required CAD parameters.

    Note: Do not change variable name/labels in HyperStudy.

For AcuSolve-based DOEs: With each CAD configuration, new CAD is loaded → a template call runs geometric operations, performs setup, volume meshes the model, submits a solver run → results are extracted.

For uFX-based DOEs: With each CAD configuration, new CAD is loaded → a template call runs geometric operations, surface meshing → a solver run is submitted → post-processing is run in batch.

Solver

Enables DOE studies based on parameters defined for solver setup.

Restriction: For AcuSolve only
  1. Prepare the base model.
    1. For the AcuSolve solver: Validate geometry, define physics setup, define mesh settings, perform surface + volume meshing, define required surface output.
  2. Create parameters and associate them to physics setup.
  3. Open the DOE tool, define relevant fields, then click Launch.
  4. Finish setup in HyperStudy.
    Note: Do not change variable name/labels in HyperStudy.
For AcuSolve-based DOEs: With each update in solver parameter, solver files are exported → a solver run is submitted → results are extracted.

Mesh

Enables DOE studies based on parameters defined for mesh setup.

Restriction: For AcuSolve only
  1. Prepare the base model.
    1. For the AcuSolve solver: Validate geometry, define physics setup, define mesh settings, define required surface output.
  2. Create parameters and associate them to mesh setup.
  3. Open the DOE tool, define relevant fields, then click Launch.
  4. Finish setup in HyperStudy.
    Note: Do not change variable name/labels in HyperStudy.
For AcuSolve-based DOEs: With each update in solver parameter,surface and volume mesh are performed → solver files are exported → a solver run is submitted → results are extracted.
Note: Make sure the model is not meshed.

Automation

Enables automation for geometric variant.

  1. Load a new variant of geometry.
  2. Define a template for automation.
    1. For the AcuSolve solver: Define a template for geometric operations, boundary conditions, and meshing.
    2. For the uFX solver: Define s template for geometric operations and surface meshing (if required).
  3. Open the DOE tool, define relevant fields, then click Launch.
    1. In the study directory, open the bat file or shells script, update it as required, and execute that file.