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Windows Batch Scripting for CAE Solver Automation

30 Chapters

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Windows Batch Scripting for CAE Solver Automation

course scope, solver automation challenges, and the role of cmd.exe in engineering workflows.

Batch script fundamentals for CAE

variables, environment variables, and parameter expansion for solver input decks and output directories.

Control flow for solver runs

IF, FOR, GOTO, and CALL to manage sequential and conditional execution of CAE jobs.

File and directory operations for CAE

COPY, MOVE, DEL, MKDIR, and REN to stage input files and archive results.

directoryoperations

Parsing solver input files with batch

FOR /F, tokens, delimiters, and skip options to extract model parameters and boundary conditions.

delimitersparameters

Launching CAE solvers from batch

START, CALL, and direct invocation for Abaqus, ANSYS, Nastran, and OpenFOAM on Windows.

Capturing solver output and exit codes

redirection, ERRORLEVEL, and logging for convergence and failure detection.

Capturingredirection

Environment setup for CAE solvers

PATH, license variables, and solver-specific environment variables in batch scripts.

Parameter sweeps and design of experiments

nested FOR loops and variable substitution to automate multiple solver runs.

Parameterexperiments

Batch script modularization

CALL, labels, and subroutine libraries for reusable CAE automation components.

modularizationCALL

Error handling and retry logic

checking solver status, handling non-zero exit codes, and implementing retry loops.

handlingchecking

Parallel solver execution

START /B, /WAIT, and job scheduling to utilize multiple cores and reduce turnaround time.

Parallelexecution

File naming and version control

timestamping, incremental numbering, and directory structures for CAE result management.

timestampingincremental

Post-processing automation

invoking Python, MATLAB, or CAE-specific post-processors from batch scripts.

Post-processingautomation

Batch scripting for mesh generation

automating meshing tools and mesh parameter studies.

scriptinggeneration

Automating boundary condition and load case variations

batch-driven input file modification and solver restarts.

Automatingboundary

Integration with job schedulers

submitting CAE jobs to Windows HPC Server, PBS, or SLURM from batch scripts.

Integrationschedulers

Logging and reporting

generating run summaries, CSV reports, and HTML logs from batch scripts.

reportinggenerating

Batch script debugging and profiling

ECHO, PAUSE, and logging techniques for troubleshooting solver automation.

debuggingprofiling

Security and robustness

handling spaces in paths, special characters, and long file names in CAE workflows.

Securityrobustness

Batch scripting for CAE license management

checking out, monitoring, and releasing solver licenses.

Automating CAE solver restarts and checkpointing

detecting divergence and restarting from saved states.

Batch-driven parametric CAD and geometry updates for CAE

invoking CAD tools and updating model files.

Batch-drivenparametric

Coupling batch scripts with version control systems

Git, SVN, and automated commit of CAE input decks.

Batch scripting for CAE data management

archiving, compression, and cleanup of large result files.

Real-world case study

automating a structural analysis workflow with Abaqus and batch scripts.

Real-worldautomating

Real-world case study

automating a CFD workflow with ANSYS Fluent and batch scripts.

Real-worldautomating

Real-world case study

automating a thermal analysis sweep with Nastran and batch scripts.

Real-worldautomating

Best practices for maintainable CAE batch automation

documentation, naming conventions, and error handling.

practicesmaintainable

Advanced topics and future directions

PowerShell interoperability, Python integration, and CI/CD for CAE automation.

Advanceddirections