ShockFXM++

1D Shock Tube simulator demonstrating the use of SplitFXM++

What does 'split' mean?

The user is directed to SplitFXM README for further details and documentation

How to install and execute?

This can be most easily used with VSCode. There is a tasks.json that contains the build and run commands that can be invoked directly from the IDE.

The driver program is in main.cpp which can be compiled and executed using Bazel.

Prerequisites (macOS 26.0+)

The build system is configured for macOS 26.0 on Apple Silicon. It requires:

• LLVM 14+: Installed via Homebrew (brew install llvm).
• Bazel: For building and dependency management.

Installation

Clone the required dependencies into the third-party directory:

• SplitFXM++
• SplitOPS++
• SplitDAE++
• SplitNewton++
• Cantera (Optional) - Add the include and lib folders in the cantera subfolder

Building with Cantera

Cantera support is disabled by default. To enable it:

• Command line: Run bazel build --define=SPLITFXM_USE_CANTERA=true //:main
• Config: Uncomment the relevant line in .bazelrc.

Benchmark

The code was run with $\Delta$ t = 1e-3 with 100 grid points and backward Euler (to minimize dissipation). Further agreement can be seen with larger grid points and better shock-capturing schemes.

Whom to contact?

Please direct your queries to gpavanb1 for any questions.

Do join the SplitFXM Google Group or send us an email for discussions and updates!