Documentation

Read the docs. Run the tutorials. Reproduce the papers.

Three tracks. Search across all of them. The reference section mirrors the solver source one-to-one — every governing equation links to the file that implements it.

Getting started

Up and solving in twenty minutes.

EST · 20 min · 4 lessons

Tutorials

Seven worked decks. Open, modify, re-solve.

EST · 4 hr · 7 walkthroughs

Reference

Authoritative docs — paper-cited.

REF · always current

Quick install

Three lines and you're solving.

FSAP ships as a signed installer for Windows and macOS, and as a wheel for Linux. The CLI and Python module install together; the GUI is a single binary.

Drop a deck on disk, point the CLI at it, and pipe results to wherever you want them.

# macOS / Linux
$ pip install fsap
$ fsap init my_network.fsap
$ fsap solve my_network.fsap --mode steady

# Windows (signed installer)
> fsap.exe solve .\my_network.fsap ^
    --mode transient ^
    --t-end 120.0 --dt 0.05

Examples

Worked example decks.

Every tutorial ships as an editable .fsap deck. Open one, change a number, re-solve — these are the same networks the docs walk through.

Pump + valve + pipeT1 · steady

LOX tank · GHe press.T2 · multi-fluid

Tank blowdownT3 · transient

Cryo line chilldownT4 · conjugate HT

Heat exchanger sizingT5 · ε-NTU

Two-phase vaporizerT6 · boiling