hecras-lab Muncie baseline Failure taxonomy Example projects

HEC-RAS Linux Lab

Systematic, evidence-first interrogation of the HEC-RAS compute engines — so the automation built on top of them is grounded in measured behavior, not assumptions.

Headline finding: HEC-RAS exit code 0 is not a success signal. Runs with 427% volume error, a truncated HDF, and a missing plan file all exited 0. Middleware must gate on log signatures, volume-accounting error, and HDF Results-group completeness. Full taxonomy →

6.6

engine version (Linux)

6.4 s

Muncie 2D wall time

0.049%

Muncie volume error

failure experiments

3,403

Muncie 2D cells

Runs

Muncie 2D baseline — depth map, volume error, boundary hydrographs

Findings

Failure taxonomy — 11 deliberate breakages, exact error text, triage rules
Example project findings — HEC's 7.0 examples as parser/anatomy reference

Source

Experiment harness and notes: github.com/gheistand/hecras-lab