Dataset and code for "CFD-Assisted Mass-Transport Analysis and Hybrid XGBoost-Gaussian Process Optimisation of Flow Fields in Anion Exchange Membrane Water Electrolyzers"

Complete CFD dataset (50 solved cases), machine-learning analysis scripts (XGBoost, Gaussian process, Random Forest surrogates), multi-seed Bayesian optimisation results, SHAP interaction matrices, weight-sensitivity analysis, and publication figures for the accompanying manuscript. Version v2 adds five corner-point CFD verification cases (corner_verify.csv) that bracket the GP-BO optimum, corresponding to manuscript Section 3.6.3 and Table 4.