Bernoulli-induced self-cleaning in drainage pipes: visual micro-Venturi validation

This dataset comprises high‑resolution photographic documentation of the experimental setup and process for the study “Bernoulli‑induced self‑cleaning in drainage pipes: visual micro‑Venturi validation”. The images capture:(i) the assembly of the transparent micro‑Venturi rig, including the 67 → 15 mm PVC contraction, pressure‑tap installations, flange connections, and solvent‑welded joints;(ii) key visual evidence of the kaolinite coating on the Venturi throat before, and after flow‑induced detachment, directly illustrating the Bernoulli‑driven cleaning mechanism. All photographs were taken under consistent LED lighting using a smartphone camera. The dataset is provided as original.jpg files accompanied by a readme.txt file detailing the shooting context and naming convention.