78th Annual Meeting of the APS Division of Fluid Dynamics (Nov 23 — 25, 2025)

V023: Exotic and old-fashioned method to study supersonic flowHydraulic analogy and AerodynamicsJoseph Yakubov , Bakhram Musabekov , Nuriddin Abdujabarov

This work demonstrates the use of the hydraulic analogy in shallow water channels (HC-1 and HC-2) to model supersonic aerodynamics. Flow visualizations include the interaction of two bodies in tandem and during separation, wing-ground effects over uneven surfaces, and the overtaking of shock waves with Mach numbers 1.5 and 3.7. The experiments reveal complex shock-body interactions across all incidence angles, showing that hydraulic analogy remains a powerful tool for studying supersonic flow phenomena.Using shallow water hydraulic channels (HC-1, HC-2), we model supersonic flows and shock interactions. Visualizations include tandem body separation, wing-ground effects over uneven surfaces, and overtaking shocks at Mach 1.5 and 3.7. These results highlight the hydraulic analogy as a powerful method for studying complex supersonic phenomena. Archival videos and photographs recorded over 30 years ago at Tashkent Technical Institute named after Abu Raykhan Beruni.