Physical and computer modeling of trawl doors

The article presents the results of research in the field of modeling trawl doors and solid structures. The study uses two modeling methods, namely physical and computer modeling. Physical and computer modeling of trawl doors provide a joint study of the hydrodynamics of trawl doors, which allows a complete and broader understanding of the hydrodynamic characteristics of the studied trawl doors. The best hydrodynamic characteristics of trawl doors are the following indicators: the maximum value of the expansion force coefficient cy, the minimum value of the drag coefficient of the trawl door cx, the maximum value of the hydrodynamic quality k, high static and dynamic stability, as well as strength. An important means for verifying the results of computer modeling of trawl doors is the verification of the obtained data using physical models of trawl doors and the results of experimental studies carried out with them in a hydraulic channel.