Serbest stil yüzmede iki farklı kol vuruş tekniğinin hesaplamalı akışkanlar dinamiği ile zamana bağlı akış analizi

This study analyzes how the propulsive force is created by the hand and arm in front crawl swimming. To answer this question, 12 swimming cases with variations in swimming velocity and arm velocity are compared using three dimensional straight and elbow angled arm models by doing unsteady flow analysis with computational fluid dynamics (CFD). The results show that the straight arm model creates more propulsive force than the angled arm. The results also reveal that linear hand velocity must be faster than swimming velocity in order to create good amount of propulsive force. In addition, the push phase of swimming has higher propulsive force than the pull phase. From this perspective, this study emphasizes the preferred arm position and the right time for a swimmer to use their effort to create the maximum propulsive force during front crawl swimming.