Abstract
This study aimed to compare the aerodynamics of a shoulder amputee cyclist through computational fluid dynamics (CFD) and mathematical models. The geometry of the cyclist-bicycle system was collected by a Sense 3D scanner. The boundaries around the bicycle-cyclist system were defined on Ansys Workbench software. The velocities were set between 1 and 13 m/s with increments of 1 m/s. To compare the drag, ANOVA and simple linear regression models between CFD and mathematical models for absolute values and logarithmic transformations were used. No statistically significant variations between CFD and the analytical procedures were found (F = 0.335; p = 0.800; η2 = 0.021). The linear regression models between CFD and analytical procedures showed a very high adjustment for drag in absolute values for Pugh, Schneau, and Nonweiler (R2 = 0.996; Ra2 = 0.992; SEE = 0.933) and after logarithmic transformation (R2 = 0.996; Ra2 = 0.995; SEE = 0.046).
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