1. Self-similar decay of the drag wake of a dimpled sphere
- Author
-
D. Curtis Saunders, Gary Frederick, Scott Wunsch, and Theodore D. Drivas
- Subjects
Fluid Flow and Transfer Processes ,Physics ,Scaling law ,Work (thermodynamics) ,Drag ,Modeling and Simulation ,Computational Mechanics ,Mechanics ,Wake ,Scaling - Abstract
Recent experimental results from the drag wake of a dimpled sphere show that the observed wake growth and decay are inconsistent with a widely accepted, 100-year-old scaling law for these quantities. While previous experiments have found a similar discrepancy just behind the wake source, this work shows that the new law holds over a full decade in scaling of distance. The theory behind the existing wake scaling law is revisited, and a faulty assumption which may account for the discrepancy is identified.
- Published
- 2020
- Full Text
- View/download PDF