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25 Apr, 2024

Tiny Underwater Sand Dunes May Shed Light on Larger Terrestrial and Martian Formations

December 6, 2022 sarah JonasResearch Results

In Physics of Fluids, researchers have been studying the dynamics of how crescent-shaped sand dunes are formed. Known as barchans, these formations are commonly found in various sizes and circumstances, on Earth and on Mars. Using a computational fluid dynamics approach, the team carried out simulations by applying the equations of motion to each grain in a pile being deformed by a fluid flow, showing the ranges of values for the proper computation of barchan dunes down to the grain scale.