Figure 9
From: Numerical simulation of wind field and sand flux in crescentic sand dunes

Simulation of the sand distribution on the leeward side in several cases. (a) At the wind velocity of 10 m s−1; (b) high Reynolds; (c) at the wind velocity of 12 m s−1; (d) difference between (a) and (b); (e) difference between (a) and (c). The map was plotted using Surfer 16 (https://www.goldensoftware.com/).