Jump at the onset of saltation

Abstract

We reveal a discontinuous transition in the saturated flux for aeolian saltation by simulating explicitly particle motion in turbulent flow. The discontinuity is followed by a coexistence interval with two metastable solutions. The modification of the wind profile due to momentum exchange exhibits a second maximum at high shear strength. The saturated flux depends on the strength of the wind as $q_s=q_0+A(u_{\ast }-u_t)(u_{\ast }^2+u_t^2)$.

References in corpus (1)

• Saltation transport on Mars

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