Abstract
Recent research literature on secondary airflow and sediment transport patterns over flow-transverse dunes is reviewed. Various issues surrounding the behaviour, modelling and sedimentological implications of near-surface airflow dynamics over dunes are discussed, including: the Law of the Wall; the Jackson and Hunt airflow model; the effects of streamline compression, acceleration and curvature on stoss slope shear stress; and, in particular, recent efforts to characterize secondary lee-side airflow patterns. A revised conceptual model of lee-side airflow is presented and areas for further research are identified regarding the implications of such patterns for dune sedimentary dynamics, morphology, and migration.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 47-75 |
| Number of pages | 29 |
| Journal | Progress in Physical Geography |
| Volume | 26 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2002 |
| Externally published | Yes |
Keywords
- Aeolian processes
- Boundary layer
- Lee-side airflow
- Sand dune dynamics
- Secondary airflow
- Sediment transport
- Shear stress
- Turbulence
- Wind tunnel simulation
- Wind velocity
ASJC Scopus subject areas
- Geography, Planning and Development
- Earth and Planetary Sciences (miscellaneous)
- General Earth and Planetary Sciences