Abstract
A physical model was developed for the aerodynamic roughness length of gravel beds and sandy beds under different atmospheric stability conditions based on Monin–Obukhov similarity theory and dimensional analysis. The relationship between the roughness length, the properties of the roughness elements, the characteristics of the airflow, and an atmospheric stability parameter (the bulk Richardson number) was then studied using the model. Results showed that the roughness length was not only functions of the shape, height, and coverage of the roughness elements and of the airflow, but also dependent upon atmospheric stability. These results were in agreement with results from wind tunnel experiments and field observations.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
