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Neutral surface-layer flow over isolated roughness strips

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Abstract

Numerical simulations are used to study neutral surface-layer flow which passes over isolated or widely separated strips of modified roughness embedded in an otherwise homogeneous surface.

Simple power laws are given for the maximum height and horizontal extent of turbulent momentum and horizontal mean velocity wakes with an assessment of the range of validity of this proposal. Furthermore, it is indicated, how vertical profiles of energy budget and horizontal mean velocity are distorted by a roughness strip.

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Authors and Affiliations

  1. Forschungszentrum Geesthacht, Postfach 1160, D-2054, Geesthacht, Fed. Rep. Germany

    Martin Claussen

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  1. Martin Claussen
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Claussen, M. Neutral surface-layer flow over isolated roughness strips. Boundary-Layer Meteorol 48, 431–442 (1989). https://doi.org/10.1007/BF00123064

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