Changes between Version 2 and Version 3 of imuk/projects/2012_06

Timestamp:

May 28, 2013 8:03:56 AM (12 years ago)

Author:

hschulz

Comment:

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imuk/projects/2012_06

@@ -3 +3 @@
 Project type: bachelor thesis \\
 Duration: 01/2012-05/2012 \\\\
-An LES has been performed of an neutrally stratified, pressure driven turbulent flow above and within a 15 m high idealized vegetation canopy. The influence of the vegetation elements was described in PALM by the embedded vegetation model after Watanabe (2004).\\
-Mean profiles and turbulence statistics were compared with results from other LES and experimental data. The vegetation model could be validated. Coherent turbulent structures developing according to the mixing-layer analogy (Raupach et al., 1996) were analyzed by calculating turbulence length scales from mean vertical velocity gradients and two-point correlations at the canopy top.\\
+Large-Eddy Simulation of a neutrally stratified, pressure-driven turbulent flow above and within a 15 m high idealized vegetation canopy. The influence of the vegetation elements was described in PALM by the embedded vegetation model after Watanabe (2004).\\
+Mean profiles and turbulence statistics were validated against results from other LES studies and experimental data. Coherent turbulent structures developing according to the mixing-layer analogy (Raupach et al., 1996) were analyzed by calculating turbulence length scales from mean vertical velocity gradients and two-point correlations at the canopy top.\\
 A sensitivity study was performed to investigate effects of the numerical grid resolution on the model’s results, particularly with regard to vertical transport and the spacing between coherent eddies forming from inflection point instabilities at the canopy top.