Fig. Ensemble-averaged profiles of the streamwise velocity in a semilog plot. The present simulation with Ri=0 is shown in a light grey solid line; case C4 of Salon et al. (2007) in filled circles; experimental results of Jensen et al. (1989) in unfilled circles. The straight dashed line shows the log-law with κ =0.41 and B =5.2. (a) φ =0◦, 30 ◦ and 60◦; (b) φ =90◦, 120◦ and 150◦. Each profile is staggered by 30 units in the horizontal.
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