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A platform for research: civil engineering, architecture and urbanism
Large eddy simulation of the flow around a low-rise building immersed in a rough-wall turbulent boundary layer
The objective of this paper is to validate the large eddy simulation (LES) technique for predicting a flow around an obstacle under the condition that a turbulent flow is approaching the obstacle. The turbulent inflow data were generated for both a smooth surface and rough surfaces by the method we had proposed. A half-height cube was immersed in the turbulent boundary layers with several types of vertical velocity profile. With regard to the pressure distributions on the surface of the half-height cube, the computed time-averaged and rms values are in good agreement with previous experimental ones. However, the peak pressure coefficients are underestimated, especially compared to full-scale data.
Large eddy simulation of the flow around a low-rise building immersed in a rough-wall turbulent boundary layer
The objective of this paper is to validate the large eddy simulation (LES) technique for predicting a flow around an obstacle under the condition that a turbulent flow is approaching the obstacle. The turbulent inflow data were generated for both a smooth surface and rough surfaces by the method we had proposed. A half-height cube was immersed in the turbulent boundary layers with several types of vertical velocity profile. With regard to the pressure distributions on the surface of the half-height cube, the computed time-averaged and rms values are in good agreement with previous experimental ones. However, the peak pressure coefficients are underestimated, especially compared to full-scale data.
Large eddy simulation of the flow around a low-rise building immersed in a rough-wall turbulent boundary layer
Nozawa, K. (author) / Tamura, T. (author)
2002
12 Seiten, 17 Quellen
Conference paper
English
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