Abstract
A method is investigated for the solution of time-dependent problems concerning wind flow and wind pressure around a structure in two-dimensional, turbulent, airflow at large Reynolds numbers. The method is numerical, using a computer, for the solution of a finite-difference approximation to the governing equations of motion, with subgrid scale effects simulated with eddy coefficients proportional to the local velocity deformation. The computational example is given about a long cylinder of square cross-section with a front angle of attack, and the result seems to be in good agreement with the experimental data. It is concluded that the numerical approach to the problem of such as a Building scale phenomenon is already profitable.
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