Wind Environment Assessment Research Articles

“Dispersion”in Wind Environment Assessment

“Dispersion”in Wind Environment Assessment

Wind Data for Wind Environment Assessment

Wind Data for Wind Environment Assessment

Criteria for Wind Environment Assessment

Criteria for Wind Environment Assessment

Pedestrian Wind Environment Around High-Rise Residential Buildings in Hong Kong

This paper describes a study of the assessment of pedestrian wind environment using two methods, namely, wind-tunnel scale modelling and numerical computational fluid dynamic (CFD) simulation. An estate of high-rise residential towers in Hong Kong is used as the test case. The two methods were found to yield broadly similar results in predicting wind-flow patterns through the complex. Wind factors of up to three times the free-site wind speed were predicted by both methods. There were, however, some disagreements in the detailed location and extent of the severe areas, which indicates further investigation and validation is required before CFD methods can be comfortably used in practice.

Development of a flow solver using the adaptive Cartesian mesh algorithm for wind environment assessment

Abstract A new flow solver is developed for wind environment assessment in which a very complex flow field over a number of buildings should be taken into account. The adaptive Cartesian mesh algorithm is used so as to automatically generate meshes for complicated flow geometry. In this approach, a flow field is decomposed into a number of cubic cells and a cell is recursively divided into eight children cells where curvature of flow geometry or gradient of flow variables are large. The numerical scheme is based on the artificial compressibility method and the finite volume method is used for discretization. The cells are organized with the tree data structure and the numerical algorithm for the tree data structure is described. Computational results are presented and the efficiency of the algorithm is discussed.