Topography Effects
Topography effect on wind flows (hence wind load) – also referred as “speed-up” can be effectively estimated through CFD based simulations. These simulations can also be used for wind farm siting.

Nasir Z., and Bitsuamlak, G.T. (2018). Topographic effect on a tornado like vortex. Wind and Structures, 27(2), 123-136.
Bitsuamlak et al. (2014) Application Guide for Wind Speed-up Factors. Published and distributed by CEATI (Center for Energy Advancement through Technological Innovation), Montreal, QC
Abdi, D. and Bitsuamlak, G.T. (2014). Wind flow simulations on idealized and real complex terrain using various turbulence models. Advances in Engineering Software, 75, 30–41.
Bitsuamlak, G.T., Stathopoulos, T., Bédard, C. (2007). Effect of topography on design wind load combined numerical and neural network approach”, Journal of Computing in Civil Engineering, ASCE, 21 (6), 384-392.
Bitsuamlak, G.T., Stathopoulos, T., Bédard, C. 2006. “Effect of upstream hills on design wind load: a computational approach. Wind and Structures, 9(1), 37-58.
Bitsuamlak, G.T., Stathopoulos, T., Bédard, C. (2004). Numerical evaluation of turbulent flows over complex terrains: A review, Journal of Aerospace Engineering, 17(4), 135-145.