Buffeting along-wind loads on ventilation stack of nuclear power stations due to nearby natural draft cooling towers

Buffet loads due to high turbulence wakes of natural draft cooling towers (NDCT) on ventilation stacks of nuclear power stations is analysed using existing theories by making certain assumptions about the scale and intensity of turbulence. This issue can be important since these stacks do not carry any heavy linings as on stacks of thermal power stations and hence are prone to higher buffet loads. Results are compared with some wind tunnel model experimental data and found to give reasonable conservative estimates. (author)