Abstract During the winter months, cooling towers operating in western Canada may experience strong winds and subfreezing temperatures. This condition can lead to large ice formations at the windward intake. Part 1 of this study demonstrated that wind will cause a dramatic increase in air flow through the windward intake, which may partially account for the increased ice formation at the windward intake. Part 2 examined the use of protective wind walls to reduce the windward intake flow rate. The present study focuses on a two-dimensional finite-volume model of the flow over a cooling tower. The cooling tower structure is implemented in the form of internal boundaries. Predictions with the protective wind wall are also made in the present study. Although the results are preliminary, the computational code also shows the wind to have a significant effect on the cooling tower intakes.