Numerical Simulation of the Effects of Cooling Tower Complexes on Clouds and Severe Storms

摘要

A two-dimensional, time-dependent model has been developed which gives realistic simulations of many severe storm processes, such as heavy rains, hail, and strong winds. The model is a set of partial differential equations describing time changes of momentum, energy, and mass (air and water substances such as water vapor, cloud liquid, cloud ice, rainwater, and hail). In addition, appropriate boundary and initial conditions taken from weather sounding data are imposed on a domain approximately 20 km high by 20 km wide with 200 m grid intervals to complete the model. Modifications have been made to the model which allow additional water vapor and heat to be added at several lower grid points, simulating effluents from a power park. The results indicate that a power park emitting 80% latent heat and 20% sensible heat has little effect on the simulated storm. A case with 100% sensible heat emission leads to a much different solution with the simulated storm reduced in severity and the rain and hail redistributed. A case in which water vapor is accumulated in a region and released over a broad depth results in slightly more rain from a severe storm.