ISC-PRIME VERSUS WIND-TUNNEL OBSERVATIONS FOR MULTI-TIERED, SLOPED, POROUS STRUCTURES

摘要

This paper evaluates the validity of ISC-PRIME for modeling multi-tiered, sloped, porous structures. ISC-PRIME was proposed for use to model a pair of such structures that were to be located near two proposed combustion turbines. The local agency questioned the use of BPIP determined building dimensions as inputs to the model due to the complexity of the surrounding structures. Hence, wind-tunnel testing was conducted to determine the equivalent building dimensions for ISC-PRIME input. During the course of the study, building dimensions were defined using both the BPIP analysis program and wind-tunnel determined "equivalent building dimensions" (EBD). ISC-PRIME was then run for 36 wind directions and one wind speed using both sets of building dimensions as input. The predicted concentrations were compared with wind-tunnel measurements obtained using a scale model of the facility.