Numerical Simulations of Nine-Building Portions of a Typical City

This paper summarizes research conducted in the first half of FY 2005 under High Performance Computing Modernization Program (HPCMP) Challenge Project C-83 "Evaluation and Retrofit for Blast Protection in Urban Terrain." This is a 6-month extension to the Challenge Project originally scheduled to end at the end of FY 2004. The ERDC is continuing the development of improved models for predicting the blast environment for high-explosive detonations in urban terrain. This is an integrated experimental analytical program, where high performance computing (HPC) simulations are used to assist in designing experiments. The experiments are used to validate the numerical simulations, and the validated numerical simulations are used to help in understanding the phenomenology associated with blast in urban terrain. The experimental and numerical research is used to develop engineering models that can be used to quickly predict effects of adjacent buildings on the blast load on a building of interest. The primary focus of FY 2005 research was the simulation of blast environment for two different sets of nine buildings. Each nine-building configuration includes the two-building configuration simulated and tested previously. This report summarizes the effects of the additional seven buildings on the loads applied to the two buildings originally tested.