Three-building and typical city multiple-building simulations

This paper summarizes research conducted in FY 2004 under High Performance Computing Modernization Program (HPCMP) DoD Challenge Project C-83 "Evaluation and Retrofit for Blast Protection in Urban Terrain." 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 are used to develop engineering models that can be used to quickly predict effects of adjacent structures on the blast load on a structure of interest. The primary focus of the FY 04 research was the simulation of a blast environment for a collection of three buildings and the extension of the simulations to include a typical multibuilding environment. This report summarizes the comparison of a three-building simulation with a companion experiment. Numerical simulations are then used to study the effects of five buildings and a typical city configuration of multiple buildings.