Computational Fluid Dynamics (CFD) Simulation of Test Chamber and Smoke-Generating Device.
Abstract
The U.S. Army Research Laboratory (ARL) has completed an initial investigation of the flow field within a typical U.S. Army Edgewood Research, Development, and Engineering Center (ERDEC) test chamber via numerical simulation. The ERDEC test chamber is designed to mix compressor-driven airflow with gas/solid effluent from a test article placed inside the chamber. An example of such a test article is a smoke generator, or smoke pot. Simulation of this flow utilized ARL computational fluid dynamics (CFD) codes that include multispecies chemical kinetics. Numerical solutions of the gas flow and effluent concentration distributions in the test chamber were generated for operating times up to 4.5 min. Numerical simulations reveal that certain values of chamber through-flow induce flow patterns within the chamber that are dominated by rotating vortices. This flow pattern increases the effluent residence time in the chamber as well as the mixing of gas/particulate from the test article with air. As a result, pockets of high effluent concentration can form in the chamber. Graphical results with discussion are presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1995
- Accession Number
- ADA290199
Entities
People
- Michael J. Nusca
Organizations
- United States Army Research Laboratory