- Author
-
Barber, E. M.
|
Kusuda, T.
|
Reynolds, P. J.
|
Powell, F. J.
- Title
- Study of Air Distribution in Survival Shelters Using a Small-Scale Modeling Technique. Final Report.
- Coporate
- National Bureau of Standards, Washington, DC
- Report
-
NBS 10 689
February 1, 1972
- Distribution
- AVAILABLE FROM: National Archives, Civilian Records, Room 2800, 8601 Adelphia Road, College, Park, MD 20740-6001, Telephone: 301-713-7230
- Keywords
-
fallout shelters, ventilation; air; convection (atmospheric); equations of motion; human engineering; model tests; scale; flow fields; civil defense systems; venting; aspect ratio; prandtl number; flow visualization; water
- Abstract
- The development of an experimental small-scale modeling technique for conducting simulations of air distribution patterns in full-sized rooms is described. The technique was applied to simulate the motion of air in a single-room survival shelter. The parameters that describe and must satisfy the principles of dynamic similarity for a comparison of convection between a model and a full-scale room were determined. The main parameters were the Grashof and Prandtl numbers of the fluid and the aspect ratio of the room. Time exposure photographs were made of the tracer to reveal fluid motion. (Author)