Development of a Versatile Conditioning Wind Tunnel for Evaporative Fate Studies
Abstract
This report documents the development of a conditioning wind tunnel that allows multiple test samples to be conditioned at identical environmental settings that are used in smaller vapor sampling wind tunnels. The conditioning of multiple samples, especially those involving persistent chemicals, allows for the efficient use of a limited number of instrumented vapor sampling tunnels. Up to nine samples can be sequentially and quickly cycled through the instrumented vapor wind tunnels for a relatively short period of time to take vapor samples. The development of the conditioning wind tunnel progress through several iterations, starting as a smaller test cell and ultimately ending as a more conventional wind tunnel design. The tunnel was fabricated and the boundary-layer profile in the test section was measured at several locations. Analysis of the boundary-layer indicated that the profiles were in good agreement with the stipulated operational wind profiles. Recommendations for possible future improvements are also provided. The conditioning wind tunnel's versatility allows multiple droplet experiments with minor modifications enabling determination of volatilization of tens of milligrams of chemicals from 20 x 10 cm surfaces.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2009
- Accession Number
- ADA511063
Entities
People
- Clayton S. Moury
- Daniel J. Weber
- Daniel Waysbort
- H. Dupont Durst
- James E. Danberg
Organizations
- Edgewood Chemical Biological Center