Lompoc Valley Diffusion Experiment analysis - Mt. Iron comparison and two zone convective scaling model
By: C.E. Skupniewicz, R.F. Kamada, and S.A. Drake
Contributors: Kamada, Ray; Drake, S. A.; Naval Postgraduate School (U.S.). Dept. of Physics
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1992
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 110
Subjects: Diffusion; Air flow
Other titles: NPS-PH-92-004.
Description: LVDE(Lompoc Valley Diffusion Experiment) was conducted Aug 1989 to assess the      potential risk of gaseous releases from the Hypergolic Stockpile and Storage Facility at      Vandenberg AFB. Results of the LVDE are compared to the predictive equations of the      Mt. Iron Diffusion Tests, conducted at Vandenberg in the 1960's. The Mt. Iron equation      parameterizes diffusion with on-base meteorological tower input data. Regression      techniques similar to those of Mt. Iron are used in this comparison, resulting in LVDE      equations which use the same meteorological data as input. Instantaneous and time      averaged centerline concentrations, in both flat and complex terrain are analyzed. For all      cases LVDE concentrations are shown to decrease with range less rapidly than the Mt.      Iron equation predicts. We suggest that this bias is due to gravitational and/or scavenging      losses of the tracer material used in Mt. Iron. A 'two-zone' convective scaling equation is      developed which diffuses the plume differently in cloud covered and clear sky portions of      the domain. The method is shown to be superior to homogeneous convective scaling      equations, and comparable to a statistical approach based on the plume measurements.      While the method works for maximum concentration predictions, it fails for plume width      and crosswind integrated concentration for X > 6.
Notes: Title from cover.

"NPS-PH-92-004."

"January 1992."

"Technical report."

AD A244 382.

Includes bibliographical references (p. 109-110)

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