Accession Number:

ADA334357

Title:

An Investigation of Plume Rise from Titan IV Rocket Launches

Descriptive Note:

Master's thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH

Personal Author(s):

Report Date:

1997-12-01

Pagination or Media Count:

193.0

Abstract:

Space launches at Cape Canaveral Air Station CCAS and Vandenberg Air Force Base vAFB produce exhaust ground clouds from the solid rocket boosters and liquid hypergolic fuels containing several toxic substances. In order to estimate the health effects that would be imposed upon the public by scheduled launches, range safety officials rely on the Rocket Exhaust Effluent Diffusion Model to predict ground level concentrations of these substances. A drawback to the REEDM is its underprediction of the initial ground clouds stabilization height. This underprediction causes an overprediction of the ground level toxic substance concentrations. This thesis focused on increasing the accuracy of the clouds stabilization height. Therefore, a model was developed incorporating conservation principles of volume, momentum, and buoyancy to predict stabilization height values. As part of the model a predictive function for the coefficient of entrainment was developed based on meteorological conditions. This rate of entrainment is a critical factor in accurately predicting the rise behavior of ground exhaust clouds.

Subject Categories:

  • Combustion and Ignition
  • Air Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE