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) : Brands, Joseph D.

PDF Url : ADA334357

Report Date : DEC 1997

Pagination or Media Count : 193

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.

Descriptors :   *TOXIC HAZARDS, *EXHAUST PLUMES, *ROCKET EXHAUST, *LAUNCHING SITES, AIR POLLUTION, TOXICITY, THESES, AIR FORCE FACILITIES, BOOSTER ROCKET ENGINES, SOLID PROPELLANT ROCKET ENGINES, ENTRAINMENT, LAUNCH VEHICLES, HYPERGOLIC FUELS.

Subject Categories : Combustion and Ignition
      Air Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE