Air Monitoring Techniques for Space Shuttle Launches at Vandenberg Air Force Base PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Air Monitoring Techniques for Space Shuttle Launches at Vandenberg Air Force Base PDF full book. Access full book title Air Monitoring Techniques for Space Shuttle Launches at Vandenberg Air Force Base by Gerald D. Swoboda. Download full books in PDF and EPUB format.
Author: Gerald D. Swoboda
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Get Book Here
Book Description
Space Transportation System (STS) launches at Kennedy Space Center (KSC), Florida have produced a wide range of environmental phenomena. These phenomena have included far field hydrogen chloride (HC1) acid rainout and near field HC1 gas revolatilization. The U.s. Air Force and the National Aeronautics and Space Administration (NASA) have conducted detailed scientific field and laboratory studies to define the effects of exhaust effluents produced during Space Shuttle launches. Inferences can be drawn from the monitoring studies at KSC and applied to the first STS launch at Vandenberg AFB (VAFB). There are, however, significant differences in launch scenarios between KSC and VAFB that could alter or produce different environmental effects. These differences include terrain, meteorology, flame trench configuration, deluge water and vehicle configuration. These differences may produce unforeseen environmental effects during STS launches at VAFB and for this reason, a comprehensive monitoring program should be considered. This report recommends a monitoring program methodology which includes ground monitoring, aircraft monitoring and remote sensing for STS launches at VAFB.
Author: Gerald D. Swoboda
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Get Book Here
Book Description
Space Transportation System (STS) launches at Kennedy Space Center (KSC), Florida have produced a wide range of environmental phenomena. These phenomena have included far field hydrogen chloride (HC1) acid rainout and near field HC1 gas revolatilization. The U.s. Air Force and the National Aeronautics and Space Administration (NASA) have conducted detailed scientific field and laboratory studies to define the effects of exhaust effluents produced during Space Shuttle launches. Inferences can be drawn from the monitoring studies at KSC and applied to the first STS launch at Vandenberg AFB (VAFB). There are, however, significant differences in launch scenarios between KSC and VAFB that could alter or produce different environmental effects. These differences include terrain, meteorology, flame trench configuration, deluge water and vehicle configuration. These differences may produce unforeseen environmental effects during STS launches at VAFB and for this reason, a comprehensive monitoring program should be considered. This report recommends a monitoring program methodology which includes ground monitoring, aircraft monitoring and remote sensing for STS launches at VAFB.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 456
Get Book Here
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Francis A. Crowley
Publisher:
ISBN:
Category :
Languages : en
Pages : 71
Get Book Here
Book Description
The Payload Changeout Room and Administration Building vibro-acoustic environment is simulated for Shuttle launches at Vandenberg AFB using local responses and a source term founded on Kennedy Space Center launch pressures. Overpressure emanating from above the Launch Mount at VAFB is materially altered in form and level by site reverberations. Motion produced in simulations regularly approaches or exceeds velocity and acceleration thresholds cited for other launch support structures. Forecasts call for PCR roof displacements toward the PPR exceeding 2.0 cm for most launches. The expected maximum displacement after 5 launches is 3.5 cm. An exceedance of 5 cm can be anticipated over the facility life cycle (about 100 launches). Key words: Rocket plume acoustics; Space Transportation System Launch Environment; Vandenberg AFB; Vibro acoustics. (Author).
Author: Roger D. Thorpe
Publisher:
ISBN:
Category : Air quality monitoring stations
Languages : en
Pages : 62
Get Book Here
Book Description
Author: Michael Susko
Publisher:
ISBN:
Category : Aircraft exhaust emissions
Languages : en
Pages : 72
Get Book Here
Book Description
Author: Paul A. Schmalzer
Publisher:
ISBN:
Category : Atlas (Missile)
Languages : en
Pages : 126
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 92
Get Book Here
Book Description
Wind speeds at the launch complex may be a factor to be considered in ensuring safe and flawless shuttle launch. High wind speeds may lead to unacceptably large horizontal forces at vulnerable times in the launch process. Low wind speeds will reduce the capability of the atmospheric boundary layer to disperse residual HC acid vapor from the solid rocket boosters. In this analysis, we computed and presented wind-speed distributions for multiple-hr as well as 1-hr averaging periods for guidance in determining the probability that a given wind condition will persist beyond 1 hr. High wind speeds at tower level tend to arise from strong coupling of the low level flow to high speed flow aloft resulting from large pressure gradients on the synoptic-scale. Under these conditions, wind direction tends to be more uniform with height than under weak synoptic-scale forcing, so the tower level wind direction can usually be approximated from the conventional synoptic analysis or forecast maps. Low wind speeds at the launch site for brief or extended periods could lead to hazards resulting from the acid cloud lingering in the near vicinity. Even though the cloud may attain a stabilized height well above the surface, if it rains out, revolatilized acid vapor could lead to high HC vapor concentrations in the surrounding air. Since revolatilized HC vapor concentrations are inversely proportional to wind speed, extended periods of low wind speeds would result in high acid vapor densities for correspondingly long periods.
Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 250
Get Book Here
Book Description
Author: Michael Susko
Publisher:
ISBN:
Category :
Languages : en
Pages : 57
Get Book Here
Book Description
Author: H. E. Cramer
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
Get Book Here
Book Description
To assist in evaluating the environmental effects of material injected into the lower atmosphere during launches of the Space Transportation System (STS) at Vandenberg (VAFB), the U.S. Air Force (USAF) is implementing an improved and modified version of the REEDM computer code currently used to support STS launches at Kennedy Space Center (KSC). This paper describes the basic features of the REEDM program and outlines in detail the modifications and improvements being made to adapt this program for STS launches at VAFB. The modifications/improvements include a new model for predicting the fallout and surface deposition of acidic particles for use at both KSC and VAFB; development of turbulent dispersion coefficients appropriate for VAFB; incorporation of a mesoscale wind-field model for calculating the effects of the complex terrain at VAFB on the trajectories and dispersion of the STS exhaust clouds. An additional important task is the performance of an extensive environmental risk assessment for VAFB using VAFB rawinsonde data with the modified REEDM computer program.
