Browsing by Author "Neff, David E., author"
Now showing 1 - 18 of 18
Results Per Page
Sort Options
Item Open Access Analysis of vapor barrier experiments to evaluate their effectiveness as a means to mitigate HF concentrations: final report(Colorado State University. Libraries, 1988-07) Meroney, Robert N., author; Neff, David E., author; Shin, Seong-Hee, author; Steidle, Thomas C., author; Tan, Thomas Z., author; Wu, Gang, author; Fluid Mechanics and Wind Engineering Program, Department of Civil Engineering, Colorado State University, publisherAccidental releases of Hydrogen Fluoride (HF) can result in initially dense, highly reactive and corrosive gas clouds. These clouds will typically contain a mixture of gases, aerosols and droplets which can be transported significant distances before lower hazard levels of HF concentration are reached. Containment fences or vapor barriers have been proposed as a means to hold-up or delay cloud expansion, elevate the plume downwind of the barriers, and enhance cloud dilution. Previous related field and laboratory experiments have been analyzed to estimate the effectiveness of barrier devices. The experiments were examined to determine their relevance to Hydrogen Fluoride spill scenarios. Wind tunnel and field data were compared where possible to validate the laboratory experiments. Barrier influence on peak concentrations, cloud arrival time, peak concentration arrival time, and cloud departure time were determined. These data were used to develop entrainment models to incorporate into integral and depth averaged numerical models. The models were then run to examine barrier performance for a typical Hydrogen Fluoride spill for a wide range of vapor barrier heights, spill sizes, meteorological conditions and release configurations. Finally the results of the data analysis and numerical sensitivity study were interpreted and expressed in a form useful to evaluate the efficacy of vapor barrier mitigation devices.Item Open Access Downwind and lateral wake effects on wind turbine performance(Colorado State University. Libraries, 1988-10) Neff, David E., author; Meroney, Robert N., author; Fluid Mechanics and Wind Engineering Program, Department of Civil Engineering, Colorado State University, publisherItem Open Access Fluid modeling of exhaust gas dispersion from the Boston Edison 500 Atlantic Avenue building site, Ventilation Building No. 3, Central Artery/Third Harbor Tunnel project: atmospheric dispersion comparability testing documentation(Colorado State University. Libraries, 1995-07) Neff, David E., author; Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherItem Open Access Fluid modeling of exhaust gas dispersion from the Boston Edison 500 Atlantic Avenue building site, Ventilation Building No. 3, Central Artery/Third Harbor Tunnel project: final report(Colorado State University. Libraries, 1996-04) Neff, David E., author; Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherItem Open Access Fluid modeling of exhaust gas dispersion from the Boston-Edison ventilation site, Central Artery/Third Harbor Tunnel Project: final report (June 1988-December 1988)(Colorado State University. Libraries, 1989-03) Neff, David E., author; Tan, Thomas Z., author; Meroney, Robert N., author; Fluid Mechanics and Wind Engineering Program, Department of Civil Engineering, Colorado State University, publisherItem Open Access Fluid modeling of exhaust gas dispersion from the parcel 7 ventilation site, Central ArteryThird Harbor Tunnel Project: final report (June 1988-December 1988)(Colorado State University. Libraries, 1989) Neff, David E., author; Tan, Thomas Z., author; Meroney, Robert N., author; Fluid Mechanics and Wind Engineering Program, Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherItem Open Access LNG vapor barrier and obstacle evaluation: wind-tunnel simulation of 1987 Falcon spill series: final report, July 1987-February 1991(Colorado State University. Libraries, 1991-03) Shin, Seong-Hee, author; Meroney, Robert N., author; Neff, David E., author; Fluid Mechanics and Wind Engineering Program, Department of Civil Engineering, Colorado State University, publisherMeasurements of the behavior of simulated liquefied natural gas clouds dispersing over small-scale model placed in environmental wind tunnels permits evaluations of the fluid physics of dense cloud movement and dispersion in a controlled environments. A large data base on the interaction of simulated LNG plumes with the Falcon test configuration of vapor barrier fences and vortex generators was obtained. The purpose of the reported test program is to provide post-field-spill wind tunnel experiments to augment the LNG Vapor Fence Field Program data obtained during the Falcon Test Series in 1987. The goal of the program is to determine the probable response of a dense LNG Vapor cloud to vortex inducer obstacles and fences, examine the sensitivity of results to various scaling arguments which might augment limit, or extend the value of the field and wind-tunnel tests, and identify important details of the spill behavior which were not predicted during the pretest planning phase.Item Open Access Physical and numerical modeling to evaluate ASD exhaust design for acceptable re-entrainment and dispersion in houses: final report(Colorado State University. Libraries, 1994-03) Neff, David E., author; Meroney, Robert N., author; El-Badry, Hesham, author; Department of Civil Engineering, Colorado State University, publisherItem Open Access Plume behavior from tall stacks at Savannah River Laboratory, Aiken, South Carolina(Colorado State University. Libraries, 1987-07) Neff, David E., author; Meroney, Robert N., author; Fluid Mechanics and Wind Engineering Program, Department of Civil Engineering, Colorado State University, publisherItem Open Access Wind engineering study of Georgetown Factory Stores: final report (February 1995)(Colorado State University. Libraries, 1995-02) Neff, David E., author; Fluid Mechanics and Wind Engineering Program, Colorado State University, publisherItem Open Access Wind tunnel good engineering stack height study of the FCC COB stack at the Billings Exxon Refinery: atmospheric dispersion comparability testing documentation(Colorado State University. Libraries, 1995-07) Neff, David E., author; Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherItem Open Access Wind tunnel good engineering stack height study of the FCC COB stack at the Billings Exxon Refinery: final report(Colorado State University. Libraries, 1996-02) Neff, David E., author; Petersen, Ronald L., author; Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherItem Open Access Wind tunnel study of air pollutant dispersion on Guam: atmospheric dispersion comparability testing documentation(Colorado State University. Libraries, 1995-07) Neff, David E., author; Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherItem Open Access Wind tunnel study of air pollutant dispersion on Guam: final report(Colorado State University. Libraries, 1995-09) Neff, David E., author; Meroney, Robert N., author; Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherItem Open Access Wind tunnel study of ventilation system entrainment of building exhausts at Coolbaugh Hall, Colorado School of Mines campus: final report (September 9, 1993)(Colorado State University. Libraries, 1993-09) Neff, David E., author; El-Badry, Hesham, author; Fluid Mechanics and Wind Engineering Program, Colorado State University, publisherItem Open Access Wind-tunnel modeling of hill and vegetation influence on wind power availability. Task 3. Kibby Mountain, Maine site study(Colorado State University. Libraries, 1993-07-16) Neff, David E., author; Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherItem Open Access Wind-tunnel modelling of hill and vegetation influence on wind power availability. Task 2. Winds over two dimensional hills(Colorado State University. Libraries, 1993-03) Neff, David E., author; Meroney, Robert N., author; Fluid Dynamics and Diffusion Laboratory, Department of Civil Engineering, Colorado State University, publisherItem Open Access Wind-tunnel studies of certain meteorological tower siting characteristics at the James A. Fitzpatrick Nuclear Power Station(Colorado State University. Libraries, 1988-02) Meroney, Robert N., author; Ewald, Ronald L., author; Shin, Seong Hee, author; Neff, David E., author; Fluid Mechanics and Wind Engineering Program, Department of Civil Engineering, Colorado State University, publisher