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We present an estimate of the aerodynamic damping that affects the along-wind response of an isolated tall building in suburban terrain. The evaluation uses measurements of the external pressures on the windward and leeward faces under wind normal to a
We summarize results of ongoing research at the National Institute of Standards and Technology into the development of a new generation of standard provisions for wind loading that uses aerodynamic and climatological databases to improve significantly the
Mark E. Palmer, M Burns, T L. Teague, Mary Turton, Rurik Turton
The AEX XML Schema Reference Guide summarizes the design principles and the structures of the AEX (Automating Equipment Information eXchange) XML schemas, guidance for making schema extensions and usage guidance for those who wish to deploy the AEX schemas
There are many types of sensor devices available in today s market with many still in development. These devices send signals representing the detection of entities such as temperature and smoke. With the availability of sensor devices monitoring various
In recent years, increasing interest has been shown in developing and designing slim floor systems in steel-framed buildings. This paper describes the results of a furnace test conducted on two full-scale composite steel frames with slim floor slab
Particle image velocimetry (PIV) measurements in polydisperse sprays have been investigated using Monte Carlo simulations. The objective of the study was to determine how using droplets with a wide size distribution for the seed particles in PIV
The analysis presented in this report was conducted for Benchmark Exercise # 2, Part II in the International Collaborative Fire Model Project (ICFMP). The analysis was conducted with CFAST Version 3.16, a zone model, and FDS Version 2, a computational
It has long been observed that porous materials undergoing a change in specific surface energy also undergo a volumetric strain in the direction to minimize the change in total surface energy. In the case of an increase in specific surface energy, this
The fire-induced collapse of the World Trade Center (WTC) buildings 1, 2, and 7 on 11 September 2001 demonstrated the need for engineering methods to predict the structural fire performance of buildings when subjected to arbitrary design fires and to
The BEES (Building for Environmental and Economic Sustainability) version 3.0 software implements a rational, systematic technique for selecting environmentally-friendly, cost-effective building products. The technique is based on consensus standards and
The Fire Dynamics Simulation (FDS) research program at the National Institute of Standards and Technology (NIST) has produced software that simulates fire spread and the response of a given sprinkler system. At the request of warehouse property owners, the
Star R. Burgess, Kathleen C. Whisner, Glenn P. Forney, Paul A. Reneke
Welcome to BFRL Publications, 2001. These two CD-ROMs contain publications produced by BFRL staff, publications resulting from contracts or grants with BFRL and publications contained in proceedings from BFRL sponsored conferences or workshops. The Volume
This paper develops and compares a new method for calculating the local mean radiant temperature to experimental data and the classical method described by American Society of Heating, Refrigerating, and Air-Conditioning Engineers (1997). The new method
A method for estimating the free energy of mixing CNTs with polymers is presented. The formation of the nanocomposite is analyzed in terms of a simple path in which the nanotubes are exfoliated from a bundle and dispersed in a distorted polymer with
This report is an analysis of the potential of tunable laser diode absorption spectroscopy (TDLAS) for recording carbon monoxide (CO) concentrations in hydrogen fuel cell environments characteristic of those present during reforming of organic fuels
This chapter is aimed at illustrating contemporary Computational Fluid Dynamics (CFD) capabilities for compartment fire applications. We choose to use the Fire Dynamics Simulator (FDS) for illustration purposes. FDS is developed by the National Institute
Jason D. Averill, C Meneveau, H S. Kang, F Charlette, O Knio, D Veynante
This paper discusses three interrelated aspects of modeling scalar transport, mixing and combustion, in the context of large-eddy simulation (LES). In terms of passice scalar modeling, we find deom heated wake measurements that whereas the kinetic energy
This chapter introduces the various construction automation concepts that have been developed over the past few decades and presents examples of construction robots that are in current use (as of 2006) and/or in various stages of research and development.
The concentrations of certain gases generated during fire suppression were determined as part of the evaluation of the automatic fire extinguishing system for the Advanced Amphibious Assault Vehicle. The measurements were performed in a test facility
There is a growing awareness of the benefits that could accrue from improving the technologies used by the Nation s $995 billion/year building and construction industry. Some possibilities for improvement in the performance of construction materials
Continuous monitors were employed for one year in an occupied townhouse to measure ultrafine, fine and coarse particles, air change rates, wind speed and direction, temperature and relative humidity. A main objective was to document long-term variation in