Effects of ambient pressure on flame spread speed along a fuel droplet array at microgravity
نویسندگان
چکیده
منابع مشابه
Creeping Flame Spread along Fuel Cylinders in Forced and Natural Flows and Microgravity
MICHAEL A. DELICHATSIOS,1 ROBERT A. ALTENKIRCH,2 MATTHEW F. BUNDY,3 SUBRATA BHATTACHARJEE,4 LIN TANG2 and KURT SACKSTEDER5 Fire Science and Technology Laboratory CSIRO/DBCE Fire Safety Engineering Division North Ryde, NSW Australia 1670 NSF Engineering Research Center Department of Mechanical Engineering Mississippi State University Mississippi State, MS 39762, USA National Institute of Standar...
متن کاملFlame Spread along Free Edges of Thermally Thin Samples in Microgravity
The effects of imposed flow velocity on flame spread along open edges of a thermally thin cellulosic sample in microgravity were studied experimentally and theoretically. In this study, the sample was ignited locally at the middle of the 4 cm wide sample, and subsequent flame spread reached both open edges of the sample along the direction of the flow. The following flame behaviors were observe...
متن کاملFlame spread along a fuel rod in the absence of gravity
An analysis is carried out of the steady spread of a flame with infinitely fast kinetics over a thermally thin solid rod in the absence of gravity. Due to the radial convergence on the solid surface of the heat flux heating and vaporizing the fuel, the spread rate is found to be higher than for a flame spreading over a slab, and the region of the gas around the flame which is affected by molecu...
متن کاملEffects of Finite Sample Width on Transition and Flame Spread in Microgravity
In most microgravity studies of flame spread, the flame is assumed to be two-dimensional, and twodimensional models are used to aid data interpretation. However, since limited space is available in microgravity facilities, the flames are limited in size. It is important, therefore, to investigate the significance of three-dimensional effects. Three-dimensional and two-dimensional simulations of...
متن کاملMicrogravity opposed-flow flame spread in polyvinyl chloride tubes
The effects of gravity on opposed-flow flame spread in a confined geometry were investigated experimentally in the 2.2-s drop tower at the NASA Glenn Research Center. Pure oxygen flowed through samples of 0.64-cminner-diameter polyvinyl chloride (PVC) tubing held either horizontally or vertically in a combustion chamber filled with nitrogen. The sample was ignited in normal gravity with a hot w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Transactions of the JSME (in Japanese)
سال: 2017
ISSN: 2187-9761
DOI: 10.1299/transjsme.17-00352