Results 121 to 130 of about 279 (180)
A Concise Review of Recent Advancements in Carbon Nanotubes for Aerospace Applications. [PDF]
Micromachines (Basel)Zecchi S +7 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Accuracies of laminar counterflow flame experiments
Combustion and Flame, 2015Abstract Counterflow configurations are useful for investigating the structures of premixed, non-premixed, and partially premixed flames. Ignition and extinction conditions also are readily measured in this configuration. There is a wide range of different possible designs of apparatus to be used in such measurements.
Ulrich Niemann +2 more
exaly +2 more sources
Steady and unsteady flame propagation in a premixed counterflow
Combustion Theory and Modelling, 2007In this paper we investigate numerically the influence of heat loss and strain rate on the edges of premixed flames in a two-dimensional counterflow. This work represents a continuation and extension of recent work on the topic. Both steady and non-steady edge behaviour is investigated for certain values of the parameters representing heat loss and ...
Thatcher, R. W., Al Sarairah, E.
exaly +2 more sources
The premixed flame in a counterflow
Combustion and Flame, 1982Abstract We examine a premixed flame located in a counterflow of fresh cold mixture and hot burnt gas, the latter at a temperature close to that of adiabatic deflagration. A constant density, high activation energy model is adopted, and the steady state response depends essentially on two parameters, the Lewis number, and the temperature of the ...
J. Buckmaster, D. Mikolaitis
openaire +1 more source
Counterflow heptane flame structure
Proceedings of the Combustion Institute, 2000Results are reported for thermocouple and gas-chromatographic measurements of profiles of temperature and of concentrations of C 7 H 16 , C 5 H 10 , C 4 H 8 , C 4 H 6 , C 3 H 6 , C 2 H 6 , C 2 H 4 , C 2 H 2 , CH 4 , CO, and CO 2 in two laminar counterflow n -heptane flames having measured flame temperature of 2100 K, at an oxidizerside potential-flow
S.C. Li, F.A. Williams
openaire +1 more source
Flame Synthesis of Carbon Nanotubes in a Rotating Counterflow
Journal of Nanoscience and Nanotechnology, 2009The synthesis of carbon nanotubes (CNTs) in rotating counterflow diffusion flames using nickel-nitrate coated or uncoated nickel substrates was investigated. A diffusion flame at high angular velocity (low strain rate) is stronger than a weak flame at low angular velocity (high strain rate) and produces more carbon sources because of the longer ...
Shuhn-Shyurng, Hou +2 more
openaire +2 more sources
Counterflow diffusion flames with unsteady strain rates
33rd Aerospace Sciences Meeting and Exhibit, 1995Abstract The counterflow diffusion flame subject to time-varying strain rates is studied analytically in order to assess the effect that unsteadiness caused by turbulent flows might have on laminar flamelets. The characteristic unsteady time considered is of the same order as the characteristic flame time, which is represented by the reciprocal of the ...
H. G. IM, J. K. BECHTOLD, C. K. LAW
openaire +1 more source
On Flammability Limits and Flame Shapes of Counterflow Premixed Flames
Combustion Science and Technology, 1986Abstract Flammability limits for methane-air and propane-air mixtures were measured using the counterflow type burner which consisted of a couple of converging-diverging nozzles made of quartz glass. As several types of flames other than the usual twin flames were obtained in this burner, a simple theoretical analysis on the shape and nature of the ...
M. KITANO, Y. OTSUKA
openaire +1 more source
Visualization of Counterflow Flames
1992Laminar counterflow flames have been used to study a variety of combustion problems, for example extinction conditions and chemical kinetic mechanisms with a review in Ref. [1], and to provide information for flamelet models of turbulent flames [2].
E. Mastorakos, A. M. K. P. Taylor
openaire +1 more source
Effect of Outer Edge Flame on Flame Extinction in Counterflow Diffusion Flames
Transactions of the Korean Society of Mechanical Engineers B, 2012The present study on nitrogen-diluted non-premixed counterflow flames with finite burner diameters experimentally investigates the important role of the outer edge flame in flame extinction. Flame stability diagrams mapping the flame extinction response of nitrogen-diluted non-premixed counterflow flames to varying global strain rates in terms of the ...
Yong-Ho Chung +5 more
openaire +1 more source