Results 31 to 40 of about 81,813 (305)

Flame Enhancement and Quenching in Fluid Flows [PDF]

, 2002
We perform direct numerical simulations (DNS) of an advected scalar field which diffuses and reacts according to a nonlinear reaction law. The objective is to study how the bulk burning rate of the reaction is affected by an imposed flow.
Abel M, Abel M, Alexander Kiselev, Audoly B, Avellaneda M, Berestycki H, Bradley D, Chandrasekhar S, Drazin P G, Fife P C, Kanel Ya, Kolmogorov A N, Leonid Ryzhik, Natalia Vladimirova, Oleg Ruchayskiy, Pelcé P, Peter Constantin, Ronney P D, Taylor G I, Vladimirova N, Volpert A, Williams F A, Zeldovich Ya B   +22 more
core   +2 more sources

Numerical Study on the Intrinsic Instability of High-Temperature Premixed Flames under the Conditions of Constant Density and Constant Pressure in the Unburned Gas

Journal of Fluid Science and Technology, 2013
We studied numerically the intrinsic instability of high-temperature premixed flames, where the burned-gas temperature was constant, under the conditions of constant density and constant pressure in the unburned gas.
Satoshi KADOWAKI, Takuya OSHIMA, Hideaki KOBAYASHI   +2 more
doaj   +1 more source

An adaptive pseudo-spectral method for reaction diffusion problems [PDF]

, 1987
The spectral interpolation error was considered for both the Chebyshev pseudo-spectral and Galerkin approximations. A family of functionals I sub r (u), with the property that the maximum norm of the error is bounded by I sub r (u)/J sub r, where r is an
Bayliss, A., Gottlieb, D., Matkowsky, B. J., Minkoff, M.   +3 more
core   +2 more sources

Premixed Combustion of Kapok (ceiba pentandra) seed oil on Perforated Burner

International Journal of Renewable Energy Development, 2014
Availability of fossil fuels in the world decrease gradually due to excessive fuel exploitation. This situations push researcher to look for alternative fuels as a source of renewable energy, one of them is kapok (ceiba pentandra) seed oil.
I.K.G. Wirawan, I.N.G. Wardana, Rudy Soenoko, Slamet Wahyudi   +3 more
doaj   +1 more source

High hydrogen content syngas fuel burning in lean premixed spherical flames at elevated pressures: Effects of preferential diffusion [PDF]

, 2016
This study addresses the effects of preferential diffusion on flame structure and propagation of high hydrogen content (HHC) turbulent lean premixed hydrogen-carbon monoxide syngas flames at elevated pressures.
Luo, KH, Ranga Dinesh, KKJ, Shalaby, H, Thévenin, D, van Oijen, JA   +4 more
core   +1 more source

The Thermonuclear Explosion Of Chandrasekhar Mass White Dwarfs [PDF]

, 1996
The flame born in the deep interior of a white dwarf that becomes a Type Ia supernova is subject to several instabilities. We briefly review these instabilities and the corresponding flame acceleration. We discuss the conditions necessary for each of the
Blinnikov S. I., Blinnikov S. I., Bychkov V. V., Clavin P., Davies R. M., J. C. Niemeyer, Kerstein A., Kerstein A., Khokhlov A. M., Khokhlov A. M., Khokhlov A. M., Khokhlov A. M., Khokhlov A. M., Landau L. D., Markstein G. H., North G. L., S. E. Woosley, Zeldovich Ya. B.   +17 more
core   +3 more sources

The Effects of the Activation Energy on the Intrinsic Instability of Adiabatic and Non-Adiabatic Premixed Flames

Journal of Fluid Science and Technology, 2008
The effects of the activation energy on the intrinsic instability of adiabatic and non-adiabatic premixed flames were studied by two-dimensional unsteady calculations of reactive flows based on the compressible Navier-Stokes equation.
Amornrat KAEWPRADAP, Satoshi KADOWAKI
doaj   +1 more source

Characterisation of flame retarded recycled PET foams produced by batch foaming

Polymer Testing, 2023
CO2-assisted batch foaming was used to manufacture low-density (ρ = 200–350 kg/m3) microcellular foams from bottle-grade recycled poly(ethylene terephthalate) (rPET) in flame retarded form. The foamability of the PET regrind was enhanced using a reactive
Nóra Lukács, Ferenc Ronkay, Béla Molnár, Botond Marosfői, Katalin Bocz   +4 more
doaj   +1 more source

Effect of thermal expansion on the linear stability of planar premixed flames for a simple chain-branching model: The high activation energy asymptotic limit [PDF]

, 2008
The linear stability of freely propagating, adiabatic, planar premixed ames is investigated in the context of a simple chain-branching chemistry model consisting of a chain-branching reaction step and a completion reaction step.
G. J. Sharpe, Strehlow R. A., Williams F. A.   +2 more
core   +1 more source

Instability of lean H2-O2-CO2 premixed flames on a flat burner

Nihon Kikai Gakkai ronbunshu, 2015
Global warming and air pollution mainly caused by emissions of CO2 and NOx are serious problems. We focus on a lean H2-O2 premixed flame because H2-O2 premixed flame emits no CO2 and NOx.
Toshiyuki KATSUMI, Takahiro ENDO, Yuki NAKATANI, Satoshi KADOWAKI   +3 more
doaj   +1 more source