...Jaehyoung Jeon; Moongeun Hong; Yeoung-Min Han; Soo Yong Lee Gas-centered swirl coaxial injectors have become an important subject of study for staged combustion rocket engines with hydrocarbon fuels. While these injectors are employed successfully in rocket engines, it is very rare to find...

...A. Valera-Medina; N. Syred; P. Bowen; A. Crayford Swirl stabilized combustion is a technology which, for stationary combustion, consumes more than 70 to 80% of the world’s fossil fuels. There have been many reviews of this technology, but there are still many gaps in understanding. This paper...

..., and recorded temperature showed that high temperature erosion is the most obvious reason for thinning in these tubes. Therefore, two possible reasons for the non-uniform tube thinning (problems due to combustion and steam mal-distribution in the tubes) were explored. This paper presents simulations...

... at strategic locations within the flow field, which are determined by examining the CFD solution of a uniform grid. Three cases are examined, the backward-facing step, flow over an asymmetric transonic airfoil, and hydrogen combustion in a channel. Grid independent solutions are obtained for all three cases...

... combustor may comprise over 70% of the total air flow, the overall N O x emission levels were found to be more sensitive to mainstream air preheat than to jet stream air preheat. Email: jjdholdeman@aol.com 07 09 2006 02 05 2007 chemically reactive flow combustion combustion...

... a variety of measurements in a scaled down model of an industrial gas turbine combustor under unstable operation at atmospheric pressure. Measurements included dynamic pressure, CH chemiluminescence, and CO and NO x emissions. This study was focused on the effects of combustion...

... of the intake, which fall within the intervals for stable combustion of either early or late injection modes of operation of DISI engines [ Jackson et al., 1997, SAE Paper No. 970543 ]. The direct Simulation Monte Carlo (DSMC) approach embodied in an in-house CFD research code is used to simulate the discrete...

...J. Benajes; R. Payri; S. Molina; V. Soare The quality of the mixing process of fuel and air in a direct injection diesel engine relies heavily on the way the spray develops when injected into the combustion chamber. Among other factors, the spray development depends on the injection rate...

.... The use of counterflow also enhances three dimensionality, a feature that is expected to be beneficial under burning conditions. 24 02 2004 24 11 2004 25 01 2005 shear turbulence combustion chemically reactive flow flow control turbulent diffusion flow separation confined flow...

... ,” Combust. Flame 0010-2180 10.1016/S0010-2180(00)00178-4 , 123 ( 4 ), pp. 465 – 487 . Menon , S. , and Calhoon , W. H. , Jr. , 1996 , “ Subgrid Mixing and Molecular Transport Modeling in a Reacting Shear Layer ,” Proc. Combust. Inst. , 26 , pp. 59 – 66 . DesJardin , P. E...

... Division Sept. 16, 2002; revised manuscript received September 16, 2003. Associate Editor: W. W. Copenhaver. 16 September 2002 16 September 2003 19 02 2004 flow instability external flows jets gas turbines combustion laser Doppler anemometry anemometry flames fluctuations...

...P. Emery; F. Maroteaux; M. Sorine Gasoline direct injection (GDI) spark ignition engines may be able to run over a wide range of operating conditions. The GDI process allows combustion with lean mixtures which may lead to improved fuel economy and emissions relative to homogeneous spark ignition...

... informations in isothermal conditions, it would be useful to be able to predict the flow in the combustion case. When the fuel and oxidizer jets enter the combustion chamber, the jets mix with each other as well as with the surrounding recirculating fluid. The temperature of the jet rapidly increases...