... stably with up to 80 vol. % H 2 in the fuel. 27 04 2011 27 05 2011 25 01 2012 25 01 2012 combustion gas turbines hydrogen ignition velocity measurement autoignition hydrogen reheat combustion concept high-speed imaging The demand for reduced CO 2...

.... The correction method uses a statistical strain rate model to account for the turbulence influence. The strain rate model is evaluated with time-resolved velocity measurements of the turbulent flow. Additionally, one-dimensional simulations of strained counterflow flames are performed to consider the nonlinear...

... turbines laminar flow length measurement pressure velocity measurement The laminar premixed flame speed is a fundamental physical property of a combustible mixture related to mixture composition, stoichiometry, temperature, and pressure ( 1 ). For gas turbine combustion systems, the laminar...

... amplitude would lift the flame because the flow field would be dramatically modified. 10 08 2009 20 04 2010 20 08 2010 20 08 2010 Doppler measurement flames jets laser velocimeters Mie scattering velocity measurement vortices wakes reacting swirling wake acoustic...

... of the Batchelor length scale can be made. The highly resolved scalar spectra are also used to evaluate the turbulent kinetic energy and dissipation spectra derived from the PIV velocity measurements. The effects of averaging, which are inherent in the PIV technique, are also discussed. The project is motivated...

... 03 2010 combustion flames flow instability flow simulation flow visualisation turbulence velocity measurement large eddy simulation bluff-body nonpremixed combustion Flows over a bluff-body is a common scene in many engineering applications such as gas turbine combustion...

... to see that close to the wall, the average X -velocities measured were actually negative. This denotes a region of swirling flow where the spray actually curves back in on itself close to the boundary layer. Once again, the highest X rms values are found at the core of the spray as was true...

..., for example, emissions or drivability. Information on the real torque produced is very much useful in order to check if the control action gave the desired result. accelerometers combustion diesel engines mountings power transmission (mechanical) torque torque control torsion velocity...

... voltage of a constant current spark and the freestream velocity if the velocity falls within certain limits. The engine tests revealed a great deal of cycle-to-cycle variation in the in-cylinder velocity measurements. Instances where the spark restrikes occur during the cycle must also be recognized...

... in the nozzle vicinity and a dominant external recirculation zone. The examination of the probability density function of the velocity measurements was also found to be a very useful tool in terms of the analysis of the turbulence structure of the flow. The bimodal distribution in the shear layer between...

... (LDV) for velocity measurements, OH * chemiluminescence yielding information about the heat release and pointwise laser Raman scattering for the determination of joint probability density functions (PDFs) of the major species concentrations, temperature, and mixture fraction. Each of these techniques...

... turbines vortices velocity measurement flow separation blades exhaust systems exhaust hood low-pressure steam turbine PIV The exhaust hood of a low-pressure steam turbine transforms the kinetic energy to potential energy and guides the flow from the last stage blade (LSB...

... in close agreement with PIV measurements. 24 02 2004 16 07 2005 turbulence internal combustion engines heat transfer velocity measurement combustion mass transfer velocimeters flow measurement Combustion chambers exhibiting squish flow are advantageous for spark-ignited...

... combustion instabilities were studied by a variety of phase-resolved laser-based diagnostic techniques, locked to the frequency of the dominant pressure oscillation. Measurement techniques used were LDV for velocity measurements, planar laser-induced fluorescence for imaging of CH and OH radicals, and laser...

...Paul O. Hedman; Thomas H. Fletcher; Daniel V. Flores; Stewart G. Graham; Jason K. Haslam; Robert L. Murray; G. Wayne Timothy Instantaneous planar laser induced fluorescence (PLIF) images of OH, simultaneous axial/radial and axial/tangential velocity measurements with an LDA (laser Doppler...

..., Re ϕ , between 4 × 10 5 and 3.2 × 10 6 . Velocity measurements inside the rotating cavity were made using laser Doppler anemometry, and temperatures and heat flux measurements on the heated disk were made using thermocouples and fluxmeters. The velocity measurements were consistent with a three...

... for the misfire detection and torque estimation in internal combustion engines is due to the positive results obtained using different approaches based on this signal, 1 2 3 4 5 6 7 . automotive electronics internal combustion engines fault diagnosis combustion torque velocity measurement...

... received by the ASME Headquarters, November 15, 2000. Associate Editor: D. Assanis. 06 June 2000 15 November 2000 flames combustion gas mixtures chemically reactive flow velocity measurement flow measurement turbulence modelling Accurate turbulent flame speed models...

.... Associate Editor: D. Assanis. 15 June 2000 23 June 2000 combustion gas mixtures chemically reactive flow laminar flow velocity measurement flow simulation temperature distribution high-pressure effects high-temperature effects modelling The laminar burning velocity...

... by the ASME Headquarters June 8, 2000. Technical Editor: D. Assanis. 02 March 2000 08 June 2000 internal combustion engines turbulence laser Doppler anemometry flow measurement velocity measurement The study of gas motion within the engine cylinder has received continuous...