Temperature Response of an Acoustically Forced Turbulent Lean Premixed Flame: A Quantitative Experimental Determination

  title={Temperature Response of an Acoustically Forced Turbulent Lean Premixed Flame: A Quantitative Experimental Determination},
  author={Robin S. M. Chrystie and Iain Stewart Burns and Clemens F. Kaminski},
  journal={Combustion Science and Technology},
  pages={180 - 199}
Temperature measurements have been taken on an acoustically forced lean premixed turbulent bluff-body stabilized flame. The burner used in this study is a test-bed to investigate thermoacoustic instability in gas-turbine engines at the University of Cambridge. Numerous experiments have been performed on the burner, one of which used two-line OH planar laser induced fluorescence to measure temperature. Here, we employ vibrational coherent anti-Stokes Raman scattering (CARS) of nitrogen as an… 

Response to Acoustic Forcing of Laminar Coflow Jet Diffusion Flames

Toward the goal of understanding and controlling instability in combustion systems, we present a fundamental characterization of the interaction of the buoyancy-induced instability in flickering

Propene concentration sensing for combustion gases using quantum-cascade laser absorption near 11 μm

We report on a strategy to measure, in situ, the concentration of propene (C3H6) in combustion gases using laser absorption spectroscopy. Pyrolysis of n-butane was conducted in a shock tube, in which

SiO multi-line laser-induced fluorescence for quantitative temperature imaging in flame-synthesis of nanoparticles

Silicon monoxide (SiO) is an intermediate in the gas-phase synthesis of SiO2 nanoparticles and coatings. We demonstrate a method for in situ imaging the gas-phase temperature via multi-line

Ultra-fast and calibration-free temperature sensing in the intrapulse mode.

An uncluttered, spectrally-pure Voigt profile fitting with accompanying peak SNRs of 150, resulting in a typical temperature precision of 0.9% (1σ) at an effective time-resolution of 1.0 MHz is demonstrated.

Single camera 20  kHz two-color formaldehyde PLIF thermometry using a dual-wavelength-switching burst mode laser.

A two-color formaldehyde planar laser induced fluorescence spectroscopy thermometry scheme using the third-harmonic of injection-seeded Nd:YAG lasers can greatly reduce experimental complexity and improve the understanding of practical combustors.

Calibration-Free and Ultra-Fast Sensing of Temperature and Species in the Intrapulse Mode

A new approach to measuring temperature, in which calibration-free and high timeresolution character are simultaneously achieved, is exploited through the use of intrapulse spectroscopy. The method



Temperature response of turbulent premixed flames to inlet velocity oscillations

Flame–turbulence interactions are at the heart of modern combustion research as they have a major influence on efficiency, stability of operation and pollutant emissions. The problem remains a

Heat release rate correlation and combustion noise in premixed flames

The sound emission from open turbulent flames is dictated by the two-point spatial correlation of the rate of change of the fluctuating heat release rate. This correlation in premixed flames can be

A flat flame burner for the calibration of laser thermometry techniques

The design and experimental characterization of a burner is described, which has favourable characteristics for the accurate calibration of a range of optical thermometry techniques. The burner

Identification of spatial averaging effects in vibrational CARS spectra

Accurate temperature measurements with the coherent anti-Stokes Raman scattering (CARS) technique are difficult to perform when temperature gradients occur within the measurement volume. Very often