Tomographic PIV measurements in a turbulent lifted jet flame

• Published in: Experiments in fluids Vol. 54; no. 12; pp. 1 - 5
• Main Authors: Weinkauff, J., Michaelis, D., Dreizler, A., Böhm, B.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2013; Springer
• Subjects: Applied sciences; Combustion; Combustion of gaseous fuels; Combustion. Flame; Energy; Energy. Thermal use of fuels; Engineering; Engineering Fluid Dynamics; Engineering Thermodynamics; Exact sciences and technology; Fluid dynamics; Fluid flow; Fluid- and Aerodynamics; Heat and Mass Transfer; Jet flames; Letter; Reconstruction; Theoretical studies. Data and constants. Metering; Three dimensional; Turbulence; Turbulent flow; Multiplicative Algebraic Reconstruction Technique; Tomographic Particle Image Velocimetry; Particle Image Velocimetry Data; Turbulent Flame; Particle Image Velocimetry; Turbulent flame; Methane; Turbulent flow; Three dimensional flow; Diffusion flame; Test facility; Tomography; Particle image velocimetry; Calibration; Experimental study
• ISSN: 0723-4864; 1432-1114
• DOI: 10.1007/s00348-013-1624-1

Measurements of instantaneous volumetric flow fields are required for an improved understanding of turbulent flames. In non-reacting flows, tomographic particle image velocimetry (TPIV) is an established method for three-dimensional (3D) flow measurements. In flames, the reconstruction of the particles location becomes challenging due to a locally varying index of refraction causing beam-steering. This work presents TPIV measurements within a turbulent lifted non-premixed methane jet flame. Solid seeding particles were used to provide the 3D flow field in the vicinity of the flame base, including unburned and burned regions. Four cameras were arranged in a horizontal plane around the jet flame. Following an iterative volumetric self-calibration procedure, the remaining disparity caused by the flame was less than 0.2 pixels. Comparisons with conventional two-component PIV in terms of mean and rms values provided additional confidence in the TPIV measurements.