Simultaneous three-dimensional measurement of temperature and velocity fields in swirling combustion

Bin Zhang; Yi Su; Yifeng Chen; Chunjie Sui

doi:10.1117/12.2601303

9 October 2021 Simultaneous three-dimensional measurement of temperature and velocity fields in swirling combustion

Bin Zhang, Yi Su, Yifeng Chen, Chunjie Sui

Proceedings Volume 11902, Real-time Photonic Measurements, Data Management, and Processing VI; 119020X (2021) https://doi.org/10.1117/12.2601303
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Abstract

Simultaneous measurement and visualisation of multi-parameters are crucial in understanding and characterising complex combustion. A measurement technique coupled with deflection tomography and particle image velocimetry was proposed to obtain three-dimensional temperature and velocity fields of swirling combustion. A combustion system was developed to generate a non-premixed swirling flame. Moiré patterns in four view angles and tracer particle images illuminated by volume light source were captured simultaneously using a hybrid measurement system. Three-dimensional temperature and velocity fields were quantitatively reconstructed. The characteristics of swirling combustion were analysed on the bases of visualisations of temperature distribution, velocity distribution, streamlines. In each cross-section with varying heights from the nozzle, the high velocity and high temperature areas showed similar closed or semi-closed annular structure. In the central longitudinal section, the V-shaped high temperature and high velocity regions showed the swirling structure of combustion flow field. The high temperature area did not coincide with the high velocity area but was located relatively downstream. Additionally, the high velocity area was in the periphery of the high temperature area.

Citation Download Citation

Bin Zhang, Yi Su, Yifeng Chen, and Chunjie Sui "Simultaneous three-dimensional measurement of temperature and velocity fields in swirling combustion", Proc. SPIE 11902, Real-time Photonic Measurements, Data Management, and Processing VI, 119020X (9 October 2021); https://doi.org/10.1117/12.2601303

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KEYWORDS

Combustion

Visualization

Tomography

Temperature metrology

Velocity measurements

3D metrology

Imaging systems

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