解决方案

强湍流中后向台阶稳定贫燃预混火焰热-声不稳定性可视化

Low-frequency combustion instabilities were studied experimentally in a model lean-premixed stepped
combustor. The PLIF technique was used to characterize the flame structure. The PIV technique, associated with
high-speed visualization of the OH* radical chemiluminescences emission, allowed to investigate the flow field
during the quasi-periodic unsteady flashback when the flame lifted from the edge of the step and moved periodically
in and out of the premixing duct. Results strongly suggest that impact of acoustic waves on the flame structure
首ld be taken into account when applying LES approach to industrial gas turbines. 德国LaVision PIV/PLIF粒子成像测速场仪 Imager SX PIV相机 用于粒子成像测速(PIV)的荧光示踪粒子

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