Experimental and Numerical Investigation of the Non-Reacting Flow in a High-Fidelity Heavy-Duty Gas Turbine DLN Combustor
نویسندگان
چکیده
A dry, low-NOx (DLN) combustor for a heavy-duty gas turbine using lean premixed technology was studied. high-fidelity test model built the experimental study particle image velocimetry (PIV). The non-reacting flow in DLN combustion chamber investigated experimentally and numerically. numerical results are good agreement with data. show that recirculation zones were formed downstream of each swirl nozzle pattern section self-similar under different working conditions. For two adjacent nozzles opposite swirling directions, entrainment phenomenon present between their flows. flows gradually mixed other obtained higher speed. If had same direction, then mixing out not present, resulting separate zones. interaction can enhance turbulent fluctuation inside chamber. Based on analysis kinetic energy (TKE) distribution nozzle, it be found coupling stronger counterclockwise surrounding nozzles.
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ژورنال
عنوان ژورنال: Energies
سال: 2022
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en15249551