Experimental data for the article: Swirler effects on combustion instabilities analyzed with measured FDFs, injector impedances and damping rates

This file contains the flame describing function data obtained in SICCA-Spray combustor at the EM2C laboratory with liquid heptane as fuel. The swirler used is called 716 and further details are available in the article “Swirler effects on combustion instabilities analyzed with measured FDFs, injector impedances and damping rates” Preethi Rajendram Soundararajan, Daniel Durox, Antoine Renaud, Guillaume Vignat, Sébastien Candel, Combustion and Flame, vol. 238, 2022.
The data is provided in the form of frequency, gain, phase, and relative velocity fluctuation levels and can be used to generate Figure 8 of the article.

本数据集包含在EM2C实验室的SICCA-Spray燃烧室中，以液态正庚烷为燃料采集得到的火焰描述函数（flame describing function）数据。所用旋流器（swirler）型号为716，更多详细信息可参阅论文《Swirler effects on combustion instabilities analyzed with measured FDFs, injector impedances and damping rates》，作者为Preethi Rajendram Soundararajan、Daniel Durox、Antoine Renaud、Guillaume Vignat、Sébastien Candel，发表于《Combustion and Flame》2022年第238卷。
本数据集以频率、增益、相位以及相对速度脉动幅值的形式提供，可用于复现该论文中的图8。