5 papers
Effects of Soret diffusion on the intrinsic instability of premixed hydrogen/air flames
Qizhe Wen, Yan Wang, Linlin Yang +4
Hydrogen flames exhibit multiple intrinsic instabilities. The low molar masses of H and H2 lead to significant Soret diffusion near the flame front; however, its influence on hydro…
Cavity-Stabilized Rotating Flames in a Circular Hele-Shaw Burner
Xiangyu Nie, Shengkai Wang
We report direct experimental observations of self-organized rotating flames of premixed CH4 and air in an open circular Hele-Shaw burner equipped with an annulus cavity flame hold…
Spatiotemporally Resolved Multi-Scalar Measurements of Methane Tulip Flames in a Square Channel
Zeyu Yan, Shengkai Wang
Understanding the propagation dynamics of premixed flames in confined spaces is important for fire safety in gas pipelines and for optimizing modern internal combustion engines. In…
Effects of Nozzle Roughness on the Streamwise Streaks in Underexpanded Jets -- An Experimental Study
Haohan Gong, Shengkai Wang
The present study investigated the formation of streamwise streaks in underexpanded jets from round sonic nozzles, based on direct experimental observation using high-speed schlier…
Effects of gravity on lean hydrogen/air flame instability: From linear scaling law to nonlinear morphology evolution
Qizhe Wen, Yan Wang, Linlin Yang +4
The instability characteristics of lean hydrogen/air flames have attracted considerable research attention, yet the effect of gravity remains insufficiently understood. In this stu…