Abstract In order to explore the engine surge when inlet distortion index and margin, relationship between parameter characteristics of research surge, strengthen safety monitoring assessment engine, this paper designed a kind certain type bench test system, unstable flow field vortex axis working parameters for analysis. paper, plug-plate generator is used induce circumferential static pressur...

The morphology of the joint surface is multi-scale, and it can be divided into first-order asperity (waviness) second-order (unevenness). At present, roughness characterization formula considers only contribution waviness unevenness components does not fully consider their mechanical contribution. same time, relationship between still unclear. Thus, considering needs to further studied. In this...