The flow field visualization about the sections of double delta-wing by laser sheet technology

The purpose of flow visualization research of sections in double delta wing is to uncover the mechanism of vortex interference and structure,from this research,we can control the vortex and provide lasis for constructing numerical model. In this paper, the laser sheet technology is used to research the flow visualization of sections of double delta wing ,and some important results are introduced. From these results,we can see that two vortexes change to one vortex because the strength of vortex position relative to leading-edge is more intensity than that of vortex position relative to trailing-edge. Some vortical images are achieved in this test. These research results are very important for double delta wing flow research and valuable to construct the numerical model.