Low speed and high angle of attack are problems that must be faced in vertical launching missiles. A natural asymmetric vortex phenomenon occurs at a low speed and high angle of attack of a slender body. In this paper. the Detached Eddy Simulation (DES) method is adopted to simulate the asymmetric flow of a slender body at a high angle of attack. https://www.roneverhart.com/Western-Digital-Re-WD6001FSYZ-6TB-7-2K-RPM-SATA-6Gb-s-128MB-3-5-Hard-Drive/