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Numerical Investigation of the Magnus Effect of a Generic Projectile at Mach 3 up to 90° Angle of Attack

机译:马赫3多达90°攻角逐射射孔射弹的数值研究

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The subject of the present work is the investigation of the Magnus effect in the supersonic flow regime by means of 3-D Reynolds-Averaged Navier-Stokes simulations on a generic 6.37 diameter long tangential-ogive-cylinder type projectile especially for high angles of attack. The Mach number is 2.98 and the Reynolds number based on the model length is 1.09 × 107. The Magnus side force shows a nonlinear increase with the angle of attack and thus with the cross-flow Mach number before reaching a maximum value. After a slight decrease, a plateau at 10° to 30° is developed, followed by a distinct decrease of the side force for even higher angles of attack. Using numerical simulations reveals the relationship between side force and angle of attack which leads to the limiting case of a rotating cylinder in cross-flow at 90° angle of attack.
机译:本作本作的主题是通过三维雷诺平均型Navier-Stokes模拟对超音流制度的Magnus效应进行调查,在通用的6.37直径的长切线 - 圆柱型射弹上射弹,特别适用于高角度。 Mach编号是2.98,基于模型长度的雷诺数为1.09×107. Magnus侧力显示出与攻角的非线性增加,因此在达到最大值之前具有横流机数。在轻微减少之后,开发了10°至30°的平台,然后在甚至更高的攻击角度下明显降低。使用数值模拟显示侧向力和攻角之间的关系,这导致旋转圆柱的限制壳体在90°迎角的横流中。

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