Investigating and evaluating the influence of drag ring diameter on the range of an ungovernable flying device in standard conditions
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https://doi.org/10.54939/1859-1043.j.mst.78.2022.159-165Keywords:
Flying device; CFD; Drag ring.Abstract
The article builds a CFD simulation model to calculate the aerodynamic characteristics of the ungovernable flying device, then determine the aerodynamic functions corresponding to different values of the diameter of drag rings. With the received aerodynamic functions, the article solved the rocket's equation motion in the firing plane, thereby allowing to evaluate the influence of drag ring diameter on the firing range of the rocket. The accuracy of the calculation results from the motion equation is evaluated by comparing with the standard values in the artillery firing table about the range corresponding to the diameters of drag rings.
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