A virtual evaluation method for solid propellant secondary smoke characteristics based on plume field

Abstract

The invention discloses a virtual evaluation method for secondary smoke characteristic of a solid propellant based on a plume field. The method disclosed by the invention comprises the following steps of: I, setting and storing an initial parameter; II, calculating an energy characteristic parameter; III, calculating an engine plume field; and IV, calculating a secondary smoke characteristic value, invoking a pre-established secondary smoke relative humidity calculation model via a data processor, and calculating and acquiring secondary smoke relative humidity RHamb at each position on a spraying tube axis in the engine plume field after combusting the evaluated solid propellant by combining a calculation result of the engine plume field acquired in the step III. The method disclosed by the invention is simple in steps, reasonable in design, convenient to realize and good in using effect and can effectively overcome the defects of large investment of manpower and material resources, long period, great test amount and the like when the smoke signal performance of the solid propellant in the prior art is evaluated.

Description

technical field [0001] The invention belongs to the technical field of evaluation of smoke characteristics of solid propellants, in particular to a method for virtual evaluation of secondary smoke characteristics of solid propellants based on a plume field. Background technique [0002] With the development of mechanization and information technology, more and more modern weapon systems adopt automatic tracking, control and guidance methods such as radar and photoelectricity. Combat effectiveness of projectile weapon systems. But at the same time, the harmfulness of smoke and flames during the launching and carrying of missile weapons is becoming increasingly apparent, which has a great impact on the informatization, intelligence, and stealth performance of the weapon system, and has serious consequences for the rapid, precise strike, and stealth functions of the weapon system. It has caused serious adverse effects, and has even become the main technical bottleneck restrict...

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