Evaluation of an Add-On Muzzle Exhaust Flow Manipulator for Noise Suppression on Large Caliber Guns. Phase 1
Final rept. 9 Jul 1987-9 Jan 1988
HOKENSON CO LOS ANGELES CA
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Direct numerical simulations of gun muzzle blast flowfields, with and without a simple silencer attached to the muzzle, were carried out utilizing the full equations of motion. These computations indicated that the silencer had a significant effect upon the amplitude and temporal structure of the induced sound pressure field. As a result, the feasibility of optimizing such silencer configurations and using them on various caliber guns has been demonstrated. In addition to mitigating the gun noise, this device is attractive based on its size, weight, cost, complexity and reliability. An extensive series of field tests and supportive numerical simulations is required to provide the Army with the required optimal designs. Keywords Silencers and mufflers.