Numerical Simulations of Aero-Optical Distortions Around Various Turret Geometries
U.S. Air Force Academy USAF Academy United States
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At compressible flow speeds, the flow around blunt objects such as optical turrets creates time- and spatially-varying density fields. These inhomogeneous density fields mean that an inhomogeneous index-of-refraction field exists around the optical-turret. As a result, as light traverses through this field, an otherwise collimated wavefront becomes distorted. these distortions reduce the far field irradiance that can be delivered on a target.