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A Novel Method Of Aerosol Control And Application Technology Based On Coherent Acoustic Wave Disturbance

Posted on:2019-07-26Degree:MasterType:Thesis
Country:ChinaCandidate:Q GaoFull Text:PDF
GTID:2382330572456365Subject:Radio Physics
Abstract/Summary:PDF Full Text Request
With the development of optical-band radio subsystems,the stable distribution of aerosol environment has become an important factor that restricts its development and plays a decisive role in the field of military confrontation.In the field of eco-environmental protection,aerosol control technology can be applied to the management of haze and dust environment and improve people's production and living environment.In this article,a novel technique based on coherent acoustic wave disturbance control for aerosols is proposed in combination with the artificial distortion theory of coherent acoustic wave perturbation and the theory of aerosol kinetics.Through theoretical simulation modeling and experimental verification in two aspects of its exploration,the main content of this article is as follows: The aerosol kinetics were analyzed.The physical properties of aerosols are introduced and the definition,size,shape,density and concentration of aerosols are given.The Reynolds number of air dynamics parameters related to the motion of aerosol particles is described.On this basis,the deposition and diffusion motions of aerosol particles were analyzed,and the particle sedimentation velocity and the average thermal velocity of the particles at high Reynolds number were simulated.In this paper,the physical properties of acoustic wave are described,and the wave equation and sound attenuation in the atmosphere are given.The interference and superposition of sound waves are introduced.On this basis,one-dimensional line array coherent sound sources and two-dimensional point array coherent sound sources are simulated.The fluctuation of two irregular sound pressure irregular media generated by atmospheric pressure and two coherent sound sources was simulated and the corresponding theoretical model was established.Using the theoretical model of the coherent acoustic wave excitation system to set up experiments,the feasibility of disturbing atmospheric aerosol control by a coherent acoustic wave excitation system was verified.A new three-dimensional array structure sound source is proposed.The distribution of acoustic pressure media generated by the ring-type three-dimensional array sound source structure suitable for controlling the gathering of aerosol particles is simulated and analyzed.By adjusting the array parameters and sound source parameters of the circular three-dimensional array sound source structure,the gathering and control analysis of typical state aerosol particles was performed.In the laboratory environment,the ring-shaped three-dimensional array sound source structure was used to gather and control aerosol particles to verify the feasibility and correctness of the theoretical simulation.Based on the engineering application background of electronic countermeasures,ecological environment protection,etc.,the engineering application and implementation mode of this method were explored.The research in this dissertation provides new ideas,new concepts and new approaches for the theory of artificial metamorphosis of aerosols,theory of artificial deformation of clear air,military electronic countermeasures,and prevention and control of atmospheric haze.
Keywords/Search Tags:Optical Band Radio Subsystem, Aerosol, Coherent Acoustic Waves-Induced Disturbance, Ring-Type Array Acoustic structure, Artificial Metamorphosis
PDF Full Text Request
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