Other

Pm & Am Research

Kevin Kremeyer

Matthias Lenzner

Jeremy Yeak

The present invention relates to methods, apparatuses, and systems for controlling the density of a fluid near a functional object in order to improve one or more relevant performance metrics. In certain embodiments, the present invention relates to forming a low density region near the object utilizing a directed energy deposition device to deposit energy along one or more paths in the fluid. In certain embodiments, the present invention relates to synchronizing energy deposition with one or more parameters impacting the functional performance of the object.

Directed energy deposition to facilitate high speed applications

Systems, equipment, and methods to deposit energy to modify and control shock waves and hypersonic or supersonic fluid flow, including systems for controlling, mitigating, and/or effecting air flow in relation to air vehicles, wind tunnels, or other assets, or the like, as well as systems, equipment, and methods for disrupting the shock structure at the inlet for the engine of an air vehicle traveling at supersonic or hypersonic speed; mitigating blast effects on vehicles; mitigating heating of throats in supersonic and hypersonic wind tunnels, as well as control the flow parameters and Mach number in their test sections.

Energy-deposition systems, equipment and methods for modifying and controlling shock waves and supersonic flow

Systems, equipment, and methods to deposit energy to modify and control air flow, lift, and drag, in relation to air vehicles, and methods for seeding flow instabilities at the leading edges of control surfaces, primarily through shockwave generation through deposition of laser energy at a distance.

Laser-based flow modification to remotely control air vehicle flight path

A system for modifying a shock wave formed in a fluid by a body to modify effects of the shock wave on information transferred to or from the body. The system includes an element for heating fluid along a path to form a volume of heated fluid expanding outwardly from the path, the path extending from the body and through the shock wave; an element for transferring the information to or from the body; and an element for timing the transferring of the information relative to the heating of the fluid along the path to modify certain effects of the shock wave on the information.

Shock wave modification method and system

A technique for controlling the effects generated by the interaction of a plurality of laser pulses with a medium by selecting or varying the successive pulse parameters comprising: generating a plurality of laser pulses interacting with a medium; and selecting or varying the properties/parameters characterizing said laser pulses to control the effects resulting from the interaction among said plurality of laser pulses and said medium.

Method and technique to control laser effects through tuning of parameters such as repetition rate

Energy-deposition systems, equipment and method for modifying and controlling shock waves and supersonic flow

The invention provides a method for acoustically and optically characterizing an immersed object of interest by generating a serial plurality of acoustic and optical illumination pulses through a liquid. In addition to the spectral analysis/imaging of objects/environment made possible by the white-light illumination, a target material can be ablated, generating an ionized plume to spectrally identify the target's constituent atoms.

Acoustic and optical illumination technique for underwater characterization of objects/environment

A shock wave in a gas is modified by emitting energy to form an extended path in the gas; heating gas along the path to form a volume of heated gas expanding outwardly from the path; and directing a path. The volume of heated gas passes through the shock wave and modifies the shock wave. This eliminates or reduces a pressure difference between gas on opposite sides of the shock wave. Electromagnetic, microwaves and/or electric discharge can be used to heat the gas along the path. This application has uses in reducing the drag on a body passing through the gas, noise reduction, controlling amount of gas into a propulsion system, and steering a body through the gas. An apparatus is also disclosed.

The invention provides a method for acoustically and optically characterizing an immersed object of interest by generating a serial plurality of acoustic and optical illumination pulses through a liquid. In addition to the spectral analyses/imaging of objects/environment made possible by the white-light illumination, a target material can be ablated, generating an ionized plume to spectrally identify the target's constituent atoms.

A system for modifying a shock wave formed in a fluid by a body to modify effects of the shock wave on information transferred to or from the body. The system includes laser pulses for heating fluid along a path to form a volume of heated fluid expanding outwardly from the path, the path extending from the body and through the shock wave; an element for transferring the information to or from the body; and a timer for timing the transferring of the information relative to the heating of the fluid along the path to modify certain effects of the shock wave on the information.

A system for modifying a shock wave formed in a fluid by a body to modify effects of the shock wave on information transferred to or from the body. The system includes an element for heating fluid along a path to form a volume of heated fluid expanding outwardly from the path, the path extending from the body and through the shock wave; mechanism for transferring the information to or from the body; and device for timing the transferring of the information relative to the heating of the fluid along the path to modify certain effects of the shock wave on the information.

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Tucson, AZ, United States of America

Kevin Kremeyer