Laser-Driven Water-Powered Propulsion and Air Curtain for Vacuum Insulation

Yamaguchi, Masashi; Nakagawa, Ryou; Yabe, Takashi; Baasandash, Choijil; Aoki, Koichi; Ohkubo, Tomomasa; Sakata, Masashi; Ogata, Youichi; Nakagawa, Masamichi

doi:10.1063/1.1582142

Cited by 5 publications

(1 citation statement)

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“…We emphasized the advantage of laser propulsion with a target using metal and water, which we call "water cannon target (WC), and found that its propulsion provides higher acceleration [2,3] than solid overlay. Up to this now, we studied the use of laser propulsion in stratosphere [5]. Up to this now, we studied the use of laser propulsion in stratosphere [5].…”

Section: Introductionmentioning

confidence: 99%

Proposal of Liquid Cannon Target Driven by Fiber Laser for Micro-Thruster in Satellite

Yabe¹,

Ohzono²,

Ohkubo³

et al. 2004

AIP Conference Proceedings

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We propose a new concept controlling a satellite by a fiber laser loaded in it and demonstrated the acceleration of pendulum with 7kW/2n and 2kHz fiber laser, and measured the Cm of 16Ns/MJ corresponding to the scaling of YAG laser. This laser can be easily bundled to generate much larger power. For more efficient acceleration, we propose "metal-free water cannon target", the new concept of propulsion using only water. The momentum coupling coefficient of 2500[Ns/MJ] was achieved with vacuum pump oil instead of water, and we succeeded in controlling the driving direction by the system based on the new concept. This can be used for thrusting a satellite and controlling its posture in combination with fiber lasers.

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Section: Introductionmentioning

confidence: 99%

Proposal of Liquid Cannon Target Driven by Fiber Laser for Micro-Thruster in Satellite

Yabe¹,

Ohzono²,

Ohkubo³

et al. 2004

AIP Conference Proceedings

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Near-Term Application of Water-Powered Laser-Propulsion

Baasandash¹,

Yabe²,

Oku³

et al. 2004

AIP Conference Proceedings

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We found that water overlay on a metal layer is more effective than solid overlay [1]. By using this target we demonstrated the successful flight of paper-airplane of 5 cm-size over a distance of l-2m[2]. In this paper, repetitive water supply system and levitation system are proposed for practical application, and examined by experiments. We succeeded in driving an object continuously using repetitive water supply and air slider. We also succeeded in driving 300g object by 0.5J laser using these equipments. In this paper, we try to find out a new possibility of water-powered laser propulsion.

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From supercritical hydrodynamic expansion to explosive phase change: Thermodynamic evolution of water during its interaction with high-intensity infrared nanosecond-pulsed laser

2009

Journal of Applied Physics

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A predictive hydrodynamic model has been developed for high-intensity infrared nanosecond laser-water interactions. The model is first tested by comparing with experimental measurements for laser-induced pressure and shock wave propagation. Then the verified predictive model is applied to quantitatively understand the water thermodynamic state evolution, which has not been sufficiently studied in literature. It has been found that for the studied intense infrared nanosecond laser-water interaction, the major phase change process during the early stage is the supercritical hydrodynamic expansion followed by an explosive phase change process that occurs as the water thermodynamic-state curve approaches (from outside the binodal curve) and starts touching the critical point in the phase diagram. The model shows that the explosive phase change occurs at a delay time of ∼150 ns after laser pulse starts, which is quantitatively consistent with previous experimental observations.

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Laser-Driven Water-Powered Propulsion and Air Curtain for Vacuum Insulation

Cited by 5 publications

References 0 publications

Proposal of Liquid Cannon Target Driven by Fiber Laser for Micro-Thruster in Satellite

Proposal of Liquid Cannon Target Driven by Fiber Laser for Micro-Thruster in Satellite

Near-Term Application of Water-Powered Laser-Propulsion

From supercritical hydrodynamic expansion to explosive phase change: Thermodynamic evolution of water during its interaction with high-intensity infrared nanosecond-pulsed laser

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