Academic literature on the topic 'High-Speed Plasma Jet'

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Journal articles on the topic "High-Speed Plasma Jet"

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Bobzin, K., M. Öte, M. A. Knoch, I. Alkhasli, and H. Heinemann. "High-Speed Video Analysis of the Process Stability in Plasma Spraying." Journal of Thermal Spray Technology 30, no. 4 (2021): 987–1000. http://dx.doi.org/10.1007/s11666-021-01159-1.

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AbstractIn plasma spraying, instabilities and fluctuations of the plasma jet have a significant influence on the particle in-flight temperatures and velocities, thus affecting the coating properties. This work introduces a new method to analyze the stability of plasma jets using high-speed videography. An approach is presented, which digitally examines the images to determine the size of the plasma jet core. By correlating this jet size with the acquisition time, a time-dependent signal of the plasma jet size is generated. In order to evaluate the stability of the plasma jet, this signal is an
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Yuan, Ye, Yan Zhang, Cheng Guo, et al. "Optical analysis method for fast plasma characterization of high-speed miniaturized synthetic jet." Chinese Optics Letters 20, no. 7 (2022): 073001. http://dx.doi.org/10.3788/col202220.073001.

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SAMIMY, M., J. H. KIM, J. KASTNER, I. ADAMOVICH, and Y. UTKIN. "Active control of high-speed and high-Reynolds-number jets using plasma actuators." Journal of Fluid Mechanics 578 (April 26, 2007): 305–30. http://dx.doi.org/10.1017/s0022112007004867.

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Localized arc filament plasma actuators are used to control an axisymmetric Mach 1.3 ideally expanded jet of 2.54 cm exit diameter and a Reynolds number based on the nozzle exit diameter of about 1.1×106. Measurements of growth and decay of perturbations seeded in the flow by the actuators, laser-based planar flow visualizations, and particle imaging velocimetry measurements are used to evaluate the effects of control. Eight actuators distributed azimuthally inside the nozzle, approximately 1 mm upstream of the nozzle exit, are used to force various azimuthal modes over a large frequency range
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Watanabe, Takayuki, Manabu Tanaka, Tasuku Shimizu, and Feng Liang. "Metal Nanoparticle Production by Anode Jet of Argon-Hydrogen DC Arc." Advanced Materials Research 628 (December 2012): 11–14. http://dx.doi.org/10.4028/www.scientific.net/amr.628.11.

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The purpose of this paper is to prepare nickel particles by arc plasma method with hydrogen addition. The effect of anode jet formation on the nanoparticle production was investigated by high-speed camera observations. The high-speed camera system with appropriate band-pass filters successfully provides the observation of anode jet image without cathode jet image. The areas of the anode jet and the cathode jet were separately estimated from the high-speed images. From these observations, the periodical fluctuation of the anode jet was confirmed. Higher hydrogen concentration leads to larger an
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Zhu, Xia, Taisuke Satoh, Hiromichi Toyota, Shinfuku Nomura, Yukiharu Iwamoto, and Pria Gautama. "Basic Characteristics of In-Liquid Plasma Jet and Electrode Damage." Key Engineering Materials 749 (August 2017): 76–80. http://dx.doi.org/10.4028/www.scientific.net/kem.749.76.

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The most progress towards a practical method of fusing municipal waste incineration ash has been in the use of a plasma jet that employs arc discharge, a form of thermal plasma. However, a remaining problem is that stable plasma generation is prevented by melting of the nozzle of the plasma-jet torch by the high-temperature plasma flow. With the objective of developing high-speed fusion treatment for waste materials using an in-liquid plasma jet, basic research was conducted on plasma stability and the durability of plasma-jet torches, including electrodes and nozzles. Basic plasma jet charact
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Hashizawa, Akio, Manabu Tanaka, Takayuki Watanabe, and Tomohiro Koga. "Effect of External Magnetic Field on Long DC Arc Characteristics with Rng-shaped Anode." MATEC Web of Conferences 333 (2021): 03004. http://dx.doi.org/10.1051/matecconf/202133303004.

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Fluctuation phenomena of plasma jet flow in an innovative long DC arc system with a ring-shaped anode were successfully clarified by a high-speed camera visualization. The long DC arc with long electrode gap distance more than 350 mm has been applied to gas decomposition due to its advantages of long plasma length, resulting in long residence time of treated gas. However, large heat loss at a conventional hemispherical-shaped anode was a critical issue in the long DC arc system. Therefore, the ring-shaped anode was utilized to convert large energy loss at the anode into the plasma jet flow. Hi
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Hashizawa, Akio, Manabu Tanaka, Takayuki Watanabe, and Tomohiro Koga. "Effect of External Magnetic Field on Long DC Arc Characteristics with Rng-shaped Anode." MATEC Web of Conferences 333 (2021): 03004. http://dx.doi.org/10.1051/matecconf/202133303004.

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Fluctuation phenomena of plasma jet flow in an innovative long DC arc system with a ring-shaped anode were successfully clarified by a high-speed camera visualization. The long DC arc with long electrode gap distance more than 350 mm has been applied to gas decomposition due to its advantages of long plasma length, resulting in long residence time of treated gas. However, large heat loss at a conventional hemispherical-shaped anode was a critical issue in the long DC arc system. Therefore, the ring-shaped anode was utilized to convert large energy loss at the anode into the plasma jet flow. Hi
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Mohammed, A. I., and C. S. Adams. "Ion shock layer formation during multi-ion-species plasma jet stagnation events." Physics of Plasmas 29, no. 7 (2022): 072307. http://dx.doi.org/10.1063/5.0087509.

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We report the characteristics of collisional plasma shocks formed during interactions between low density ([Formula: see text] cm−3), low temperature ([Formula: see text] eV), high velocity (30 km s−1), plasma jets and stagnant plasma of similar parameters. This investigation seeks to probe the structure of shocks in multi-ion-species plasmas, in particular, the presence of gradient-driven ion species separation at the shock front. The railgun-accelerated jets utilized here have previously been shown to exist in a collisional regime with intra-jet collisional mean-free-path substantially small
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Pogrebnyak, A. D., Yu N. Tyurin та A. P. Kobzev. "High-speed plasma jet modification and doping of α-Fe". Technical Physics Letters 27, № 8 (2001): 619–21. http://dx.doi.org/10.1134/1.1398947.

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Frolov, Vasiliy, and Yury Klochkov. "Numerical Simulation of Plasma Spraying Performance Index." E3S Web of Conferences 221 (2020): 03006. http://dx.doi.org/10.1051/e3sconf/202022103006.

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In recent years, there has been an increasing interest in plasma jet numerical simulation. Speed and temperature propagation in axial and radial direction in plasma jet significantly influences on speed and temperature of sprayed material and therefore on coating quality. However, there are few studies concerning plasma jet numerical simulation in modern software systems and they describe a specific problem. It is a wellknown fact that using simple structural components such as plasmatron heads for plasma thermal spraying allows us to increase the quality of zirconium oxide coatings by increas
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Dissertations / Theses on the topic "High-Speed Plasma Jet"

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Choi, Woong-Sik. "Flame stabilization by a plasma driven radical jet in a high speed flow." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29780.

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Thesis (Ph.D)--Mechanical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Zinn, Ben; Committee Co-Chair: Jagoda, Jeff; Committee Member: Glezer, Ari; Committee Member: Jeter, Sheldon; Committee Member: Neumeier, Yedidia. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Alontseva, D. L., A. L. Krasavin, A. V. Russakova, and N. Sadvakasova. "Computer Simulation of Temperature Profiles for DC Pulse Plasma Jet Modification of Co-based Plasma Detonation Coatings." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35117.

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This paper deals with locating the temperature field in a coated plate heated by a moving heat source. The relevance of this problem lies in the challenge of selecting the optimum exposure modes for modifying irradiation of protective powder coatings deposited by a high-speed plasma jet. Based on a number of ex-perimental studies of the structure and properties of these coatings before and after additional plasma jet irradiation, we concluded that it is necessary to model the distribution of temperature during irradiation in order to justify the choice of irradiation parameters such as the sou
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Hamer, Matthew David. "Design of Optical Measurements for Electrothermal Plasma Discharges." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/49101.

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Ablation controlled electrothermal (ET) plasma discharge devices consist of a small diameter capillary through which a large amount of energy is discharged. The high energy in the discharge ablates an inner sleeve material, ionizes the material, and a high energy-density plasma jet accelerates out the open end. ET devices can find applications in internal combustion engines, Tokamak fusion fueling and stabilization, hypervelocity launchers, and propulsion. The ballistic properties of an ET device are highly dependent on the propellant and ablated material. A useful noninvasive technique to cha
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Bathgate, Stephen Norman. "The use of magnetic fields to create high-speed plasma jets for spacecraft propulsion." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/17025.

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The aim of the work reported in this thesis has been to explore arrangements of magnetic fields and electric currents to create novel plasma thrusters that are more efficient and less complex than existing designs. Two original devices are discussed, firstly a thruster that uses a magnetic nozzle in combination with a High Power Impulse Magnetron Sputtering source (HiPIMS) to produce a jet of copper plasma and secondly, a thruster that uses the phenomena of magnetic reconnection that occurs between opposing magnetic fields in a plasma to produce a plasma jet. While HiPIMS has been normally em
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Speth, Rachelle Lea. "Controlling The Development of Coherent Structures in High Speed Jets and The Resultant Near Field." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1447419083.

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Rehmet, Christophe. "Étude théorique et expérimentale d’une torche plasma triphasée à arcs libres associée à un procédé de gazéification de matière organique." Thesis, Paris, ENMP, 2013. http://www.theses.fr/2013ENMP0041/document.

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Les torches à arcs plasma sont actuellement utilisées dans de nombreuses applications industrielles. Une technologie plasma triphasée à électrodes en graphite est en cours de développement au Centre PERSEE MINES ParisTech. Cette technologie diffère sensiblement des technologies à courant continu traditionnelles et vise à dépasser certaines limites des systèmes actuels en termes de robustesse, de coûts d'équipement et d'exploitation pour des applications liées à conversion et la valorisation de biomasse et déchets. Dans le but d'améliorer la compréhension des phénomènes physiques instationnaire
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Book chapters on the topic "High-Speed Plasma Jet"

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Popov, Alexander, Alla Popova, Alexandr Fumin, Mikhail Novoselov, Sergey Zakharov, and Mikhail Radkevich. "High-Speed Dimensional Processing of Metallic Materials with an Environmentally Friendly Jet Electrolyte-Plasma Method." In Proceedings of I4SDG Workshop 2021. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-87383-7_52.

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Conference papers on the topic "High-Speed Plasma Jet"

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Li, C., Q. Shu, Z. Cui, G. Li, and Y. C. F. Thio. "Application of a high-speed imaging system for characterization of a hypersonic plasma jet." In 2024 IEEE International Conference on Plasma Science (ICOPS). IEEE, 2024. http://dx.doi.org/10.1109/icops58192.2024.10627664.

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Samimy, Mo, Jin-Hwa Kim, I. Adamovich, Y. Utkin, and S. Keshav. "HIGH SPEED JET CONTROL USING PLASMA ACTUATORS." In Fourth International Symposium on Turbulence and Shear Flow Phenomena. Begellhouse, 2005. http://dx.doi.org/10.1615/tsfp4.1190.

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DASH, SANFORD. "Observations on practical turbulence modeling for high-speed jet/plume flowfields." In 22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference. American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-1789.

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Matlis, Eric H., Thomas C. Corke, Dren Qerimi, and David Ruzic. "Single Electrode A.C. Plasma Anemometer in High Speed H2 Jet With Background RF Plasma." In AIAA AVIATION 2022 Forum. American Institute of Aeronautics and Astronautics, 2022. http://dx.doi.org/10.2514/6.2022-3364.

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Kim, Jong-Uk, Gaung-Hoon Kim, and Hyyong Suk. "Investigation of the laser-induced plasma produced in a gas-filled chamber and in a gas jet." In 25th international Congress on High-Speed photography and Photonics, edited by Claude Cavailler, Graham P. Haddleton, and Manfred Hugenschmidt. SPIE, 2003. http://dx.doi.org/10.1117/12.516989.

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Ito, Yosuke, Osamu Sakai, Kunihide Tachibana, et al. "High Speed Deposition of Oxide Materials by Using Plasma Jet at Atmospheric Pressure." In INTERNATIONAL CONFERENCE ON ADVANCES IN CONDENSED AND NANO MATERIALS (ICACNM-2011). AIP, 2011. http://dx.doi.org/10.1063/1.3653596.

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Losseva, Tatiana, Anatoly Golub', Igor Kosarev, Yury Poklad, and Andrey Lyakhov. "Determination of the high-speed plasma jet injection parameters in the "Fluxus" experiments." In 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, edited by Oleg A. Romanovskii and Gennadii G. Matvienko. SPIE, 2021. http://dx.doi.org/10.1117/12.2603249.

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Peters, S., J. Schafer, R. Foest, T. Gerling, T. Hoder, and K. D. Weltmann. "High speed monitoring of the discharge regimes of a non-thermal atmospheric pressure plasma jet." In 2011 IEEE 38th International Conference on Plasma Sciences (ICOPS). IEEE, 2011. http://dx.doi.org/10.1109/plasma.2011.5992965.

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Schein, J., and G. Forster. "Innovative High-Speed Camera System Diagnostics of Plasma Torch Fluctuations." In ITSC2008, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and G. Montavon. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2008. http://dx.doi.org/10.31399/asm.cp.itsc2008p0804.

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Abstract Instabilities in plasma torches can result in poor particle heating and thus a production of low quality coatings. In order to investigate these fluctuations numerous experiments have been performed using high speed cameras taking pictures at a rate of 1000 images/s to create sequences with duration of few seconds total. Individual exposure times are usually in the range of few microseconds. In order to improve upon these parameters a new high speed camera system (HOBAS) was developed, which has been demonstrated to acquire short film sequences at a rate of 106 images/s using exposure
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Beall, L., Z. Duan, J. Schein, J. Heberlein, M. Stachowicz, and M. P. Planche. "Controls for Plasma Spraying Based on Plasma Jet Stability Analysis." In ITSC 1998, edited by Christian Coddet. ASM International, 1998. http://dx.doi.org/10.31399/asm.cp.itsc1998p0815.

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Abstract Despite the fact that plasma spraying has been a widely used technology over the past three decades, industries using this technology still need higher quality products. Presently, only a small degree of process control is used in most plasma spraying systems. Improved process control should lead to more consistent results and higher quality products. We discuss a relatively simple control scheme consisting of a microphone as a primary sensor and a fuzzy logic look-up model indicating the condition of the anode. Selected frequency peaks in the power spectrum of the microphone signal a
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