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Pau Bas-Calopa, Jordi-Roger Riba and Manuel Moreno-Eguilaz
The combination of the low-pressure environment found in aircraft systems and the gradual electrification of aircraft increases the risk of electrical discharges occurrence. This is an undesirable situation that compromises aircraft safety and complicate...
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Victor V. Kuzenov, Sergei V. Ryzhkov and Aleksey Yu. Varaksin
This paper provides an overview of modern research on magnetoplasma methods of influencing gas-dynamic and plasma flows. The main physical mechanisms that control the interaction of plasma discharges with gaseous moving media are indicated. The ways of o...
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Pau Bas-Calopa, Jordi-Roger Riba and Juan Antonio Ortega
Strict regulations issued by international administrative bodies limit the CO2 equivalent emissions for new aircraft, while increasing efficiency requirements. To reach this goal, next generations of aircraft will use more electrical power than their pre...
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Jordi-Roger Riba
Due to the increase in electrical power demand, future more electric and all-electric aircraft designs will operate at higher voltage levels compared to current aircraft. Due to higher voltage levels and reduced operating pressure, insulation systems wil...
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Sanghyun Jo, Suik Kang, Kyungjun Lee and Ho Jun Kim
This study investigates, numerically, the spatial distribution of metastable helium (He*) in He/SiH4 capacitively coupled plasma (CCP) for the purpose of optimizing plasma density distributions. As a first step, we presented the results of a two-dimensio...
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Hugonnaud Valentin and Mazouffre Stéphane
Over the last decade electric propulsion devices have evolved from laboratory units to qualified space hardware. Due to the diversity of concepts numerous electric thruster technologies are available on the new space market. Each technology has a specifi...
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maria elisa leite costa,Sérgio Koide,Daniela Junqueira Carvalho,Jeremie Garnier
Pág. 47 - 68
Entre fevereiro de 2018 e janeiro de 2020, foi realizado o monitoramento hidrológico e de qualidade da água do Córrego Vicente Pires, localizado em uma zona urbana do Distrito Federal, a fim de avaliar as alterações na qualidade da água a partir da deter...
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Matthew S. Glascock, Joshua L. Rovey and Kurt A. Polzin
Electric solid propellants are advanced solid chemical rocket propellants that can be controlled (ignited, throttled and extinguished) through the application and removal of an electric current. This behavior may enable the propellant to be used in multi...
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Michael Schmidt, Veronika Hahn, Beke Altrock, Torsten Gerling, Ioana Cristina Gerber, Klaus-Dieter Weltmann and Thomas von Woedtke
A new configuration of a discharge chamber and power source for the treatment of up to 1 L of liquid is presented. A leakage transformer, energizing two metal electrodes positioned above the liquid, limits the discharge current inductively by utilizing t...
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Erick Silva de Sá,Tarso Vilela Ferreira,Arthur Francisco Andrade,Gustavo Paiva Lopes,Gabriel Henrique de Faria,Gabriel Vidal Negreiros Bezerra
Pág. 168 - 178
Neste trabalho é proposta a modelagem dos fenômenos de ionização e desionização do ar, com ênfase em ondas padronizadas e não padronizadas causadas por descargas atmosféricas, em uma perspectiva macroscópica, utilizando software (licencia Nº 1037910), ba...
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