Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Daniel Eugeniu Crunțeanu"'
Publikováno v:
Inventions, Vol 9, Iss 2, p 28 (2024)
This research investigated a passive flow control technique to mitigate the adverse effects of shock wave–boundary layer interaction on a NACA 0012 airfoil. A perforated plate with a strategically positioned cavity beneath the shock wave anchoring
Externí odkaz:
https://doaj.org/article/9c58b01e7c89477f88312308770a01eb
Publikováno v:
Inventions, Vol 8, Iss 6, p 145 (2023)
In connection with subsonic jet noise production, especially regarding the hot jet from a micro turbojet engine, we encountered a lack of recent high-resolution data in the literature describing the flow field using experimental validation through op
Externí odkaz:
https://doaj.org/article/6bf460b4edd3433e9c79ebec1a6a1e9c
Autor:
Ionut-Florian Popa, Cristian Dobromirescu, Ionut Sebastian Vintila, Iulia Tinca, Dragos Mihai, Alexa Miruna Canache, Daniel Eugeniu Crunteanu
Publikováno v:
Applied Sciences, Vol 14, Iss 20, p 9448 (2024)
The current paper addresses the challenges in manufacturing a critical component of a centrifugal pump for space active thermal control systems of satellites, namely, the closed centrifugal impeller. Compared to the classical technologies, there is a
Externí odkaz:
https://doaj.org/article/d9c62fe3f4174737bfed2648e0e43ef5
Autor:
Anna-Maria Theodora Andreescu, Daniel Eugeniu Crunteanu, Maximilian Vlad Teodorescu, Simona Nicoleta Danescu, Adrian Stoicescu, Alexandru Cancescu, Alexandru Paraschiv
Publikováno v:
Inventions, Vol 9, Iss 5, p 107 (2024)
This paper outlines the development phases of a wave-driven Helicon Plasma Thruster for cutting-edge Low Earth Orbit (LEO) constellations. The two-stage ambipolar electric propulsion (EP) system combines the efficient ionization of an ultra-compact h
Externí odkaz:
https://doaj.org/article/02d4fefbd34b459e8364d47c3fe2ade7
Autor:
Anna-Maria Theodora Andreescu, Daniel Eugeniu Crunteanu, Maximilian Vlad Teodorescu, Simona Nicoleta Danescu, Alexandru Cancescu, Adrian Stoicescu, Alexandru Paraschiv
Publikováno v:
Applied Sciences, Vol 14, Iss 18, p 8308 (2024)
A disruptive Electric Propulsion system is proposed for next-generation Low-Earth-Orbit (LEO) small satellite constellations, utilizing an RF-powered Helicon Plasma Thruster (HPT). This system is built around a Magnetically Enhanced Inductively Coupl
Externí odkaz:
https://doaj.org/article/cb66774b774c429797e607678a699da1
Autor:
Gabriel Petre Badea, Tiberius Florian Frigioescu, Madalin Dombrovschi, Grigore Cican, Marius Dima, Victoras Anghel, Daniel Eugeniu Crunteanu
Publikováno v:
Inventions, Vol 9, Iss 2, p 39 (2024)
The research described in this paper focuses on the development of an innovative unmanned aerial vehicle (UAV) tailored for a specific mission: detecting the acoustic signature emitted by chainsaws, identifying deforestation, and reporting its locati
Externí odkaz:
https://doaj.org/article/dba70588fa814ee08d0625bb478c1911
Publikováno v:
Applied Sciences, Vol 14, Iss 1, p 140 (2023)
Gas turbine engines are an essential component for many industries, such as aerospace, marine propulsion, energy generation, etc., with modern engines capable of achieving high powers, efficiencies and reliability. However, these high performances ar
Externí odkaz:
https://doaj.org/article/731796d68db943aab56013d7c3286294
Publikováno v:
Aerospace, Vol 10, Iss 1, p 47 (2023)
Extensively used in modern gas turbine engines in various applications, ranging from aerospace, marine and terrestrial propulsion to power generation and gas pumping, the axial flow turbines have been continuously updated and are now capable of high
Externí odkaz:
https://doaj.org/article/a0b853a9ffd544089d2b575cf7bc5718
Publikováno v:
Inventions, Vol 9, Iss 5, p 110 (2024)
To alleviate the shock boundary layer interaction adverse effects, various active or passive flow control strategies have been investigated in the literature. This research sheds light on the behavior of perforated plates as passive flow control tech
Externí odkaz:
https://doaj.org/article/8ac2c35974614c60a3c870e328a48964
Publikováno v:
Aerospace, Vol 11, Iss 4, p 292 (2024)
Aircraft engine noise has become a significant concern for air operators to address. Engineering strategies have resulted in the development of easily applicable solutions, known as “passive solutions”, that do not necessitate real-time control.
Externí odkaz:
https://doaj.org/article/ed3d528e0da447d9823d6a91df55835c