Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Ionuţ Porumbel"'
Autor:
Andrei V. Cojocea, Tudor Cuciuc, Ionuţ Porumbel, Mihnea Gall, Bogdan Gherman, Daniel E. Crunţeanu
Publikováno v:
Volume 3B: Combustion, Fuels, and Emissions.
Detonation combustion unveils avenues towards increased performances and efficiencies of classic deflagration architectures and enables opportunities for supersonic flight platforms. Furthermore, their primarily fuel candidate, Hydrogen, which is pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::573908677a69fe9f8fc3eba4f27773ea
https://doi.org/10.1115/gt2022-82393
https://doi.org/10.1115/gt2022-82393
Publikováno v:
Energies, Vol 17, Iss 19, p 4918 (2024)
Combustion through detonation marks an important leap in efficiency over standard deflagration methods. This research introduces a Pulsed Detonation Combustor (PDC) model that uses Hydrogen as fuel and Oxygen as an oxidizer, specifically targeting ca
Externí odkaz:
https://doaj.org/article/ab10c1190f094b2eae0f411b4764589e
Publikováno v:
Transportation Research Procedia. 29:330-338
The paper, elaborated in the framework of the ESA activity "Green thruster for attitude control and orbital manoeuvres of small satellites (GREENTH)", focuses on the preliminary stages of an experimental program aiming to evaluate the feasibility and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59a2cf512bdb0dc9a266240312d4dfb8
https://doi.org/10.1016/j.trpro.2018.02.030
https://doi.org/10.1016/j.trpro.2018.02.030
Publikováno v:
Applied Sciences, Vol 14, Iss 14, p 5999 (2024)
Detonation combustion represents a significant advancement in efficiency over traditional deflagration methods. This paper presents a Pulsed Detonation Combustor (PDC) model that is designed with an aerodynamic mixing chamber featuring Hartmann–Spr
Externí odkaz:
https://doaj.org/article/255fe9878963475e89f839bc72eeeb4c
Publikováno v:
Applied Mechanics and Materials. 859:20-28
The paper presents the background and objectives of a new research project carried out in the field of in situ gas turbine combustion. An extensive literature review highlighting the state-of-the-art in the field is presented. Several possible soluti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3654214c2f1470fb3a3664b70a69e6f5
https://doi.org/10.4028/www.scientific.net/amm.859.20
https://doi.org/10.4028/www.scientific.net/amm.859.20
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 916:012035
The paper focuses on studying the influence of mesh size, numerical discretization schemes and different turbulence models on radial impeller performances. The chosen impeller is a 14:1 pressure ratio novel design for use in the TIDE pulse detonation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc7080b51355b40d44310eae2de77c62
https://doi.org/10.1088/1757-899x/916/1/012035
https://doi.org/10.1088/1757-899x/916/1/012035
Autor:
Bogdan Gherman, Ionuţ Porumbel, Cristian Puscasu, Oana Dumitrescu, Valeriu Dragan, Ion Malael
Publikováno v:
AIP Conference Proceedings.
The current paper concerns the development of a very high pressure ratio single stage centrifugal compressor. Several research questions: assessing the design point of the impeller, behavior towards stall and surge as well as the turbulence model sen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f746d32fdfb020bf653ed40c8863968d
https://doi.org/10.1063/1.5081544
https://doi.org/10.1063/1.5081544
Publikováno v:
Applied Mechanics and Materials. 811:194-198
The paper presents RANS numerical simulations carried out to calibrate the Pitot tube velocity measurements in order to extend the accurate measurement range to high velocities, up to 250 m/s. Three calibration methods are proposed, able to reduce th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d860c4749e6f8d046e8ba15984c15f2
https://doi.org/10.4028/www.scientific.net/amm.811.194
https://doi.org/10.4028/www.scientific.net/amm.811.194
Autor:
Alina Bogoi, Tudor Cuciuc, Andrei Vlad Cojocea, Mihnea Gall, Ionuț Porumbel, Constantin Eusebiu Hrițcu
Publikováno v:
Aerospace, Vol 11, Iss 6, p 465 (2024)
A pulsed detonation chamber (PDC) equipped with Hartmann–Sprenger resonators has been designed and tested for both Hydrogen/air and Hydrogen/Oxygen mixtures. A full-factorial experimental campaign employing four factors with four levels each has be
Externí odkaz:
https://doaj.org/article/1690b88c2573426d8237e58d96e80216
Publikováno v:
Applied Mechanics and Materials. 555:395-400
The main goal of the work presented here was to develop, implement and test a highly efficient numerical algorithm for the evaluation of the chemical reaction source terms that appear in the Navier - Stokes equations when a turbulent, premixed, react
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63b96cbf2267bfe97b9125a27b0e2062
https://doi.org/10.4028/www.scientific.net/amm.555.395
https://doi.org/10.4028/www.scientific.net/amm.555.395