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Xuan Bai and Baigang Mi
A submerged inlet has good stealth characteristics and a low external drag, but it also has the disadvantage of low internal flow efficiency. In view of this, a new efficiency enhancement method based on the prepositive synergistic bulge of the inlet?s a...
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Junyao Zhang, Hao Zhan and Baigang Mi
Submerged inlets have been widely used in advanced aircraft due to their excellent stealth characteristics, but they also suffer from poor aerodynamic performance. To improve the aerodynamic efficiency while maintaining stealth capabilities, this paper p...
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Pedro D. Bravo-Mosquera, Hernán D. Cerón-Muñoz and Fernando M. Catalano
The aerodynamic design of a new aircraft concept was investigated through subsonic wind-tunnel testing using 1:28-scale powered models. The aircraft configuration integrates a box-wing layout with engines located at the rear part of the fuselage. Measure...
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Hangwen Zhang, Bochen Li, Boyang Li and Cheng Yang
A numerical method is used to evaluate the influence of propeller parameters on the aerodynamic performance of shrouded coaxial dual rotors in hover. Compared with the open-rotor configuration, the shrouded rotors reduce the tip vortex, resulting in a hi...
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Tomasz Palacz and Jacek Cieslik
The paper is part of the research aimed at determining if the vortex flow pancake (VFP) hybrid rocket engine is feasible as green in-space chemical propulsion. The objective of this study is to test an N2O/HDPE VFP hybrid ignited with N2O/C3H8 torch igni...
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Uchechi Ukaegbu, Lagouge Tartibu and C. W. Lim
Energy demand and consumption have, in recent times, witnessed a rapid proliferation influenced by technological developments, increased population and economic growth. This has fuelled research trends in the domain of energy management employing tri-gen...
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José Galindo, Andrés Tiseira, Roberto Navarro, Lukas Benjamin Inhestern and Juan David Echavarría
The flow through the stator vanes of a variable geometry turbocharger turbine can reach supersonic conditions and generates a shock wave on the stator vanes, which has a potential impact on the flow loss as well as on unsteady aerodynamic interaction. Th...
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Yuling Li, Lianjie Yue, Chengming He, Wannan Wu and Hao Chen
The present paper focuses on the Lagrange optimization of shock waves for a two-dimensional hypersonic inlet by limiting the cowl internal angle and inlet length. The results indicate the significant influences of geometric constraints on the configurati...
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Arman Ameen, Haruna Yamasawa and Tomohiro Kobayashi
The corner impinging jet ventilation is a new air distribution system for use in office environments. This study reports the mean flow field behavior of dual isothermal corner-placed inlets based on an impinging jet in a square-shaped room with the size ...
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Fernando Illán-Gómez, José Ramón García-Cascales, Francisco Javier Sánchez-Velasco and Ramón A. Otón-Martínez
In this work we analyze numerically different design configurations to be used in a R1234yf DMS cycle coupled with a water source, transcritical CO2 heat pump for heating applications in the building sector. Specifically, we study the temperature range p...
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