Results 201 to 210 of about 4,729 (241)

Construction methodology for lip surface of a submerged inlet

Aerospace Science and Technology, 2016
Abstract The design of submerged inlet remains a challenge as the design involves both the fuselage and the inlet internal duct. The inlet lip surface blending needs to meet stringent conditions, which vary considerably from fore lip to aft lip. The need for high aerodynamics performance also adds to the difficulty of the design process.
Yuan-guang Wang, Chang-hui Wang, Ying-chao Xiao, Bing Chen, Shuo Zhou, Jing-tao Guo, Ming-wei Sun   +6 more
exaly   +2 more sources

Numerical Analysis and Experimental Validation of a Submerged Inlet on the Plane Surface

Chinese Journal of Aeronautics, 2005
AbstractIn order to get a deep insight of a submerged inlet on the plane surface, the integrated flow-field of the inlet and fuselage has been numerically studied. The investigation is mainly focused on the formation of the total pressure distribution at the exit of the inlet, the structure of the inner flow and the effects of the boundary layer along ...
SUN, Shu, GUO, Rong-wei
exaly   +2 more sources

Aerodynamic efficiency analysis of the ridge integrated submerged inlet

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
In this study, a new ridge surface is proposed and its impact on the aerodynamic efficiency of a generic top-mounted submerged inlet is investigated at Mach 0.3 to 0.5. The concept is developed to investigate the possibility of vortex breakdown manipulation by the ridge surface to control the chaotic flow pattern after the breakdown, measuring the ...
Eiman B Saheby, Xing Shen
exaly   +2 more sources

Numerical Investigation of Geometrical Design Effect on the Submerged Inlet Aerodynamics Characteristics

International Journal of Aeronautical and Space Sciences, 2019
In the present study, turbulent flow at submerged inlets is numerically studied. Five different geometries including the standard inlet developed by National Advisory Committee for Aeronautics (NACA), divergent inlet, parallel inlet and two new proposed geometries are compared.
Mehdi Miansari, Davood Toghraie, Toghraie Davood   +2 more
exaly   +2 more sources

Investigation of submerged inlets to deep rectangular sluices

Hydrotechnical Construction, 1967
1. The presented theoretical and experimental values of the coordinates of the surface of vacuum-free inlets (under actual conditions they can be with a weak vacuum) obtained from an examination of the discharge of water from under a gate under conditions of a plane problem can be used in appropriate cases when extreme vacuums or unfavorable ...
N. P. Rozanov, N. Ya. Konakhovich, L. N. Orlova   +2 more
openaire   +1 more source

Integrated design of submerged inlet and fuselage

Journal of Physics: Conference Series
Abstract In response to the demand for unmanned aerial vehicles’ (UAVs) survivability in complex and dynamic battlefield environments, a submerged inlet with both stealth and aerodynamic features was designed. This inlet improves the total pressure recovery coefficient by adding a flow control slot in front of the inlet and using a ...
Zeqi Qi, Zheng Guo, Zheng Fan
exaly   +2 more sources

Aerodynamic and aeroacoustic analyses of a submerged air inlet in a low-Mach-number flow

Computers and Fluids, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nicolas J Pignier, Ciarán J O'Reilly, Susann Boij   +2 more
exaly   +3 more sources

Adjoint based aerodynamic shape optimization of a semi-submerged inlet duct and upstream inlet surface

Optimization and Engineering
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ismail H Tuncer
exaly   +2 more sources

Variation of Flow Control Configurations to Improve Submerged Inlet Uniformity

47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition, 2009
A ∞ow control study was initiated upon a generic submerged inlet to determine whether discrete blowing could be efiective in eliminating the boundary layer deflcit created in the throat and therefore the engine face. The throat was a rectangular area of 7.14 cm 2 , with the stream wise velocity of Mach 0.064, with a free stream velocity of Mach 0.039 ...
Tina Reynolds, Mark Reeder
openaire   +1 more source

Multi-Objective Shape Optimization Study for a Subsonic Submerged Inlet

Journal of Propulsion and Power, 2004
The findings of a multi-objective shape optimization study conducted for a subsonic submerged air vehicle inlet are summarized. The objective functions of the optimization problem are distortion and swirl indices defined by the distribution of flow parameters over the exit cross section of the inlet.
Ezgi S. Taskinoglu, Doyle D. Knight
openaire   +1 more source