Results 251 to 260 of about 38,616 (285)

Numerical Investigations of S-Shaped Air Inlet for Embedded Engines

Journal of Propulsion and Power, 2019
In this paper, compressible Reynolds-averaged Navier–Stokes computations are conducted for an S-shaped duct, in a clean configuration and also with a single row of vortex generators.
Leandro S. M. Lima, Rudolf Huebner, Luiz Tobaldini   +2 more
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Numerical simulation on aerodynamic performance of dorsal S-shaped inlet

2010 3rd International Symposium on Systems and Control in Aeronautics and Astronautics, 2010
Inlet distortions of the engine at high-angle-of-attack flight conditions have become a major concern for scholars. The aerodynamic performances of a dorsal S-shaped inlet of unmanned aerial vehicle (UAV) engine at different flight conditions are simulated in the current work, based on 3D computational fluid dynamic (CFD) method with NUMECA software ...
null Zhang Zhang, null Quan-yong Xu, null An-ping Hou   +2 more
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S-Shaped Inlet Design Optimization Using the Adjoint Equation Method

42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2006
This paper presents an application of the adjoint equation method, a well-established method for aerodynamic shape optimization in external flow, to the internal-flow problem of engine inlet design. A serpentine shaped duct with prescribed entrance and exit geometries is considered, where the design objective is to optimize the curvature and cross ...
Zhengke Zhang, Kai-Yew Lum
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Numerical Simulation of Bird Strike on a S-Shaped Stealth Inlet

2019
Bird strike is a great threat to the safety of aircraft. The bird’s collision with the aero engine may lead to engine power loss, fires. Large blade debris in high-speed produced by the collision could even cause the disaster of aircraft crush. In this paper, the simulations of the bird striking a S-shaped inlet and blades were carried out to study the
Kun-yang Li, Xiang-hua Jiang, Da-sheng Wei   +2 more
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Calculation of External and Internal Transonic Flow Field of a Three-Dimensional S-Shaped Inlet

Volume 1: Aircraft Engine; Turbomachinery, 1985
A mixed finite difference method for calculating the external and internal transonic flow field around an s-shaped inlet is presented. Starting from the velocity potential equation and using Cartesian mesh and mixed finite difference schemes, the authors have obtained a system of finite difference equations and solved them with the aid of alternating ...
Shen Huili, Luo Shijun, Ji Minggang, Xing Zongwen, Zhu Xin, Han Xifeng   +5 more
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Aerodynamic and Stealth Characteristics Analysis for a New Type of S-Shaped Inlet With Inner Bulge

Volume 1: Aircraft Engine; Fans and Blowers, 2020
Abstract Searching for the optimal solution of the comprehensive performance of the aerodynamic and stealth characteristics of the aircraft inlet has become the trend of the development of the aircraft inlet due to the rapid development of radar detection technology.
Saile Zhang, Xufei Wang, Yubo He, Qingzhen Yang, Xinyu Zhang   +4 more
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Blowing–Suction Control in S-Shaped Inlet and Its Impact on Fan-Stage Performance

AIAA Journal, 2019
This paper presents a numerical investigation of flow control with blowing and suction in the whole structure consisting of an aggressive S-shaped air intake accompanied by a downstream fan stage.
Liu Lei, Chen Fu, Luo Kun, Pan Huachen, Qin Huawei, Wang Fang, Zhou Maoying, Tian Xiaoqing   +7 more
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Flowfield of an S-Shaped Inlet with High Boundary-Layer Ingestion Fraction

Journal of Aircraft
The efficiency of boundary-layer ingestion (BLI) propulsion systems is closely related to the amount of ingested boundary layer. A high BLI fraction requires low propulsor flow power. In this paper, the internal flow characteristics and performance of an S-shaped inlet with a high BLI, up to 83.8% of the inlet capture height, are explored in detail ...
Kun Wang, He-xia Huang, Lei Liu, Hui-jun Tan, Gao-jie Zheng, Xue-bin Tang   +5 more
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Sub-system level numerical simulation investigation of the S-shaped inlet and the rear subsonic fan-stage

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2017
For investigating the evolution process of a half flush-mounted air intake exit distortion in the downstream flow field and also its effects on the fan-stage performance, sub-system level numerical simulation of the whole structure of the air intake and the fan-stage was carried out.
Liu Lei, Pan Hua-Chen, Mu Jie-Gang, Chen Fu, Song Yan-Ping, Tian Xiao-Qing   +5 more
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Approach for an Optimized Evaluation of Pressure and Swirl Distortion in S-Shaped Engine Inlet Con[|#12#|]figurations

50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2014
Current research at the Institute of Jet Propulsion focuses on the design and optimization of s-shaped engine inlet configurations. The distorted flow caused within such inlet ducts should be limited to ensure an optimal performance, stability, and durability of the engines compressor system.
Ruud Rademakers, Thomas Kächele, Stefan Bindl, Reinhard Niehuis   +3 more
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