Results 1 to 10 of about 162,037 (197)

Noise prediction research of a scaled turboprop aircraft

open access: yesXibei Gongye Daxue Xuebao, 2021
Aerodynamic noise level has become an important performance index of civil aircraft, and it is drawing more and more attention. Most airframe noise research based on CFD method is aimed at aircraft individual parts at present, while lack of noise ...
Song Minhua   +5 more
doaj   +1 more source

Research on flight load surrogate model using neural networks

open access: yesHangkong gongcheng jinzhan, 2023
In aircraft structural strength design, flight load analysis is required, but the load analysis cycle is long,so it is necessary to study more efficient and accurate flight load analysis methods to shorten the load design cycle.The horizontal tail of a ...
PENG Yuzhuo, TANG Zhen, XIAO Qizhi
doaj   +1 more source

Study on Aerodynamic Interference of Tanker Aircraft on Receiver Aircraft based on N-S Equations

open access: yesHangkong gongcheng jinzhan, 2022
The wake flow field of tanker aircraft can produce the complex flow interference on receiver aircraft during aerial refueling.The computational fluid dynamics(CFD)method based on Navier-Stokes(N-S)equations is used to analyze the wake flow field of the ...
GENG Yansheng   +3 more
doaj   +1 more source

High-dimensional aerodynamic data modeling using a machine learning method based on a convolutional neural network

open access: yesAdvances in Aerodynamics, 2022
Modeling high-dimensional aerodynamic data presents a significant challenge in aero-loads prediction, aerodynamic shape optimization, flight control, and simulation.
Bo-Wen Zan   +4 more
doaj   +1 more source

Efficient Global Aerodynamic Shape Optimization of a Full Aircraft Configuration Considering Trimming

open access: yesAerospace, 2023
Most existing aerodynamic shape optimization (ASO) studies do not take the balanced pitching moment into account and thus the optimized configuration has to be trimmed to ensure zero pitching moment, which causes additional drag and reduces the benefit ...
Kai Wang   +3 more
doaj   +1 more source

Laminar-turbulent transition characteristics of a 3-D wind turbine rotor blade based on experiments and computations [PDF]

open access: yesWind Energy Science, 2020
Laminar-turbulent transition behavior of a wind turbine blade section is investigated in this study by means of field experiments and 3-D computational fluid dynamics (CFD) rotor simulations.
Ö. S. Özçakmak   +3 more
doaj   +1 more source

Review of the Study on High-angle-of-attack Flight Problems of Aircraft

open access: yesHangkong gongcheng jinzhan, 2022
The close combat in air battle is still inevitable in future.The accurate and agile nose-pointing capability at high-angle-of-attack is still essential and significant for fighter to survive and gain air superiority.According to the high-angle-of-attack ...
ZHANG Zijun   +3 more
doaj   +1 more source

A High Efficient Fluid-Structure Interaction Method for Flutter Analysis of Mistuned [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
The time cost is very high by direct fluid-structure interaction method for mistuned bladed disk structures, so aerodynamic loads generally are ignored or treated as small perturbations in traditional flutter analysis.

doaj   +1 more source

Numerical simulation study on dynamic stall of airfoil controlled by combined blow-suction

open access: yesHangkong gongcheng jinzhan, 2023
One of the key problems to improve the aerodynamic characteristics of airfoil is to solve the dynamic stall.This paper presents a method to control the dynamic stall of airfoil by using the combination of leading-edge suction and trailing edge suction ...
JIA Tianhao   +3 more
doaj   +1 more source

An improved WENO-Z scheme with symmetry-preserving mapping

open access: yesAdvances in Aerodynamics, 2020
Since the classical weighted essentially non-oscillatory (WENO) scheme is proposed, various improved versions have been developed, and a typical one is the WENO-Z scheme.
Zheng Hong, Zhengyin Ye, Kun Ye
doaj   +1 more source

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