Results 21 to 30 of about 88,513 (307)
A Computer Software Application for the Design and Simulation of Unguided Rockets [PDF]
Problemy Mechatroniki, 2020 The paper presents a specification and performance characteristics of a computer software application developed for rocket design engineering. The methodology for the determination of aerodynamic characteristics by the software application is based on ...
Krzysztof MOTYL, Filip MUSIAŁEK
doaj +1 more source
Investigation on Stability and Galloping Characteristics of Iced Quad Bundle Conductor
Journal of Applied Fluid Mechanics, 2021 The stability and galloping characteristics of iced quad bundle conductor are studied in this paper. Firstly, the aerodynamic coefficients of iced quad bundle conductor and single conductor under four different working conditions are obtained by wind ...
X. Liu, G. Min, C. Sun, M. Cai
doaj
Energies, 2022 The present study established two different models based on the convolutional neural network (CNN) and the encoder–decoder (ED) to predict the characteristics of the flow and heat transfer around the NACA sections.
Janghoon Seo, Hyun-Sik Yoon, Min-Il Kim
doaj +1 more source
Smolyak-Grid-Based Flutter Analysis with the Stochastic Aerodynamic Uncertainty
Discrete Dynamics in Nature and Society, 2014 How to estimate the stochastic aerodynamic parametric uncertainty on aeroelastic stability is studied in this current work. The aerodynamic uncertainty is more complicated than the structural one, and it takes more significant effect on the flutter ...
Yuting Dai, Chao Yang
doaj +1 more source
Calculation accuracy of wing aerodynamic parameters for a low speed aircraft
Geodesy and Cartography, 2012 The article presents the analysis results of calculation error for a swept wing of NACA4415 airfoil. Coefficients of aerodynamic forces for this wing were calculated by means of a vortex step method including special algorithm to account non-linear ...
Egidijus Pakalnis, Jonas Stankūnas
doaj +1 more source
Investigation of wheelhouse shapes on the aerodynamic characteristics of a generic car model
Advances in Mechanical Engineering, 2021 As vehicle speed increases, the aerodynamic drag reduction becomes increasingly significant. The aim of this paper is to find out the effects of the wheelhouse shapes on the aerodynamics of an Ahmed body with a 35 slant angle. In this paper, based on the
Haichao Zhou +4 more
doaj +1 more source
On the Self-Calibration of Aerodynamic Coefficients in Vehicle Dynamic Model-Based Navigation
Drones, 2020 The performance of vehicle dynamic model (VDM)-based navigation largely depends on the accurate determination of aerodynamic coefficients that are unknown a priori.
Gabriel Laupré, Jan Skaloud
doaj +1 more source
Dynamic modelling of parafoil system based on aerodynamic coefficients identification
Automatika, 2023 This study focuses on the identification of aerodynamic coefficients through airdrop data based on a known six-degree-of-freedom (6-DOF) model. Since the precise modelling of the parafoil system is a prerequisite for design of guidance, navigation and ...
Ligan Zhao +3 more
doaj +1 more source
Радіоелектронні і комп'ютерні системи, 2019 Estimations of the flight vehicles aerodynamic coefficients through the theoretical, numerical, wind tunnel and flight-test methods have always errors and uncertainties.
Фархади Рахман Мохаммади +1 more
doaj +1 more source
Quantification of airfoil geometry-induced aerodynamic uncertainties - comparison of approaches [PDF]
, 2016 Uncertainty quantification in aerodynamic simulations calls for efficient numerical methods since it is computationally expensive, especially for the uncertainties caused by random geometry variations which involve a large number of variables. This paper
Litvinenko, Alexander +3 more
core +2 more sources