Subjects -> AERONAUTICS AND SPACE FLIGHT (Total: 120 journals)
 Showing 1 - 30 of 30 Journals sorted alphabetically Acta Astronautica       (Followers: 485) Advances in Aerospace Engineering       (Followers: 67) Advances in Aerospace Science and Technology       (Followers: 7) Advances in Astronautics Science and Technology Advances in Space Research       (Followers: 454) Aeronautical Journal, The       (Followers: 11) Aerospace       (Followers: 58) Aerospace Medicine and Human Performance       (Followers: 15) Aerospace Science and Technology       (Followers: 423) Aerospace Scientific Journal       (Followers: 16) Aerospace Systems       (Followers: 3) Aerospace technic and technology       (Followers: 2) Aerotecnica Missili & Spazio : Journal of Aerospace Science, Technologies & Systems AIAA Journal       (Followers: 1178) Air Force Magazine       (Followers: 11) Air Medical Journal       (Followers: 8) Annual of Navigation       (Followers: 22) Artificial Satellites       (Followers: 23) ASTRA Proceedings       (Followers: 2) Astrodynamics       (Followers: 1) Aviation       (Followers: 15) Aviation Advances & Maintenance       (Followers: 3) Aviation in Focus - Journal of Aeronautical Sciences       (Followers: 10) Aviation Psychology and Applied Human Factors       (Followers: 27) Aviation Week       (Followers: 437) Canadian Aeronautics and Space Journal       (Followers: 33) CEAS Aeronautical Journal       (Followers: 29) Chinese Journal of Aeronautics       (Followers: 20) Ciencia y Poder Aéreo       (Followers: 2) Civil Aviation High Technologies       (Followers: 5) Control Systems       (Followers: 317) Cosmic Research       (Followers: 4) COSPAR Colloquia Series       (Followers: 11) Egyptian Journal of Remote Sensing and Space Science       (Followers: 24) Elsevier Astrodynamics Series       (Followers: 12) Fatigue of Aircraft Structures       (Followers: 15) Frontiers in Astronomy and Space Sciences       (Followers: 12) Gyroscopy and Navigation       (Followers: 255) IEEE Aerospace and Electronic Systems Magazine       (Followers: 275) IEEE Journal on Miniaturization for Air and Space Systems       (Followers: 2) IEEE Transactions on Aerospace and Electronic Systems       (Followers: 382) IEEE Transactions on Circuits and Systems I: Regular Papers       (Followers: 39) International Journal of Aeroacoustics       (Followers: 39) International Journal of Aerodynamics       (Followers: 36) International Journal of Aeronautical and Space Sciences       (Followers: 2) International Journal of Aerospace Engineering       (Followers: 81) International Journal of Aerospace Psychology       (Followers: 23) International Journal of Aerospace Sciences       (Followers: 31) International Journal of Applied Geospatial Research       (Followers: 7) International Journal of Aviation Management       (Followers: 8) International Journal of Aviation Technology, Engineering and Management       (Followers: 7) International Journal of Aviation, Aeronautics, and Aerospace       (Followers: 4) International Journal of Crashworthiness       (Followers: 12) International Journal of Micro Air Vehicles       (Followers: 11) International Journal of Satellite Communications Policy and Management       (Followers: 13) International Journal of Space Science and Engineering       (Followers: 11) International Journal of Space Structures       (Followers: 17) International Journal of Space Technology Management and Innovation       (Followers: 10) International Journal of Sustainable Aviation       (Followers: 5) International Journal of Turbo and Jet-Engines       (Followers: 6) Investigación Pecuaria       (Followers: 3) Journal of Aerodynamics       (Followers: 17) Journal of Aeronautical Materials       (Followers: 9) Journal of Aeronautics & Aerospace Engineering       (Followers: 28) Journal of Aerospace Engineering       (Followers: 68) Journal of Aerospace Engineering & Technology       (Followers: 16) Journal of Aerospace Information Systems       (Followers: 20) Journal of Aerospace Information Systems       (Followers: 32) Journal of Aerospace Technology and Management       (Followers: 7) Journal of Aircraft       (Followers: 338) Journal of Aircraft and Spacecraft Technology       (Followers: 8) Journal of Airline and Airport Management       (Followers: 12) Journal of Astrobiology & Outreach       (Followers: 3) Journal of Aviation Technology and Engineering       (Followers: 11) Journal of Aviation/Aerospace Education & Research       (Followers: 2) Journal of Engineering and Technological Sciences       (Followers: 1) Journal of Guidance, Control, and Dynamics       (Followers: 204) Journal of KONBiN       (Followers: 3) Journal of Navigation       (Followers: 279) Journal of Propulsion and Power       (Followers: 608) Journal of Space Safety Engineering       (Followers: 7) Journal of Space Weather and Space Climate       (Followers: 27) Journal of Spacecraft and Rockets       (Followers: 771) Journal of Spatial Science       (Followers: 3) Journal of the American Helicopter Society       (Followers: 7) Journal of the Astronautical Sciences       (Followers: 8) Journal of the Australasian Society of Aerospace Medicine       (Followers: 1) Journal of Wind Engineering and Industrial Aerodynamics       (Followers: 16) Life Sciences in Space Research       (Followers: 3) MAD - Magazine of Aviation Development       (Followers: 2) Mekanika : Jurnal Teknik Mesin i       (Followers: 1) Microgravity Science and Technology       (Followers: 2) New Space       (Followers: 6) Nonlinear Dynamics       (Followers: 19) npj Microgravity       (Followers: 3) Open Aerospace Engineering Journal       (Followers: 1) Population Space and Place       (Followers: 9) Problemy Mechatroniki. Uzbrojenie, lotnictwo, inżynieria bezpieczeństwa / Problems of Mechatronics. Armament, Aviation, Safety Engineering       (Followers: 3) Proceedings of the Human Factors and Ergonomics Society Annual Meeting       (Followers: 16) Proceedings of the Institution of Mechanical Engineers Part G: Journal of Aerospace Engineering       (Followers: 45) Progress in Aerospace Sciences       (Followers: 80) Propulsion and Power Research       (Followers: 67) REACH - Reviews in Human Space Exploration       (Followers: 5) Research & Reviews : Journal of Space Science & Technology       (Followers: 17) RocketSTEM       (Followers: 6) Russian Aeronautics (Iz VUZ)       (Followers: 24) Science and Education : Scientific Publication of BMSTU       (Followers: 1) Space and Polity       (Followers: 4) Space Policy       (Followers: 30) Space Research Today       (Followers: 48) Space Safety Magazine       (Followers: 51) Space Science International       (Followers: 192) Space Science Reviews       (Followers: 97) SpaceNews       (Followers: 825) Spatial Information Research       (Followers: 1) Technical Soaring       (Followers: 1) Transport and Aerospace Engineering       (Followers: 1) Transportmetrica A : Transport Science       (Followers: 8) Unmanned Systems       (Followers: 5) Вісник Національного Авіаційного Університету       (Followers: 2)
Similar Journals
 Aeronautical Journal, TheNumber of Followers: 11      Hybrid journal (It can contain Open Access articles) ISSN (Print) 0001-9240 - ISSN (Online) 2059-6464 Published by Cambridge University Press  [395 journals]
• AER volume 125 issue 1284 Cover and Front matter
• PubDate: 2021-02-01T00:00:00.000Z
DOI: 10.1017/aer.2020.140
Issue No: Vol. 125, No. 1284 (2021)

• AER volume 125 issue 1284 Cover and Back matter
• PubDate: 2021-02-01T00:00:00.000Z
DOI: 10.1017/aer.2020.141
Issue No: Vol. 125, No. 1284 (2021)

• An estimation method for the fuel burn and other performance
characteristics of civil transport aircraft in the cruise. Part 1
fundamental quantities and governing relations for a general atmosphere
• Authors: D.I.A. Poll; U. Schumann
Pages: 257 - 295
Abstract: This paper is one of a series addressing the need for simple, yet accurate, methods for the estimation of cruise fuel burn and other important aircraft performance parameters. Here, a previously published, constant Reynolds number model for turbofan-powered, civil transport aircraft is extended to include Reynolds number effects. Provided the variation of temperature with pressure is known, the method is applicable to flight in any atmospheric conditions. For a given aircraft, cruising in a given atmosphere, there is a single Mach number and Flight Level pair, at which the fuel burn per unit distance travelled through the air has an absolute minimum value. Both these quantities depend upon the Reynolds number, which, in turn, depends upon the aircraft weight and the atmospheric vertical temperature profile. Simple, explicit expressions are developed for all parameters at the optimum condition. These are shown to be in close agreement with numerical solutions of the governing equations. It is found that typical operational mass and temperature profile variations can change cruise fuel burn rate by several percent. In the International Standard Atmosphere, when the speed and altitude deviate from their optimum values, the fuel burn penalty is reduced slightly relative to the constant Reynolds number case. By way of example, the method is used to estimate the minimum fuel, speed-versus-height trajectory for cruise in a realistic atmosphere.For each aircraft, cruise fuel burn is found to be governed by six independent parameters. All are constants. Two are simple, involving only size and weight, whereas four are complex and must be determined by either theoretical, or empirical, means. The estimation of these quantities will be considered in Part 2.
PubDate: 2021-02-01T00:00:00.000Z
DOI: 10.1017/aer.2020.62
Issue No: Vol. 125, No. 1284 (2021)

• An estimation method for the fuel burn and other performance
characteristics of civil transport aircraft during cruise: part 2,
determining the aircraft’s characteristic parameters
• Authors: D.I.A. Poll; U. Schumann
Pages: 296 - 340
Abstract: A simple yet physically comprehensive and accurate method for the estimation of the cruise fuel burn rate of turbofan powered transport aircraft operating in a general atmosphere was developed in part 1. The method is built on previously published work showing that suitable normalisation reduces the governing relations to a set of near-universal curves. However, to apply the method to a specific aircraft, values must be assigned to six independent parameters and the more accurate these values are the more accurate the estimates will be. Unfortunately, some of these parameters rarely appear in the public domain. Consequently, a scheme for their estimation is developed herein using basic aerodynamic theory and data correlations. In addition, the basic method is extended to provide estimates for cruise lift-to-drag ratio, engine thrust and engine overall efficiency. This step requires the introduction of two more independent parameters, increasing the total number from six to eight. An error estimate and sensitivity analysis indicates that, in the aircraft’s normal operating range and using the present results, estimates of fuel burn rate are expected to be in error by no more than 5% in the majority of cases. Initial estimates of the characteristic parameters have been generated for 53 aircraft types and engine combinations and a table is provided.
PubDate: 2021-02-01T00:00:00.000Z
DOI: 10.1017/aer.2020.124
Issue No: Vol. 125, No. 1284 (2021)

• ${\textbf{\textit{H}}}_{\boldsymbol{\infty}}$+preview+control&rft.title=Aeronautical+Journal,+The&rft.issn=0001-9240&rft.date=2021&rft.volume=125&rft.spage=341&rft.epage=364&rft.aulast=Khalil&rft.aufirst=A.&rft.au=A.+Khalil&rft.au=N.+Fezans&rft_id=info:doi/10.1017/aer.2020.85">Gust load alleviation for flexible aircraft using discrete-time
${\textbf{\textit{H}}}_{\boldsymbol{\infty}}$ preview control
• Authors: A. Khalil; N. Fezans
Pages: 341 - 364
Abstract: Turbulence and gusts cause variations in the aerodynamic forces and moments applied to the structure of aircraft, resulting in passenger discomfort and dynamic loads on the structure that it must be designed to support. By designing Gust Load Alleviation (GLA) systems, two objectives can be achieved: first, realizing higher passenger comfort; and second, reducing the dynamic structural loads, which allows the design of lighter structures. In this paper, a methodology for designing combined feedback/feedforward GLA systems is proposed. The methodology relies on the availability of a wind profile ahead of the aircraft measured by a Doppler LIDAR sensor, and is based on $H_{\infty}$-optimal control techniques and a discrete-time preview-control problem formulation. Moreover, to allow design trade-offs between those two objectives (to achieve design flexibility) as well as to allow specification of robustness criteria, a variant of the problem using multi-channel $H_{\infty}$-optimal control techniques is introduced. The methodology developed in this paper is intended to be applied to large aircraft, e.g. transport aircraft or business jets. The simulation results show the effectiveness of the proposed design methodology in accounting for the measured wind profile to achieve the two mentioned objectives, while ensuring both design flexibility and controller robustness and optimality.
PubDate: 2021-02-01T00:00:00.000Z
DOI: 10.1017/aer.2020.85
Issue No: Vol. 125, No. 1284 (2021)

• Uncertainty analysis and robust shape optimisation for laminar flow
aerofoils
• Authors: J. Hollom; N. Qin
Pages: 365 - 388
Abstract: Uncertainty in the critical amplification factor ($N_{cr}$) of the $e^N$ transition model is used to approximate the uncertainty in the surface and flow quality of natural laminar flow (NLF) aerofoils. The uncertainty in $N_{cr}$ is represented by a negative half-normal probability distribution that descends from the largest $N_{cr}$ achievable with an ideal surface and flow quality. The uncertainty in various aerodynamic coefficients due to the uncertainty in $N_{cr}$ is quantified using the weighted mean and standard deviation of flow solutions run at different $N_{cr}$ values. The uncertainty in the aerofoil performance is assessed using this methodology. It is found that the standard deviation of the aerofoil performance due to the uncertainty in $N_{cr}$ is largest when the transition location is most sensitive to changes in the lift coefficient at the ideal $N_{cr}$. Robust shape optimisation is also carried out to improve the mean performance and reduce the standard deviation of the performance with uncertainty in $N_{cr}$. This is found to be effective at producing aerofoils with a larger amount of laminar flow that are less sensitivity to uncertainty in $N_{cr}$. A trade-off is observed between the mean performance and the standard deviation of the performance. It is also found that reducing the standard deviation of the performance at one Mach n...
PubDate: 2021-02-01T00:00:00.000Z
DOI: 10.1017/aer.2020.63
Issue No: Vol. 125, No. 1284 (2021)

• Research on head cooling of high-speed aircraft by liquid nitrogen
• Authors: H.X. Xiong; S.H. Yi, H.L. Ding, L. Jin, J.J. Huo
Pages: 389 - 409
Abstract: In the development process of high-speed aircraft, the head of the aircraft is subject to high temperatures and high speed flows, supporting the maximum heat flow and thus requiring a reliable cooling system. A new type of head cooling system is proposed herein. An internal flow channel model of the heat transfer in a ball head made from high-temperature alloy steel is constructed, then an experimental platform is built to carry out relevant experiments on the performance of this cooling system. Firstly, the influence of different experimental conditions on the cooling efficiency of the ball head is studied. For given liquid-nitrogen supply pressure, a higher heating heat flux density on the outer surface of the ball head corresponds to higher cooling efficiency. Then, the vaporisation effect under different experimental conditions is evaluated using temperature sensors at the inlet and outlet of the ball head heat exchange channel in combination with images of the visualised glass tube. It is found that liquid nitrogen can vaporise completely when flowing through the heat exchange channel. The characteristics of the heating effect and liquid nitrogen injection for the ball head were evaluated using an infrared camera. Finally, under different experimental conditions of liquid-nitrogen supply pressure, it is found that liquid nitrogen can vaporise completely in each case, and the total temperature of the vaporised nitrogen is about 300K. It can thus be collected as a secondary gas source.
PubDate: 2021-02-01T00:00:00.000Z
DOI: 10.1017/aer.2020.86
Issue No: Vol. 125, No. 1284 (2021)

• A semi-analytical approach for flutter analysis of a high-aspect-ratio
wing
• Authors: R.F. Latif; M.K.A. Khan, A. Javed, S.I.A. Shah, S.T.I. Rizvi
Pages: 410 - 429
Abstract: We present a hybrid, semi-analytical approach to perform an eigenvalue-based flutter analysis of an Unmanned Aerial Vehicle (UAV) wing. The wing has a modern design that integrates metal and composite structures. The stiffness and natural frequency of the wing are calculated using a Finite Element (FE) model. The modal parameters are extracted by applying a recursive technique to the Lanczos method in the FE model. Subsequently, the modal parameters are used to evaluate the flutter boundaries in an analytical model based on the p-method. Two-degree-of-freedom bending and torsional flutter equations derived using Lagrange’s principle are transformed into an eigenvalue problem. The eigenvalue framework is used to evaluate the stability characteristics of the wing under various flight conditions. An extension of this eigenvalue framework is applied to determine the stability boundaries and corresponding critical flutter parameters at a range of altitudes. The stability characteristics and critical flutter speeds are also evaluated through computational analysis of a reduced-order model of the wing in NX Nastran using the k- and pk-methods. The results of the analytical and computational methods are found to show good agreement with each other. A parametric study is also carried out to analyse the effects of the structural member thickness on the wing flutter speeds. The results suggest that changing the spar thickness contributes most significantly to the flutter speeds, whereas increasing the rib thickness decreases the flutter speed at high thickness values.
PubDate: 2021-02-01T00:00:00.000Z
DOI: 10.1017/aer.2020.71
Issue No: Vol. 125, No. 1284 (2021)

• Effect of chordwise deformation on propulsive performance of flapping
wings in forward flight
• Authors: T. Lin; W. Xia, S. Hu
Pages: 430 - 451
Abstract: Lack of flexibility limits the performance enhancement of man-made flapping wing Micro Air Vehicles (MAVs). Active chordwise deformation (bending) is introduced into the flapping wing model at low Reynolds number of Re = 200 in the present study. The lattice Boltzmann method with immersed boundary is adopted in the numerical simulation. The effects of the bending amplitude, bending frequency and phase lag between bending and flapping on the propulsive performance are analysed. The numerical results show that all the chordwise deformation parameters including the bending amplitude, bending frequency and phase lag have a great influence on the flow field, Leading-Edge Vortex (LEV), Trailing-Edge Vortex (TEV) and previous Leading-Edge Vortex (pLEV) of the deformable flapping wing, which leads to the variation of the propulsive performance. With decreasing bending amplitude and increasing bending frequency, both the thrust and energy dissipation coefficients increase. The highest thrust coefficient and highest energy dissipation coefficient occur at a phase lag of 180°. On the other hand, strong dependence of the propulsive efficiency on the vortex tangle is found. The highest propulsive efficiency is obtained for the present model at a dimensionless bending amplitude of 0.2, bending frequency of 0.7Hz, and phase lag of 0°.
PubDate: 2021-02-01T00:00:00.000Z
DOI: 10.1017/aer.2020.72
Issue No: Vol. 125, No. 1284 (2021)

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