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    航空学报英文版是几区 航空学报英文版模板

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    Chinese Journal of Aeronautics 28 (2015) xx-xx

    Contents lists available at ScienceDirect

    Chinese Journal of Aeronautics

    journal homepage: www.elsevier .com/locate/cja

    The primary submission should be in two format :single-column or two columns.

    (Title usually falls within 3 lines. All lexical words, as well as prepositions over 5 letters

    (including 5) should be initials in capital.)

    Generation of dynamic grids and computation of unsteady

    transonic flows around assemblies

    (Author affiliations should be listed according to the name order under the paper title.

    Chinese authors should put the family name first. The corresponding author should be

    marked with “*” on the top right.)

    LU Zhilianga,*, John SMITHb

    b Department of Aerodynamics, Nanjing Aeronautical Institute, Nanjing 210016, China School of Electronic and Information Engineering, Duke University, Durham NC 27708, USA

    a

    Received 5 May 2009; revised 4 June 2009; accepted 16 September 2009

    (Delete author name & affiliation when submitting the manuscript) Abstract

    (Abstract should be about 150-200 words which can conclude the whole content of the paper (including purpose, method, results and conclusion). Equations, figures and tables, as well as references are not sup-posed to appear in this part. When abbreviation is firstly used, it should contain the full name with its ab-bre viation included in parentheses, such as “signal to noise ratio (SNR)”. Do NOT use the first person as subject. Do NOT repeat the title as the first sentence of the abstract. Simple sentence and active voice are preferred, and verb should be close to the subject.)

    Low service ability of an airfield area causes frequent air traffic congestion and flight delays at busy airports. The airport system calls for capacity and efficiency improvements urgently to relieve the current congested situation. In this work, an optimization approach for the collaborative operating modes of multi-runway systems is proposed to balance the demand and capacity. Runway operating modes are classified in detail taking into consideration the air-port layout, air traffic characteristics, weather conditions and other factors comprehensively. Based on the theory of runway capacity envelope, a corresponding optimization model is established by introducing the capacity loss coef-ficient which objectively reflects the mode switching characteristics. Then an elitist non-dominating sorting genetic algorithm is designed combined with the multi-objective optimization theory, Compared with the single runway mode, the combined runway modes bring about a striking optimization effect which results in a 38.1% reduction in the cost of flight delays and a 46.4% decrease in the quantity of adjusted flights. The approach provided can signifi-cantly enhance collaborative operating efficiency of a multi-runway system, and effectively improve air traffic punc-tuality. Keywords : Transonic flow; Unsteady flow; Full-potential equation; Assembly (about 5-8 words separated with “;”; u se small letters except technical terms. Abbreviations should contain full name with abbreviation in-

    1. Introduction

    (Begin each paragraph with an equal indentation of two typing spaces.)

    The computation method of unsteady transonic flow based on N-S equations should be best accurate, but to three-dimensional complex problems, it can be achieved

    only on large computers, and moreover, the results are not ideal sometimes. 1 A viscous/inviscid interaction method is an applicable one and the computation time can be reduced by two orders.

    (Equations, figures and tables are usually not supposed to appear in this part.)

    2. Computation scheme

    2.1. Governing equation

    2.1.1. Principle

    The unsteady full-potential equation written in a body fitted coordinate system is given by

    (ρJ ) τ+(ρU J ) ξ+(ρV J ) η+(ρW J ) ζ=0 (1)

    where ρ is density, U , V, and W are the contravariant velocity components in the ξ, η, and ζ directions,τmeans time, and J is Jacobian.

    Eq. (1) is solved by the time-accurate approximate factorization algorithm and internal Newton iterations; 2 body conditions and wake conditions are implicit embedded.

    2.2. Generation of grids

    Taking the incompressible potential flow round a cylinder for example, the stream function is ⎛a 2

    ψ=V ∞ r -r ⎝⎫⎪sin θ

    ⎭(2)

    where a is radius, and V ∞ the velocity of free stream. Magnifying its radius to a +ε.

    3. Presentation of results

    3.1. Artwork/Figure

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    Fig. 1. Comparison between computation result and experimental data24 for temperature distribution of inner wall of nozzle.

    Table 1 CPU time ratio of each term.

    Computational term Flow field Solid temperature field

    Species concentration field

    Radiation transfer/energy field CPU time (%) 32.6 2.2 4.3 60.9

    4. Conclusions

    (Conclusion should be summarized in points without tedious description of background, method, etc.)

    (1) A rapid method of the generation of boundary-fitted dynamic grids is developed in this paper, and the method of Viscous/Inviscid Interaction is used to compute the unsteady aerodynamic forces on wing/missiles and wing/body with control surfaces.

    (2) The computation results are in agreement with experimental data.

    Acknowledgements

    This study was co-supported by the Open Fund of Key Laboratory of Power Research of China (No. *****) and the National Natural Science Foundation of China (Nos. ****** and ******).

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    Harnden P, Joffe JK, Jones WG, editors. Germ cell tumours V. Proceedings of the 5th germ cell tumour conference; 2001 Sep 13-15; Leeds, UK. New York: Springer; 2002.

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    Christensen S, Oppacher F. An analysis of Koza"s computational effort statistic for genetic programming. In: Foster JA, Lutton E, Miller J, Ryan C, Tettamanzi AG, editors. Genetic programming. EuroGP 2002: Proceedings of the 5th European conference on genetic programming; 2002 Apr 3-5; Kinsdale, Ireland. Berlin: Springer; 2002. p. 182-91. Scientific or technical report

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    Abood S. Quality improvement initiative in nursing homes: the ANA acts in an advisory role. Am J Nurs [Internet]. 2002 Jun [cited 2002 Aug 12]; 102(6): 51-9. Available from: http://www.nursingworld.org/AJN/2002/june/Wawatch.htmArticle

    Article not in English

    Liu JY . An improved SST turbulence model for hypersonic flows. Acta Aeronautica et Astronautica Sinica 2012;33(12):2192-201 [Chinese].

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    (In principle, the corresponding author‟s biography is essential and others are not and the letters of family name are all in capital form.)

    LU Zhiliang received the B.S. and M.S. degrees in mechanical engineering from Nanjing Aeronautical Institute in 1984 and 1987 respectively, and then became a teacher there. His main research interests are ….

    E-mail: lulu213@yahoo.com.cn

    John SMITH is a Ph.D. student at school of automation, Duke University. He received his B.S. degree from Wuhan University in 2008. His area of research includes…

    E-mail: wuhanujogn@sina.com

    Alice S.L. ZIONBER is a professor and Ph.D. supervisor at college of mechanical engineering, Cambridge University, Cam-bridge, U.K. She received the Ph.D. degree from the same university in 1970. Her current research interests are…

    E-mail: lzlsax@jlonline.com

    Appendix

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