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Numerical simulation of thermal incompressible fluid flow using Lattice Boltzmann's method 热不可压缩流体流动的格子玻尔兹曼方法数值模拟
2013 International Conference on Aerospace Science & Engineering (ICASE) Pub Date : 2013-08-01 DOI: 10.1109/ICASE.2013.6785545
A. Mufti, R. Basit, M. Basit
{"title":"Numerical simulation of thermal incompressible fluid flow using Lattice Boltzmann's method","authors":"A. Mufti, R. Basit, M. Basit","doi":"10.1109/ICASE.2013.6785545","DOIUrl":"https://doi.org/10.1109/ICASE.2013.6785545","url":null,"abstract":"Objective of this paper is to numerically simulate thermal fluid flow using Lattice Boltzmann's method. D2Q9 model is used for simulation of 2D thermal fluid flow. Different thermal cases such as thermal Poisseuille flow, thermal couette flow are studied, along with conduction in metals with or without heat generation source within metal. Results produced from Lattice Boltzmann's method are compared with analytical solutions or with some other CFD technique (Fluent) results. On comparison one can say that Lattice Boltzmann's method is a remarkable tool for simulating and solving computational fluid dynamics problems.","PeriodicalId":155651,"journal":{"name":"2013 International Conference on Aerospace Science & Engineering (ICASE)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124789753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficiency of classification techniques for sachen and rupal glaciers variation during 1972–2010 1972-2010年sachen和rupal冰川变化分类技术的有效性
2013 International Conference on Aerospace Science & Engineering (ICASE) Pub Date : 2013-08-01 DOI: 10.1109/ICASE.2013.6785569
S. Muhammad, C. Gul, J. Muneer, M. Waqar
{"title":"Efficiency of classification techniques for sachen and rupal glaciers variation during 1972–2010","authors":"S. Muhammad, C. Gul, J. Muneer, M. Waqar","doi":"10.1109/ICASE.2013.6785569","DOIUrl":"https://doi.org/10.1109/ICASE.2013.6785569","url":null,"abstract":"Remote Sensing and GIS has been used effectively to analyze glaciers dynamics. In this paper a comparative analysis of supervised, knowledge based and object based classification techniques have been carried out to map debris and clean ice of sachen and rupal glaciers. Assessment of glaciers temporal variation plays an important role to identify the rate of retreat and advance over a certain period of time. Sachen and Rupal glaciers lying in astore valley have been used as an input for analysis. The area of debris cover and clean ice derived from the classification used have been visualized and compared with the reference classification. Reference classification, derived from standard classification technique further refined by manual editing to obtain highly accurate results. The results from this classification show that Sachen and Rupal glaciers have lost around 2% and 13% of their glaciated area respectively over the last thirty years.","PeriodicalId":155651,"journal":{"name":"2013 International Conference on Aerospace Science & Engineering (ICASE)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131850748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Use of fourier transformations and wavelets for satellite image processing 傅里叶变换和小波在卫星图像处理中的应用
2013 International Conference on Aerospace Science & Engineering (ICASE) Pub Date : 2013-08-01 DOI: 10.1109/ICASE.2013.6785559
Syed Roshaan Ali, S. Pervaz
{"title":"Use of fourier transformations and wavelets for satellite image processing","authors":"Syed Roshaan Ali, S. Pervaz","doi":"10.1109/ICASE.2013.6785559","DOIUrl":"https://doi.org/10.1109/ICASE.2013.6785559","url":null,"abstract":"Image processing mainly comprises of operations based on either the pixel values or the operations involving the values of a certain neighbourhood around the pixel, in latter the computations become extensive and the values are affected by the surroundings spatial features. However another approach that converts the image into its frequency components allows visualization and computations based upon spatial frequency rather than the spatial contingency. This approach yields some useful possibilities along with the apparent difficulties in visualizing the frequency domain. Fourier analysis and wavelet transforms are available in most image processing software allowing to be applied in specified ways e.g. Fourier filtering, wavelet compressions, wavelet resolution merges. In this study the capabilities of important image processing software in this context is discussed along with a few implementations of the techniques to de-stripe data, compress data, merge data, visualize data. The implementation is found to be rather difficult to customize for a particular application and the available options in software are somewhat crudely applicable to only specific problems. The applicability of the techniques is also mostly based on hit and trial method especially in case of Fourier filtering unless the exact nature of the solution is predetermined. To cope for this constraint of pre-defined applicability, the customizability of the wavelets using different kinds of wavelets is assessed and Matlab's customization options are used in this study.","PeriodicalId":155651,"journal":{"name":"2013 International Conference on Aerospace Science & Engineering (ICASE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132449044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
General system design of Cubesat in LEO for IR imaging 立方体卫星低轨红外成像总体系统设计
2013 International Conference on Aerospace Science & Engineering (ICASE) Pub Date : 2013-08-01 DOI: 10.1109/ICASE.2013.6785552
Syed Afaq Ali Shah, Usman Arshad
{"title":"General system design of Cubesat in LEO for IR imaging","authors":"Syed Afaq Ali Shah, Usman Arshad","doi":"10.1109/ICASE.2013.6785552","DOIUrl":"https://doi.org/10.1109/ICASE.2013.6785552","url":null,"abstract":"A Cubesat is a miniature sized Satellite having a volume of exactly one liter with a mass of no more than 1.33 kilograms. The design of a Cubesat is simple which allows low cost for its development. This paper describes the outline of a proposed Cubesat Project, named IR_SAT, by the students of Institute of Space Technology. The project aims for design and development of a 10cm cubic satellite weighing less than 1kg. The major mission of Satellite is to study the vegetation pattern and soil moisture on the areas of Pakistan. For this monitoring IR Imager will be used that is unaffected by the Earth Albedo. The satellite is supposed to operate at an altitude of 400 km above Sea and perform the limited LEO science mission. In addition to the IR_Sat description, the detailed subsystems are also discussed along with their corresponding budget in this paper.","PeriodicalId":155651,"journal":{"name":"2013 International Conference on Aerospace Science & Engineering (ICASE)","volume":"226 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114701626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Analysis of authenticated encryption scheme for wireless sensor networks 无线传感器网络认证加密方案分析
2013 International Conference on Aerospace Science & Engineering (ICASE) Pub Date : 2013-08-01 DOI: 10.1109/ICASE.2013.6785551
A. A. Siddiqui, Syed Jahanzeb Hussain Pirzada
{"title":"Analysis of authenticated encryption scheme for wireless sensor networks","authors":"A. A. Siddiqui, Syed Jahanzeb Hussain Pirzada","doi":"10.1109/ICASE.2013.6785551","DOIUrl":"https://doi.org/10.1109/ICASE.2013.6785551","url":null,"abstract":"In this paper, a new scheme to enhance security of wireless gateway node is presented. In proposed scheme, analysis of implementing counter with cipher block chaining message authentication code on field programmable gate array has been proposed. Preliminary results show that proposed scheme does not have application dependency and have potential to be integrated with any application of wireless sensor network.","PeriodicalId":155651,"journal":{"name":"2013 International Conference on Aerospace Science & Engineering (ICASE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114831900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Heuristic-intelligent design schemes a solution paradigm for transatmospheric cruiser 启发式智能设计方案是跨大气巡洋舰的一种解决范例
2013 International Conference on Aerospace Science & Engineering (ICASE) Pub Date : 2013-08-01 DOI: 10.1109/ICASE.2013.6785547
A. Khan, Ali Sarosh
{"title":"Heuristic-intelligent design schemes a solution paradigm for transatmospheric cruiser","authors":"A. Khan, Ali Sarosh","doi":"10.1109/ICASE.2013.6785547","DOIUrl":"https://doi.org/10.1109/ICASE.2013.6785547","url":null,"abstract":"Space planes are widely envisaged as the most viable solution for carrying out space activities in the future. The highly coupled natures of lift and propulsion mechanism in space planes limit the use of classical design approach. A paradigm shift in design methodologies is needed. Cognitive-intelligent methods must therefore be employed to evolve Heuristic-Intelligent Design Schemes that do not rely on archival data. These schemes must also be self-starting to avoid tedious recursions - hence inverse design approaches are recommended that can get integrated with heuristic-intelligent methods. A fast and frugal method based on high-fidelity approximate analytical formulation that uses hypersonic aerothermodynamics and energy partition principles must be resolved to evolve design solutions that simultaneously satisfy requirements for highly-integrated configurations as well as mass-model of transatmospheric cruisers. This paper briefly describes one such scheme called HI2D that can be used for designing, optimization and intelligent classification of spaceplane system configurations. The results of this scheme show significant improvement in the geometric and performance solution of baseline configuration.","PeriodicalId":155651,"journal":{"name":"2013 International Conference on Aerospace Science & Engineering (ICASE)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117305870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Numerical investigation of usage of patterned collapsible energy absorbers in steering column of an automotive vehicle 折叠式吸能器在某汽车转向柱上应用的数值研究
2013 International Conference on Aerospace Science & Engineering (ICASE) Pub Date : 2013-08-01 DOI: 10.1109/ICASE.2013.6785548
Zeeshan Qaiser, Omer Masood Qureshi, K. A. Awan, H. Ahmed
{"title":"Numerical investigation of usage of patterned collapsible energy absorbers in steering column of an automotive vehicle","authors":"Zeeshan Qaiser, Omer Masood Qureshi, K. A. Awan, H. Ahmed","doi":"10.1109/ICASE.2013.6785548","DOIUrl":"https://doi.org/10.1109/ICASE.2013.6785548","url":null,"abstract":"Collapsible energy absorbers are encouraged in the field of automotive in the past decade due to their good energy absorption characteristics. Impact energy absorbers dissipates maximum amount of energy during an axial impact. Impact of steering wheel with ribs of driver during an accident is an area of prime concern. A patterned steering column is proposed in the present work which turns into inverting tube and absorb good amount of energy during an accident. The inversion process is induced in steering column by embedding sinusoidal patterns over it. This process is numerically investigated by using commercially available non-linear solver LS-DYNA (TM). Different steering column arrangements are studied and force-displacement results are analyzed in this work. A study is performed to investigate and compare energy absorption parameters of conventional and proposed design of steering column. The results show that the energy absorption with proposed sinusoidaly patterned steering column is better than conventional steering column.","PeriodicalId":155651,"journal":{"name":"2013 International Conference on Aerospace Science & Engineering (ICASE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126868171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Optical fiber holography for remote and hostile environments 用于偏远和恶劣环境的光纤全息术
2013 International Conference on Aerospace Science & Engineering (ICASE) Pub Date : 2013-08-01 DOI: 10.1109/ICASE.2013.6785553
S. M. A. Bashir, Ghulam Abbas Mughal, S. Z. Farooq
{"title":"Optical fiber holography for remote and hostile environments","authors":"S. M. A. Bashir, Ghulam Abbas Mughal, S. Z. Farooq","doi":"10.1109/ICASE.2013.6785553","DOIUrl":"https://doi.org/10.1109/ICASE.2013.6785553","url":null,"abstract":"Optical Holography has promising applications in latest imaging techniques and advancements. The outcome of optical holography is very sensitive and highly realistic three-dimensional image of any object of interest. Such images when reconstructed and viewed from different angle give raise to a different view of the image. We present this technique of optical fiber holography which involves transmission and reception the wave patterns using an optical fiber cable, which in turn causes the size of the setup to be reduced. Paper describes a setup for doing holography using optical fiber, which in turn will help in analyzing any object of interest in three-dimensional space that is either remote or situated in hostile environment (high temperature, humidity, etc.).","PeriodicalId":155651,"journal":{"name":"2013 International Conference on Aerospace Science & Engineering (ICASE)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132121829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selection schemes for orthogonal tripole antennas 正交三极天线的选择方案
2013 International Conference on Aerospace Science & Engineering (ICASE) Pub Date : 2013-08-01 DOI: 10.1109/ICASE.2013.6785550
A. Habib, J. Gutierrez
{"title":"Selection schemes for orthogonal tripole antennas","authors":"A. Habib, J. Gutierrez","doi":"10.1109/ICASE.2013.6785550","DOIUrl":"https://doi.org/10.1109/ICASE.2013.6785550","url":null,"abstract":"Cross-polarized antenna selection schemes lead to a considerable decrease in overall cost of system and size of the hardware without sacrificing the advantages of multiple-input multiple-output systems. In this work, we present a study of receive antenna selection based on measurements obtained with a tripole antenna pair. From the measurement data we extract the selection gains associated with triple polarized channels for a different number of antenna combinations at the receiver. The obtained results show the effectiveness of dealing with antenna selection schemes along with orthogonal antennas, providing higher gains in most of the cases.","PeriodicalId":155651,"journal":{"name":"2013 International Conference on Aerospace Science & Engineering (ICASE)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123531064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Comparison between different displacement autopilots of A-3 A-3不同位移自动驾驶仪的比较
2013 International Conference on Aerospace Science & Engineering (ICASE) Pub Date : 2013-08-01 DOI: 10.1109/ICASE.2013.6785546
M. Iqbal, N. Saqib, A. Waheed
{"title":"Comparison between different displacement autopilots of A-3","authors":"M. Iqbal, N. Saqib, A. Waheed","doi":"10.1109/ICASE.2013.6785546","DOIUrl":"https://doi.org/10.1109/ICASE.2013.6785546","url":null,"abstract":"Stability and Control is the most important factor to be taken into account, during all phases of design of an aircraft specifically during preliminary design. Different aircrafts have different control and stability requirements. Converse relation exists between stability and control. Stability requirements are greater in transport airliners, because transport plane does not require fast maneuvers. While in fighter jets, where maneuverability is the vital inevitability, less stability is required with greater controllability. This paper discusses the comparison between different displacement autopilots of transport airliner A-3 designed by me in aero vehicle design course.","PeriodicalId":155651,"journal":{"name":"2013 International Conference on Aerospace Science & Engineering (ICASE)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122760985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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