发布求助
文献互助 智能选刊 最新文献

AIAA Aviation 2019 Forum最新文献

筛选
英文 中文
A Modeling Environment for Assessing Aviation Safety 航空安全评估的建模环境
AIAA Aviation 2019 Forum Pub Date : 2019-06-17 DOI: 10.2514/6.2019-2937
P. Menon, P. Dutta, Oliver Chen, Hari N. Iyer, Bong-Jun Yang
{"title":"A Modeling Environment for Assessing Aviation Safety","authors":"P. Menon, P. Dutta, Oliver Chen, Hari N. Iyer, Bong-Jun Yang","doi":"10.2514/6.2019-2937","DOIUrl":"https://doi.org/10.2514/6.2019-2937","url":null,"abstract":"","PeriodicalId":384114,"journal":{"name":"AIAA Aviation 2019 Forum","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117234380","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
Aero-Propulsive Analysis for Contemporary Conceptual Design 当代概念设计的航空推进分析
AIAA Aviation 2019 Forum Pub Date : 2019-06-17 DOI: 10.2514/6.2019-3019
Vivek Ahuja, Imon Chakraborty, R. Hartfield
{"title":"Aero-Propulsive Analysis for Contemporary Conceptual Design","authors":"Vivek Ahuja, Imon Chakraborty, R. Hartfield","doi":"10.2514/6.2019-3019","DOIUrl":"https://doi.org/10.2514/6.2019-3019","url":null,"abstract":"","PeriodicalId":384114,"journal":{"name":"AIAA Aviation 2019 Forum","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127511013","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
Numerical Simulation of Fountain formation due to Twin-Jet impingement on Ground 地面双射流撞击喷泉形成的数值模拟
AIAA Aviation 2019 Forum Pub Date : 2019-06-17 DOI: 10.2514/6.2019-3643
Xiang Zhang, R. Agarwal, Lingjiu Zhou
{"title":"Numerical Simulation of Fountain formation due to Twin-Jet impingement on Ground","authors":"Xiang Zhang, R. Agarwal, Lingjiu Zhou","doi":"10.2514/6.2019-3643","DOIUrl":"https://doi.org/10.2514/6.2019-3643","url":null,"abstract":"","PeriodicalId":384114,"journal":{"name":"AIAA Aviation 2019 Forum","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127549864","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
Open- and closed loop control on a D-shaped bluff body equipped with Coanda actuation 采用Coanda作动机构的d型钝体开闭环控制
AIAA Aviation 2019 Forum Pub Date : 2019-06-17 DOI: 10.2514/6.2019-3601
P. Oswald, R. Semaan, B. R. Noack
{"title":"Open- and closed loop control on a D-shaped bluff body equipped with Coanda actuation","authors":"P. Oswald, R. Semaan, B. R. Noack","doi":"10.2514/6.2019-3601","DOIUrl":"https://doi.org/10.2514/6.2019-3601","url":null,"abstract":"The present study investigates drag reductions and efficiency increases by open-and closed-loop Coanda actuation on a D-shaped bluff body. Open-loop measurements are performed by scanning the actuation parameter space spanned by the actuation frequency and the moment coefficient. At a maximum power coefficient of 0.22 a drag reduction of 33 % relative to the unactuated case is observed. Closed loop control is conducted using machine learning control (MLC). MLC is a model-free control methodology that seeks to optimize a predefined cost function. Two cost functions are optimized , the drag coefficient and the sum of drag & momentum coefficients. MLC yields a drag reduction of up to 27 % and a maximum power ratio of 0.154, which are comparable to the open-loop results.","PeriodicalId":384114,"journal":{"name":"AIAA Aviation 2019 Forum","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124804307","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
Extension of non-equilibrium modeling of metal ablation to the thermal effect inside the target material using a two temperature model 用双温度模型将金属烧蚀的非平衡模型推广到靶材料内部的热效应
AIAA Aviation 2019 Forum Pub Date : 2019-06-17 DOI: 10.2514/6.2019-3568
Amina Ait Oumeziane, J. Parisse
{"title":"Extension of non-equilibrium modeling of metal ablation to the thermal effect inside the target material using a two temperature model","authors":"Amina Ait Oumeziane, J. Parisse","doi":"10.2514/6.2019-3568","DOIUrl":"https://doi.org/10.2514/6.2019-3568","url":null,"abstract":"","PeriodicalId":384114,"journal":{"name":"AIAA Aviation 2019 Forum","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124824252","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
Limitations of Two-Shock Mixed Compression Intakes at Hypersonic Mach Numbers 高超声速马赫数下双激波混合压缩进气道的局限性
AIAA Aviation 2019 Forum Pub Date : 2019-06-17 DOI: 10.2514/6.2019-3592
Arjun J. Vedam, M. K. Devaraj, G. Jagadeesh
{"title":"Limitations of Two-Shock Mixed Compression Intakes at Hypersonic Mach Numbers","authors":"Arjun J. Vedam, M. K. Devaraj, G. Jagadeesh","doi":"10.2514/6.2019-3592","DOIUrl":"https://doi.org/10.2514/6.2019-3592","url":null,"abstract":"","PeriodicalId":384114,"journal":{"name":"AIAA Aviation 2019 Forum","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124876253","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
A Novel Flux Reconstruction Method for Diffusion Problems 扩散问题的一种新的通量重建方法
AIAA Aviation 2019 Forum Pub Date : 2019-06-17 DOI: 10.2514/6.2019-3063
Philip E. Johnson, E. Johnsen, H. Huynh
{"title":"A Novel Flux Reconstruction Method for Diffusion Problems","authors":"Philip E. Johnson, E. Johnsen, H. Huynh","doi":"10.2514/6.2019-3063","DOIUrl":"https://doi.org/10.2514/6.2019-3063","url":null,"abstract":"","PeriodicalId":384114,"journal":{"name":"AIAA Aviation 2019 Forum","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124903169","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
A Bayesian Safety Assessment Methodology for Novel Aircraft Architectures and Technologies Using Continuous FHA 基于连续FHA的新型飞机结构和技术的贝叶斯安全评估方法
AIAA Aviation 2019 Forum Pub Date : 2019-06-17 DOI: 10.2514/6.2019-3123
Mayank V. Bendarkar, Ameya Behere, Simon Briceno, D. Mavris
{"title":"A Bayesian Safety Assessment Methodology for Novel Aircraft Architectures and Technologies Using Continuous FHA","authors":"Mayank V. Bendarkar, Ameya Behere, Simon Briceno, D. Mavris","doi":"10.2514/6.2019-3123","DOIUrl":"https://doi.org/10.2514/6.2019-3123","url":null,"abstract":"Novel architectures and technologies carry with them an uncertainty related to their reliability and associated safety risk. Existing safety assessment methods involve determining the severity of discrete functional failure and the corresponding probability. However, with the advent of novel aircraft architectural and operational concepts, traditional methods of establishing severity and probabilities failures are found lacking due to the scarcity of available data. The current work proposes a safety assessment method that uses architecture-specific performance models along with continuous functional hazard assessments to inform hazard severity. The probability of failures is determined using a Bayesian framework that does not falter when data is scarce. Taken together, it is expected that this new proposed methodology will enable a more accurate safety assessment of novel aircraft architectures and technologies. A safety assessment of an electric propulsion system powered by a fuel cell is conducted using the proposed methodology to serve as a proof of concept.","PeriodicalId":384114,"journal":{"name":"AIAA Aviation 2019 Forum","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124934460","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: 7
Entropy-Stable, High-Order Discretizations Using Continuous Summation-By-Parts Operators 使用连续分段求和算子的熵稳定高阶离散化
AIAA Aviation 2019 Forum Pub Date : 2019-06-17 DOI: 10.2514/6.2019-3206
Jason E. Hicken
{"title":"Entropy-Stable, High-Order Discretizations Using Continuous Summation-By-Parts Operators","authors":"Jason E. Hicken","doi":"10.2514/6.2019-3206","DOIUrl":"https://doi.org/10.2514/6.2019-3206","url":null,"abstract":"We present summation-by-parts (SBP) discretizations of the linear advection and Euler equations that use a continuous solution space. These continuous SBP discretizations assemble global operators from element operators, and they are the SBP analog, or generalization, of continuous Galerkin finite-element methods. Consequently, a stabilization method is needed to suppress high-frequency oscillations and ensure optimal convergence rates. The proposed stabilization, which is a form of local-projection stabilization, leads to energy-stable discretizations of the linear advection equation and entropy-stable discretizations of the Euler equations. Furthermore, the stabilization is element local, which keeps the stencil compact, and the stabilized discretizations have favorable time-step restrictions. Results are provided to demonstrate the accuracy and efficiency of the continuous SBP discretizations.","PeriodicalId":384114,"journal":{"name":"AIAA Aviation 2019 Forum","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126188609","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
Supercooled Water Droplet Impingement and Icing Region Prediction on a Rotating Fan Blade 旋转风机叶片上过冷水滴撞击及结冰区域预测
AIAA Aviation 2019 Forum Pub Date : 2019-06-17 DOI: 10.2514/6.2019-3309
Tao Wu, Qiang Yang, Zhiqiang Guo, W. Dong
{"title":"Supercooled Water Droplet Impingement and Icing Region Prediction on a Rotating Fan Blade","authors":"Tao Wu, Qiang Yang, Zhiqiang Guo, W. Dong","doi":"10.2514/6.2019-3309","DOIUrl":"https://doi.org/10.2514/6.2019-3309","url":null,"abstract":"","PeriodicalId":384114,"journal":{"name":"AIAA Aviation 2019 Forum","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123752331","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信