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New Approaches in Engineering Research Vol. 12最新文献

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Approximate Maximum-likelihood DOA Estimation for a Single Narrow-band Amplitude-distorted Wavefront 单一窄带幅度失真波前的近似最大似然DOA估计
New Approaches in Engineering Research Vol. 12 Pub Date : 2021-09-04 DOI: 10.9734/bpi/naer/v12/12639d
H. Abeida
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引用次数: 0
Study on Unsteady Triple-Shock Configurations in Supersonic Flows Past Combined Cylinder AD Bodies in Different Gas Media 不同气体介质中超声速流过组合圆柱体的非定常三激波结构研究
New Approaches in Engineering Research Vol. 12 Pub Date : 2021-09-04 DOI: 10.9734/bpi/naer/v12/12613d
O. Azarova, L. Gvozdeva, O. Kravchenko
{"title":"Study on Unsteady Triple-Shock Configurations in Supersonic Flows Past Combined Cylinder AD Bodies in Different Gas Media","authors":"O. Azarova, L. Gvozdeva, O. Kravchenko","doi":"10.9734/bpi/naer/v12/12613d","DOIUrl":"https://doi.org/10.9734/bpi/naer/v12/12613d","url":null,"abstract":"","PeriodicalId":215914,"journal":{"name":"New Approaches in Engineering Research Vol. 12","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128366129","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
Numerical Simulation of Film Cooling Over Flat Plate 平板上气膜冷却的数值模拟
New Approaches in Engineering Research Vol. 12 Pub Date : 1900-01-01 DOI: 10.9734/bpi/naer/v12/8210d
A. B. Ennil, Abdulhafid M. Elfaghi
{"title":"Numerical Simulation of Film Cooling Over Flat Plate","authors":"A. B. Ennil, Abdulhafid M. Elfaghi","doi":"10.9734/bpi/naer/v12/8210d","DOIUrl":"https://doi.org/10.9734/bpi/naer/v12/8210d","url":null,"abstract":"The effect of film cooling over flat plate is investigated using the commercial CD code; Fluent 6.3. The computational domain includes the coolant supply tube as well as the main mixing region. A tube L/D of 4 and injection angles of (30 o , 60 o , and 90 o ) were employed for blowing ratio of (0.33, 0.5, and 1.67), and a density ratio of 1.14. Adiabatic film cooling effectiveness distributions were also determined for inline and staggered arrangements. The main observation from this study that the 30 o hole gave larger effectiveness values than 60 o and 90 o at the blowing ratio of 0.33 with the same length-to-diameter ratio. The maximum effectiveness was achieved with a blowing ratio of 0.5. The results show that the increase of blowing ratio negatively affects film cooling, such that for the blowing ratio of 1.67 the injected coolant tends to lift off from the wall due to the increase of the wall normal momentum. The comparisons for numerical results with experimental data are presented.","PeriodicalId":215914,"journal":{"name":"New Approaches in Engineering Research Vol. 12","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130104609","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
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