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Investigation of Mach Number Independence Principle for a Two-Dimensional Wedge 二维楔体马赫数无关原理研究
2021 IEEE Pune Section International Conference (PuneCon) Pub Date : 2021-12-16 DOI: 10.1109/punecon52575.2021.9686488
S. Shivashree
{"title":"Investigation of Mach Number Independence Principle for a Two-Dimensional Wedge","authors":"S. Shivashree","doi":"10.1109/punecon52575.2021.9686488","DOIUrl":"https://doi.org/10.1109/punecon52575.2021.9686488","url":null,"abstract":"Oswatitsch's independence principle is of primary importance in aerothermodynamics, particularly for high-speed vehicles. In accordance with this principle, force coefficients measured experimentally for a certain design at Mach 10 (e.g.) hold up under all higher Mach numbers, i.e., Mach> 10, provided the flow is inviscid and perfect gas. In any case, once the surface temperature exceeds a critical point, the independence principle begins to lose its validity. In this paper, a slender 2D wedge is analyzed numerically and theoretically for a range of Mach number $mathbf{1 < mathbf{M}_{infty} < 20}$ for specific aerodynamic properties, namely, pressure coefficient $boldsymbol{mathrm{C}_{mathrm{P}}}$, wave-drag coefficients $boldsymbol{mathrm{C}_{mathrm{D}}}$, and shock wave angle, all of which are vital for designing hypersonic cruise and re-entry vehicles. The independence principle for the two-dimensional wedge is numerically assessed through FLU ENT in the context of an adiabatic wall boundary condition. The numerical results of $boldsymbol{mathrm{C}_{mathrm{P}}, mathrm{C}_{mathrm{D}}}$, and shock wave angle computed under different Mach numbers are in relatively good agreement with the theoretical results. Also, for the slender wedge model considered here, at higher Mach numbers, its Mach angle's magnitude corresponds to the maximum deflection angle, which the flow undergoes at the body surface.","PeriodicalId":154406,"journal":{"name":"2021 IEEE Pune Section International Conference (PuneCon)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121167277","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
AutoCAD to G-code Converter AutoCAD到g码转换器
2021 IEEE Pune Section International Conference (PuneCon) Pub Date : 2021-12-16 DOI: 10.1109/punecon52575.2021.9686541
Venkata Suresh Yarava
{"title":"AutoCAD to G-code Converter","authors":"Venkata Suresh Yarava","doi":"10.1109/punecon52575.2021.9686541","DOIUrl":"https://doi.org/10.1109/punecon52575.2021.9686541","url":null,"abstract":"Numeric Controls are common today for the automated control of machining tools. High speed computer is used as an interface to implement such controls. This study aims to generate a G-code, directly from a drawing, AutoCAD, file and upload the same as a compatible G-Code for the NC Machine. This paper details the approach (concepts) and describes various steps involved in implementation from data extraction to transformation of data to G-Code.","PeriodicalId":154406,"journal":{"name":"2021 IEEE Pune Section International Conference (PuneCon)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127043847","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
File-Share App - A Collaborative Tool 文件共享应用程序-一个协作工具
2021 IEEE Pune Section International Conference (PuneCon) Pub Date : 2021-12-16 DOI: 10.1109/punecon52575.2021.9686539
Aniruddha Chakravarty, Kalpak Jibhakate, Mandar Jadhav, Nilima Kulkarni
{"title":"File-Share App - A Collaborative Tool","authors":"Aniruddha Chakravarty, Kalpak Jibhakate, Mandar Jadhav, Nilima Kulkarni","doi":"10.1109/punecon52575.2021.9686539","DOIUrl":"https://doi.org/10.1109/punecon52575.2021.9686539","url":null,"abstract":"Effects of the COVID-19 pandemic and rise in cloud infrastructure have prompted workplaces to normalize offering remote work to individual employees in order to communicate using user-accessible software. In-person interactions used to be an effective way of communication. As in-person meetings are not always possible, the alternative is to have virtual meetings. Currently, there are many options one can use for professional meetings and for casual hangouts but none that allow for both. In this manuscript, we blueprint the process of building a highly interactive web application that bridges the gap between professional meeting environments and casual chat applications by allowing for a collaborative virtual environment between end- users. Doing so would enable individuals to connect securely over on a single platform, without the need of focusing on the context of the meeting.","PeriodicalId":154406,"journal":{"name":"2021 IEEE Pune Section International Conference (PuneCon)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130405019","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
Computational Aerodynamics of an AK-47 Rifle's 70.82 mm Bullet in Proximity to a Near Wall AK-47步枪70.82毫米子弹接近近墙的计算空气动力学
2021 IEEE Pune Section International Conference (PuneCon) Pub Date : 2021-12-16 DOI: 10.1109/PuneCon52575.2021.9686472
Tanmay B. Gholap, Ruturaj V. Salokhe, Ganesh V. Ghadage, Shankar V. Mane, D. Bajaj, D. Sahoo
{"title":"Computational Aerodynamics of an AK-47 Rifle's 70.82 mm Bullet in Proximity to a Near Wall","authors":"Tanmay B. Gholap, Ruturaj V. Salokhe, Ganesh V. Ghadage, Shankar V. Mane, D. Bajaj, D. Sahoo","doi":"10.1109/PuneCon52575.2021.9686472","DOIUrl":"https://doi.org/10.1109/PuneCon52575.2021.9686472","url":null,"abstract":"Computational Fluid Dynamics was used to study the flow around an AK-47 Assault Rifle© 7.82-mm bullet in proximity to a near wall at Mach 2. The computational methodology was validated against the previously existing computational data. In metropolitan battles situations, the projectiles are fired in close proximity to the ground. The presence of ground prompts an asymmetric pressure distribution over the surface of the bullet. The reflection of shock waves after hitting the wall is considered particularly. From the earliest stage to the influence around the shot; the level of impact is subjected to the ground clearance. Streamlines across the projectile and related surface pressure distribution acquired from computational iterations are described. Clearances with 0.5 and 1 height/diameter ratio were studied to examine the transitions in aerodynamic coefficients like lift, drag, and moment.","PeriodicalId":154406,"journal":{"name":"2021 IEEE Pune Section International Conference (PuneCon)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130989212","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
Performance Study of Supersonic Air-intake Adopting Double Bump 采用双碰撞的超音速进气性能研究
2021 IEEE Pune Section International Conference (PuneCon) Pub Date : 2021-12-16 DOI: 10.1109/punecon52575.2021.9686525
Mayuri M Dhanlobhe, Pritee D Nale, Vishal S Shejwal, Pratik A. Suryawanshi, D. Sahoo
{"title":"Performance Study of Supersonic Air-intake Adopting Double Bump","authors":"Mayuri M Dhanlobhe, Pritee D Nale, Vishal S Shejwal, Pratik A. Suryawanshi, D. Sahoo","doi":"10.1109/punecon52575.2021.9686525","DOIUrl":"https://doi.org/10.1109/punecon52575.2021.9686525","url":null,"abstract":"A computational study is carried out by adopting Two-Dimensional Double Bump at supersonic air intake for Mach number 2.2. Numerical simulation has been made with an Explicit coupled solver with K-ω turbulence model. The improvement in flow and overall performance of supersonic intake is observed with adoption of Double Bump. It has been observed that the pressure recovery is increased by installing Double Bump. Computational study revealed that the low-energy air region near the wall boundary layer has minimized for the case of double bump compared with that of the single bump air-intake.","PeriodicalId":154406,"journal":{"name":"2021 IEEE Pune Section International Conference (PuneCon)","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128207013","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
Feature-Based Analytical Crop Recommendation System 基于特征的分析作物推荐系统
2021 IEEE Pune Section International Conference (PuneCon) Pub Date : 2021-12-16 DOI: 10.1109/punecon52575.2021.9686530
Manas Oswal, Karan Mahajan, Shubham Pagare, Vishal Kasa, Jyoti Malhotra, S. Sarode
{"title":"Feature-Based Analytical Crop Recommendation System","authors":"Manas Oswal, Karan Mahajan, Shubham Pagare, Vishal Kasa, Jyoti Malhotra, S. Sarode","doi":"10.1109/punecon52575.2021.9686530","DOIUrl":"https://doi.org/10.1109/punecon52575.2021.9686530","url":null,"abstract":"India, the country with the largest occupation in Agriculture, ranks as the second-largest producer for various fruits and vegetables. Farmers have been cultivating crops by following the traditional pattern that they have been using for decades. This worked well, until recent years, where the land is poised by land degradation and the climate has become more unstable. Thus, it becomes imperative that we select a crop by taking these parameters into consideration. We aim to solve the problem of crop selection by making a system that takes these parameters into consideration and suggests the optimal crop. Research is being done to create similar systems using Machine Learning or other AI-based algorithms. In this manuscript, we are trying to explore the use of Soft Computing and Fuzzy logic to create a system to suggest the optimal or “best-suited” crop. For this purpose, the system only requires the optimal data for each crop and doesn't require huge datasets as required for training a traditional neural network or an ML based model.","PeriodicalId":154406,"journal":{"name":"2021 IEEE Pune Section International Conference (PuneCon)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134395923","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
Design and Development of Mobile Handset Antenna for Optimum SAR for Mobile Communication System 面向移动通信系统最佳SAR的手机天线设计与开发
2021 IEEE Pune Section International Conference (PuneCon) Pub Date : 2021-12-16 DOI: 10.1109/PuneCon52575.2021.9686538
Sebastian Mannaruparampil, Ashita Serrao, Srishti Singh, Freda Carvalho, A. Kotrashetti
{"title":"Design and Development of Mobile Handset Antenna for Optimum SAR for Mobile Communication System","authors":"Sebastian Mannaruparampil, Ashita Serrao, Srishti Singh, Freda Carvalho, A. Kotrashetti","doi":"10.1109/PuneCon52575.2021.9686538","DOIUrl":"https://doi.org/10.1109/PuneCon52575.2021.9686538","url":null,"abstract":"The increase in daily average use of mobile phones has it's ramifications on biological systems. Specific Absorption Rate (SAR) evaluates mobile phones’ safety limits and is measured in W/Kg. In this paper, we have designed an antenna working on GSM 900 technology using the ANSYS HFSS simulation software. We are following the FCC standard. The SAR reduction methods, including the Water-based walls, conducting walls, and the EBG structure, are implemented on the antenna using ANSYS HFSS. Comparative interpretation of each of these methods to limit the RF exposure is studied further in this project. These results can help design the mobile communication equipment with optimum SAR below the SAR limit.","PeriodicalId":154406,"journal":{"name":"2021 IEEE Pune Section International Conference (PuneCon)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115855392","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
Optimal Power Generation and Thermal Analysis for ÆtherSat ÆtherSat的最优发电和热分析
2021 IEEE Pune Section International Conference (PuneCon) Pub Date : 2021-12-16 DOI: 10.1109/punecon52575.2021.9686502
Adesh Phalphale, V. Gaikwad, Rahul Sharmale, Nishita Ravuri, Venkatesh Bihani, Yashita Singh
{"title":"Optimal Power Generation and Thermal Analysis for ÆtherSat","authors":"Adesh Phalphale, V. Gaikwad, Rahul Sharmale, Nishita Ravuri, Venkatesh Bihani, Yashita Singh","doi":"10.1109/punecon52575.2021.9686502","DOIUrl":"https://doi.org/10.1109/punecon52575.2021.9686502","url":null,"abstract":"Solar energy is becoming the conventional and preferred source of power in satellites. The power generated by the solar arrays present on satellites depends on the orientation and orbital parameters associated with it. The aforementioned factors also help determine the thermal state of the satellite. First, this paper discusses the orbital parameters associated with the mission orbit of ÆtherSat. ÆtherSat is a theoretical 1U student CubeSat with a novel solar-tracking mechanism in its power system and its mission orbit is at 500 km altitude with zero eccentricity. Following this, a transient thermal analysis for the same is carried out. The equations involved in the thermal analysis are solved using Euler's numerical method on the MATLAB software and a range of temperatures experienced by ÆtherSat is obtained. The transient analysis concludes that the satellite components are operational in the obtained temperature limit, and hence thermal control system is not required since it is ensured that the ÆtherSat thermal constraints are maintained in fluctuating conditions.","PeriodicalId":154406,"journal":{"name":"2021 IEEE Pune Section International Conference (PuneCon)","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116351710","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
Review of Aircraft Crash Reports and Engine Pod Location 检查飞机坠毁报告和引擎吊舱位置
2021 IEEE Pune Section International Conference (PuneCon) Pub Date : 2021-12-16 DOI: 10.1109/punecon52575.2021.9686505
Aditya N Kane, Anjali S Jadhav, Shubham Sahamate, Vaidehi Kokare, Krishna B. Jadhav
{"title":"Review of Aircraft Crash Reports and Engine Pod Location","authors":"Aditya N Kane, Anjali S Jadhav, Shubham Sahamate, Vaidehi Kokare, Krishna B. Jadhav","doi":"10.1109/punecon52575.2021.9686505","DOIUrl":"https://doi.org/10.1109/punecon52575.2021.9686505","url":null,"abstract":"One of the biggest achievements of mankind has been the rapid growth in the aerospace industry. Despite the huge progress in aviation sector; human errors, equipment malfunctions as well as unusual events occur and therefore accidents still do take place. Aircraft crashes are studied from year 2000 till 2020. From this extensive study of crash reports, it was found out that major crashes happened due to structural failures which included the engine. In the past 50 years, over 1900 accidents have occurred worldwide. Due to problems in engines and different locations of engines many crashes have happened. 111 crash investigation reports are studied. For focusing on below-wing engine pod location airport handling manuals produced by OEMs like Airbus and Boeing are used. Engine pod location data produced by scatter plot gives prominent idea about, engine pod location data of various aircrafts. Common engine pod position is between 20% and 40% of wingspan from FRL. Outliers exist in scatter plot, for which the extreme case, Antonov An-225 Mriya, has it's 3rd engine at ~ 55% of wingspan.","PeriodicalId":154406,"journal":{"name":"2021 IEEE Pune Section International Conference (PuneCon)","volume":"294 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116398111","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
Exploring Customer comments using Latent Dirichlet Allocation 使用潜在狄利克雷分配探索客户评论
2021 IEEE Pune Section International Conference (PuneCon) Pub Date : 2021-12-16 DOI: 10.1109/punecon52575.2021.9686484
R. Batra, Dhanya Pramod
{"title":"Exploring Customer comments using Latent Dirichlet Allocation","authors":"R. Batra, Dhanya Pramod","doi":"10.1109/punecon52575.2021.9686484","DOIUrl":"https://doi.org/10.1109/punecon52575.2021.9686484","url":null,"abstract":"With the advent of social media, a large number of customers share their experience on social media about the products & services that they consume. Detecting issues reported by customers is significant for providing solutions to their problems. As a result, there is an emerging sub-field of social media analytics to identify and comprehend customer feedback and understand topics hidden in it. Topic modeling algorithms, a branch of machine learning, extract relevant insights from customers' posts by identifying hidden words and patterns. This pilot study has been conducted to ascertain the most frequently discussed issues by users on social media microblogging site Twitter. We used Tf-idf to re-allocate the weights to feature words and Latent Dirichlet Allocation (LDA) for topic modeling. Additionally, we carried out a comparative study of LDA against GSDMM topic model.","PeriodicalId":154406,"journal":{"name":"2021 IEEE Pune Section International Conference (PuneCon)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116858973","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
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