Computational Investigation on the Effect of Fences on Aerodynamic Characteristics of an Aircraft Wing

 A computational study, to improve the stall characteristics of wing at high angles of attack, with and without fence configuration is done here. Wing fences, also known as boundary layer fences and potential fences are fixed aerodynamic devices attached to aircraft in the exactly middle of the span and two fences are fixed in the exactly middle of the wing span and two fences are fixed at 25 percentage of wing span from their corresponding wing tip. The main aim of this research is to improve the lift and stalling angle. A rectangular wing with different angles of attack is used. Modeling was done in CATIA V5 R20 and meshing and analyzing was taken in ANSYS workbench and CFX. Then the graph is drawn for CL and CD for various angles of attack and various models. 

by Mohamed Hamdan. A "Computational Investigation on the Effect of Fences on Aerodynamic Characteristics of an Aircraft Wing" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, 

URL: https://www.ijtsrd.compapers/ijtsrd43687.pdf 

Paper URL: https://www.ijtsrd.comengineering/aeronautical-engineering/43687/computational-investigation-on-the-effect-of-fences-on-aerodynamic-characteristics-of-an-aircraft-wing/mohamed-hamdan-a

callforpaperlifesciences, lifesciencesjournal, researchpapers

Damage Assessment System for Aircraft Structural Defects using Wavelet Transform

Defects are often arises on the inner surface of aircraft structures, but most of conventional techniques can determine only the damages and cannot determine the degree of damage. Digital Image Processing and Wavelet Transform are used in this project. Characteristics parameters such as the length of the crack can be exactly detected to measure the faults of aircraft structure. Generally failures of different aircraft components and parts are revealed and examined by the use of non destructive examination methods. In further detailed explanation and interpretation of failures optical and scanning electron microscopy are used. This paper presents a new approach in automation for crack detection on pavement surface images. The method is based on the continuous wavelet transform. Then, wavelet coefficients maximal values are searched and their propagation through scales is analyzed. Finally, a post processing gives a binary image which indicates the presence or not of cracks on the pavement surface image. 

by V. Akilan | S. Rajkumar "Damage Assessment System for Aircraft Structural Defects using Wavelet Transform" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, 

URL: https://www.ijtsrd.compapers/ijtsrd43630.pdf 

Paper URL: https://www.ijtsrd.comengineering/aeronautical-engineering/43630/damage-assessment-system-for-aircraft-structural-defects-using-wavelet-transform/v-akilan

internationaljournalofmanagement, callforpapermanagement, managementjournal 

Performance Analysis of MIMO System on Different Modulation Scheme over Rician Channel

The wireless communications is one of the most active areas of technology development of our time. Recently, orthogonal frequency division multiplexing has been regarded as one of the core technologies for various wireless communication systems. The BER level is depend on the modulation type, SNR value and channel behavior. The Modulation schemes that we have used in this thesis are 4 QAM, 8 QAM, 16 QAM and 64 QAM which further improved using forward error correction codes FEC . A comparison is made between the diversity gain of MIMO systems in terms of BER for high QAM modulation scheme. This work presents, by a simulation toll MATLAB R2013a used for model implemented using fading channel to the performance analysis of Bit Error rate BER V S Signal to Noise ratio SNR . 

by Mona Ranjan | Praven K Patidar "Performance Analysis of MIMO System on Different Modulation Scheme over Rician Channel" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-5 , August 2020, 

URL: https://www.ijtsrd.com/papers/ijtsrd31730.pdf 

Paper Url :https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/31730/performance-analysis-of-mimo-system-on-different-modulation-scheme-over-rician-channel/mona-ranjan

internationaljournalsinengineering, callforpaperengineering, ugcapprovedengineeringjournal 

Comparative Study on Effective Turbulence Model for NACA0012 Airfoil using Spalart – Allmaras as a Benchmark

The present work is dedicated to conduct a comparative study on identifying the effective turbulence model in terms of flow outlet velocity, error percentage, number of iterations and time coefficient using NACA0012 airfoil by considering Spalart – Allmaras as a reference model. The current study considers 12 different turbulence models including Spalart – Allmaras for obtaining the output characteristics individually. The turbulence models in existence such as Standard K epsilon, RNG K epsilon, Realizable variant of K epsilon, Standard K Omega, SST K Omega, BSL K Omega, Transition K KL Omega, Transition SST, Reynolds Stress Linear Pressure Strain , Reynolds Stress Quadratic Pressure Strain , Reynolds stress Stress Omega have been utilized for the evaluation and comparison. The NACA0012 airfoil is modelled using CATIA and the meshed model of the airfoil is analyzed using ANSYS FLUENT under standard boundary conditions. The results obtained have shown that the Standard K – epsilon model is found to have less error percentage in comparison to other turbulence models. The count over the number of iterations taken reveals that the models such as Standard K omega, SST K omega and BSL K omega has shown the least number of iterations compared to rest of the turbulence models for completing the analysis. The time coefficient calculation shows that Standard K omega and SST K omega ranks top by showing less time for conducting the analysis with 77.92 seconds and the maximum time was shown by the Reynolds’s stress models considered in the study. 

R. Allocious Britto Rajkumar | N. Mohammed Raffic | Dr. K. Ganesh Babu | V. Vignesh ""Comparative Study of Cyberbullying Detection using Different Machine Learning Algorithms""

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-3 , April 2020,

URL: https://www.ijtsrd.com/papers/ijtsrd30824.pdf

Paper Url :https://www.ijtsrd.com/engineering/aeronautical-engineering/30824/comparative-study-on-effective-turbulence-model-for-naca0012-airfoil-using-spalart-%E2%80%93-allmaras-as-a-benchmark/r-allocious-britto-rajkumar

openaccessjournalofengineering, engineeringjournal, paperpublicationforengineering

The Impact of Temperature and Relative Humidity Elevation on Mental Health of In Patient Admitted Into Jos Teaching Hospital Jos, Plateau State, Nigeria

The paper examined the impact of temperature and relative humidity escalation on mental health of in patient admitted into Jos Teaching Hospital JUTH Jos, Plateau State, Nigeria. The main independent variables of interest were temperature and relative humidity we also employed two derived parameters heat index and overlapping effect in our analysis in which we used four years 2011 2014 data of psychiatric cases and in patient that were admitted in the hospital, ex post facto research design was adopted for the study. The population of the study comprised 2073 in patient that was admitted in the hospital from the year 2011 2014 was sample used for the study. Data collected were analyzed with used of single regression and multiple regression analysis with complex heat index formula. The study found climate parameters temperature and relative humidity and their counterpart derived parameters heat index and overlapping effect make population vulnerable to the risk of psychiatric cases and do increase the numbers of patient admitted in the JUTH. There were positive association between the numbers of in patient in the JUTH and those parameters with 41 and 38 critical acute psychiatric cases due to overlapping and heat index effect respectively. In other word 79 10.2 of the total 778 numbers of patient traceable to those parameters were in critical acute psychiatric condition. Increase in the relative humidity and overlapping made population more vulnerable to the risk of psychiatric cases with approximately equal strength than the heat index and temperature. But the heat index makes more risk than temperature. The vulnerability of population to psychiatric cases was not equally distributed throughout the year 2011 2014. Population response differently to the impact of each parameter throughout those years considered. The effective strength of relative humidity determines the effective strength of the overlapping effect and the effective strength of temperature determine that of the heat index. 

by Jaiyeola O. Paul | Abdullahi Ayegba | Abimaje Okolo Suleiman ""The Impact of Temperature and Relative Humidity Elevation on Mental Health of In-Patient Admitted Into Jos Teaching Hospital Jos, Plateau State, Nigeria"" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-2 , February 2020, 

URL: https://www.ijtsrd.com/papers/ijtsrd29944.pdf

Paper Url : https://www.ijtsrd.com/engineering/aeronautical-engineering/29944/the-impact-of-temperature-and-relative-humidity-elevation-on-mental-health-of-in-patient-admitted-into-jos-teaching-hospital-jos-plateau-state-nigeria/jaiyeola-o-paul

ugcapprovedjournalswithlowpublicationfees, conferenceissuepublication