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5 results on '"Batul, Beenish"'

1. A critical review on the state-of-the-art and future prospects of machine learning for Earth observation operations

Author

Miralles, Pablo, Thangavel, Kathiravan, Fulvio Scannapieco, Antonio, Jagadam, Nitya, Baranwal, Prerna, Faldu, Bhavin, Abhang, Ruchita, Bhatia, Sahil, Bonnart, Sebastien, Bhatnagar, Ishita, Batul, Beenish, Prasad, Pallavi, Ortega-González, Héctor, Joseph, Harrish, More, Harshal, Morchedi, Sondes, Kumar Panda, Aman, Zaccaria Di Fraia, Marco, Wischert, Daniel, and Stepanova, Daria

Published
2023
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4. Heat Transfer in Airborne Equipment - Theoretical Model

Author

Batul, Beenish

Subjects
Teknik, Technology
Abstract

In this thesis heat transfer theory is used to develop the theoretical model to predict the temperature of the equipments used in Esrange balloon flights. The worst cases for the equipment are identified by selecting the worst environmental conditions along with the maximum and minimum power modes of equipment. The thermal control techniques are investigated to keep the temperatures of the equipment within the operating range. Transient analyses are also performed for the total flight time on the equipment to incorporate the effect of variation of external environment with altitude. Based on the analyses, a thermal control technique is suggested for the worst cases. The theoretical model is verified through a test setup as well as comparing the analyses results with data from actual flights. Validerat; 20141101 (global_studentproject_submitter)

Published
2014

5. A CFD Analysis of Wingtip Devices to Improve Lift and Drag Characteristics of Aircraft Wing

Author

Najeeb, Fatima, Batul, Beenish, and Aizaz, Ahmad

Abstract

The present study investigates the use of various wingtip devices to analyse the parameters of lift and drag for an aircraft wing. The coefficients of lift and drag are investigated in this research to optimize the wing design for enhancing the aircraft performance. A reduction in the drag produced due to wingtip vortices leads to reduced fuel consumption which contributes to the reduction in fuel emissions. The two-dimensional analysis is carried out for the selection of an apposite aerofoil by comparing the lift/drag characteristics of NACA 0012, 2415 and 23015 respectively at the velocity of 79.16 m/s at the angles of attack of 0deg,4deg,8deg,12deg,16deg and 20deg. The aerofoil section NACA 2415 is used to design the three-dimensional aircraft wing. For the analysis of the various wing tip devices the three-dimensional wing is incorporated with the spiroid winglet, blended winglet, wingtip fence and a mini-winglet. The CFD analysis for the wing designs is carried out for the take-off and landing phases of an aircraft's flight because the effect of vortices is the highest during these flight phases. The angles of attack range from 0deg to 20deg. The CFD results reveal that for the wing designs, the plain wing produced the highest drag and the blended winglet proved to be the wingtip device with the most beneficial design. The results obtained for the 30deg cant angled blended winglet and 60deg cant angled wingtip fence produces additional lift when compared to the results obtained for the counterpart designs. The results obtained from the analysis are in close correlation to the established use of the wingtip devices.

Published
2019

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