Fuzzy-based prediction for suddenly expanded axisymmetric nozzle flows with microjets

Quadros, Jaimon Dennis and P, Suhas and Khan, Sher Afghan and Aabid, Abdul and Baig, Muneer and Mogul, Yakub I. (2022) Fuzzy-based prediction for suddenly expanded axisymmetric nozzle flows with microjets. Bulletin of the Polish Academy of Sciences: Technical Sciences, 70 (5). pp. 1-11. ISSN 2300-1917

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Abstract

The current research focuses on the implementation of the fuzzy logic approach for the prediction of base pressure as a function of the input parameters. The relationship of base pressure (β) with input parameters, namely, Mach number (M), nozzle pressure ratio (η), area ratio (α), length-to-diameter ratio (ξ ), and jet control (ϑ) is analyzed. The precise fuzzy modeling approach based on Takagi and Sugeno’s fuzzy system has been used along with linear and non-linear type membership functions (MFs), to evaluate the effectiveness of the developed model. Additionally, the generated models were tested with 20 test cases that were different from the training data. The proposed fuzzy logic method removes the requirement for several trials to determine the most critical input parameters. This will expedite and minimize the expense of experiments. The findings indicate that the developed model can generate accurate predictions

Item Type:	Article (Journal)
Uncontrolled Keywords:	base pressure; Mach number; fuzzy modeling
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL780 Rockets
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Sher Afghan Khan
Date Deposited:	31 Oct 2022 09:27
Last Modified:	31 Oct 2022 09:27
URI:	http://irep.iium.edu.my/id/eprint/100858

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