Modelling of suddenly expanded flow process in supersonic Mach regime using design of experiments and response surface methodology

The present work is an attempt to model, analyze, and control the flow at the base of an abruptly expanded circular duct by using design of experiments (DOE) and response surface methodology (RSM). Tiny-jets in the form of orifice were positioned at an interval of 900, 6.5 mm from the primary axis o...

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Main Authors:	Quadros, Jaimon Dennis, Khan, Sher Afghan, A. J., Antony
Format:	Article
Language:	English English
Published:	university of Tehran 2018
Subjects:	TJ212 Control engineering
Online Access:	http://irep.iium.edu.my/64156/ http://irep.iium.edu.my/64156/ http://irep.iium.edu.my/64156/ http://irep.iium.edu.my/64156/1/64156_Modelling%20of%20Suddenly%20Expanded%20Flow.pdf http://irep.iium.edu.my/64156/2/64156_Modelling%20of%20Suddenly%20Expanded%20Flow_WOS.pdf

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recordtype	eprints
spelling	iium-641562018-06-28T02:24:12Z http://irep.iium.edu.my/64156/ Modelling of suddenly expanded flow process in supersonic Mach regime using design of experiments and response surface methodology Quadros, Jaimon Dennis Khan, Sher Afghan A. J., Antony TJ212 Control engineering The present work is an attempt to model, analyze, and control the flow at the base of an abruptly expanded circular duct by using design of experiments (DOE) and response surface methodology (RSM). Tiny-jets in the form of orifice were positioned at an interval of 900, 6.5 mm from the primary axis of the main jet of the nozzle. Experiments were conducted to measure two responses namely, base pressure without the use of micro jets or active control (WoC) and base pressure with the use of micro jets or active control (WC). Mach number (M), nozzle pressure ratio (NPR), area ratio (AR) and length to diameter ratio (L/D) were considered as the input variables (parameters), which control the outputs (i.e. base pressure). Non-linear regression models based on central composite design (CCD) and Box-Behnken design (BBD) have been developed in order to facilitate the input-output relationships. Moreover, the significance of main, square and interaction terms of the developed models have been tested by performing analysis of variance (ANOVA). The ANOVA and significance test results and their respective correlation coefficient values indicate that both the CCD and BBD regression models are statistically adequate for both the base pressure responses of without control and with control respectively. The performances of the nonlinear models have been validated for accuracy prediction by use of 15 test cases. The performance of BBD model is found to be better in forecasting base pressure for both cases of without control and with control when compared to the CCD model. university of Tehran 2018-06 Article PeerReviewed application/pdf en http://irep.iium.edu.my/64156/1/64156_Modelling%20of%20Suddenly%20Expanded%20Flow.pdf application/pdf en http://irep.iium.edu.my/64156/2/64156_Modelling%20of%20Suddenly%20Expanded%20Flow_WOS.pdf Quadros, Jaimon Dennis and Khan, Sher Afghan and A. J., Antony (2018) Modelling of suddenly expanded flow process in supersonic Mach regime using design of experiments and response surface methodology. International Journal of Computational and Applied Mechanics, 49 (1). pp. 149-160. ISSN 2423-6713 E-ISSN 2423-6705 https://jcamech.ut.ac.ir/article_64593_fc350ce7548197ac7bc168584dc497cd.pdf 10.22059/jcamech.2018.248043.221
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TJ212 Control engineering
spellingShingle	TJ212 Control engineering Quadros, Jaimon Dennis Khan, Sher Afghan A. J., Antony Modelling of suddenly expanded flow process in supersonic Mach regime using design of experiments and response surface methodology
description	The present work is an attempt to model, analyze, and control the flow at the base of an abruptly expanded circular duct by using design of experiments (DOE) and response surface methodology (RSM). Tiny-jets in the form of orifice were positioned at an interval of 900, 6.5 mm from the primary axis of the main jet of the nozzle. Experiments were conducted to measure two responses namely, base pressure without the use of micro jets or active control (WoC) and base pressure with the use of micro jets or active control (WC). Mach number (M), nozzle pressure ratio (NPR), area ratio (AR) and length to diameter ratio (L/D) were considered as the input variables (parameters), which control the outputs (i.e. base pressure). Non-linear regression models based on central composite design (CCD) and Box-Behnken design (BBD) have been developed in order to facilitate the input-output relationships. Moreover, the significance of main, square and interaction terms of the developed models have been tested by performing analysis of variance (ANOVA). The ANOVA and significance test results and their respective correlation coefficient values indicate that both the CCD and BBD regression models are statistically adequate for both the base pressure responses of without control and with control respectively. The performances of the nonlinear models have been validated for accuracy prediction by use of 15 test cases. The performance of BBD model is found to be better in forecasting base pressure for both cases of without control and with control when compared to the CCD model.
format	Article
author	Quadros, Jaimon Dennis Khan, Sher Afghan A. J., Antony
author_facet	Quadros, Jaimon Dennis Khan, Sher Afghan A. J., Antony
author_sort	Quadros, Jaimon Dennis
title	Modelling of suddenly expanded flow process in supersonic Mach regime using design of experiments and response surface methodology
title_short	Modelling of suddenly expanded flow process in supersonic Mach regime using design of experiments and response surface methodology
title_full	Modelling of suddenly expanded flow process in supersonic Mach regime using design of experiments and response surface methodology
title_fullStr	Modelling of suddenly expanded flow process in supersonic Mach regime using design of experiments and response surface methodology
title_full_unstemmed	Modelling of suddenly expanded flow process in supersonic Mach regime using design of experiments and response surface methodology
title_sort	modelling of suddenly expanded flow process in supersonic mach regime using design of experiments and response surface methodology
publisher	university of Tehran
publishDate	2018
url	http://irep.iium.edu.my/64156/ http://irep.iium.edu.my/64156/ http://irep.iium.edu.my/64156/ http://irep.iium.edu.my/64156/1/64156_Modelling%20of%20Suddenly%20Expanded%20Flow.pdf http://irep.iium.edu.my/64156/2/64156_Modelling%20of%20Suddenly%20Expanded%20Flow_WOS.pdf
first_indexed	2023-09-18T21:30:59Z
last_indexed	2023-09-18T21:30:59Z
_version_	1777412509253238784

Modelling of suddenly expanded flow process in supersonic Mach regime using design of experiments and response surface methodology

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