Numerical Simulation Of Supercritical Flow At Abrupt Expansion Structure With Higher Order Scheme

In the design of hydraulic structures, it is common to deal with the supercritical flow. Abrupt expansion structure represents a type of transition often constructed in manmade hydraulic structure to cater the geometry difference. It is important to cater the design of such transition especially w...

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Main Author:	Lim, Jia Jun
Format:	Thesis
Language:	English
Published:	2019
Subjects:	T Technology
Online Access:	http://eprints.usm.my/55196/1/Numerical%20Simulation%20Of%20Supercritical%20Flow%20At%20Abrupt%20Expansion%20Structure%20With%20Higher%20Order%20Scheme_Lim%20Jia%20Jun_Redac_2019_ESAR.pdf
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spelling	my-usm-ep.551962022-10-06T08:00:11Z Numerical Simulation Of Supercritical Flow At Abrupt Expansion Structure With Higher Order Scheme 2019-05-01 Lim, Jia Jun T Technology TC Hydraulic engineering. Ocean engineering In the design of hydraulic structures, it is common to deal with the supercritical flow. Abrupt expansion structure represents a type of transition often constructed in manmade hydraulic structure to cater the geometry difference. It is important to cater the design of such transition especially when it involves flow with high velocity. The author developed a two-dimensional depth-averaged model (DA-CIP model) incorporated with Constrained Interpolation Profile (CIP) scheme to increase the accuracy of the numerical model. This study tested the DA-CIP model with verification procedure against analytical solution of dam break flow problem. The author used the DA-CIP model to simulate the supercritical flow phenomena at abrupt expansion channel. The DA-CIP model was capable to reproduce the phenomena mentioned with the flow features such as the formation of demarcation line, zone of constant depth and velocity and the cross waves at the downstream, as well as the reflecting mechanism at the sidewall. The simulated results (without bottom shear stress) was verified with analytical solution and different degree of agreement was observed. This study developed a physical experimental model that reproduced the high-velocity flow at sudden expansion channel for validation purposes. The DA-CIP model shows a high R2 value of 0.9702 for case with Fr=2.45 and 0.9898 for case with Fr =2.50 when validated with experimental data while relatively low R2 value were obtained when using FLOW-3D model. 2019-05 Thesis http://eprints.usm.my/55196/ http://eprints.usm.my/55196/1/Numerical%20Simulation%20Of%20Supercritical%20Flow%20At%20Abrupt%20Expansion%20Structure%20With%20Higher%20Order%20Scheme_Lim%20Jia%20Jun_Redac_2019_ESAR.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Penyelidikan Kejuruteraan Sungai dan Saliran Bandar
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	T Technology T Technology
spellingShingle	T Technology T Technology Lim, Jia Jun Numerical Simulation Of Supercritical Flow At Abrupt Expansion Structure With Higher Order Scheme
description	In the design of hydraulic structures, it is common to deal with the supercritical flow. Abrupt expansion structure represents a type of transition often constructed in manmade hydraulic structure to cater the geometry difference. It is important to cater the design of such transition especially when it involves flow with high velocity. The author developed a two-dimensional depth-averaged model (DA-CIP model) incorporated with Constrained Interpolation Profile (CIP) scheme to increase the accuracy of the numerical model. This study tested the DA-CIP model with verification procedure against analytical solution of dam break flow problem. The author used the DA-CIP model to simulate the supercritical flow phenomena at abrupt expansion channel. The DA-CIP model was capable to reproduce the phenomena mentioned with the flow features such as the formation of demarcation line, zone of constant depth and velocity and the cross waves at the downstream, as well as the reflecting mechanism at the sidewall. The simulated results (without bottom shear stress) was verified with analytical solution and different degree of agreement was observed. This study developed a physical experimental model that reproduced the high-velocity flow at sudden expansion channel for validation purposes. The DA-CIP model shows a high R2 value of 0.9702 for case with Fr=2.45 and 0.9898 for case with Fr =2.50 when validated with experimental data while relatively low R2 value were obtained when using FLOW-3D model.
format	Thesis
qualification_level	Master's degree
author	Lim, Jia Jun
author_facet	Lim, Jia Jun
author_sort	Lim, Jia Jun
title	Numerical Simulation Of Supercritical Flow At Abrupt Expansion Structure With Higher Order Scheme
title_short	Numerical Simulation Of Supercritical Flow At Abrupt Expansion Structure With Higher Order Scheme
title_full	Numerical Simulation Of Supercritical Flow At Abrupt Expansion Structure With Higher Order Scheme
title_fullStr	Numerical Simulation Of Supercritical Flow At Abrupt Expansion Structure With Higher Order Scheme
title_full_unstemmed	Numerical Simulation Of Supercritical Flow At Abrupt Expansion Structure With Higher Order Scheme
title_sort	numerical simulation of supercritical flow at abrupt expansion structure with higher order scheme
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Penyelidikan Kejuruteraan Sungai dan Saliran Bandar
publishDate	2019
url	http://eprints.usm.my/55196/1/Numerical%20Simulation%20Of%20Supercritical%20Flow%20At%20Abrupt%20Expansion%20Structure%20With%20Higher%20Order%20Scheme_Lim%20Jia%20Jun_Redac_2019_ESAR.pdf
_version_	1747822320334929920

Numerical Simulation Of Supercritical Flow At Abrupt Expansion Structure With Higher Order Scheme

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