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ITS » Master Theses » Matematika Industri - S2 Posted by anis at 02/01/2007 10:19:00 • 25226 Views
MODEL MATEMATIKA DARI ALIRAN AIR DI PERMUKAAN BEBAS DIATAS GUNDUKAN BERBENTUK SEBARANG DALAM SUATU KANAL
MATHEMATIKAL MODELING OF WATER FLOWS IN THE FREE SURFACE OVER ABRITRERY SHAPE STEP IN A CHANNEL
Created by :
SAMSUDIN ( )
| Subject: | Model matematika | | Keyword: | Aliran air di permukaan bebas fungsi aliran dalam kanal gravitasi bumi free surface fluid flows |
[ Description ]
Secara teori matematika, perhitungan aliran air di permukaan bebas dimensi
dua, tak berputar, tak mampu mampat meliputi tidak hanya dalam hal penentuan dari
fungsi potensial atau fungsi aliran dalam kanal, tetapi juga batas dari daerah
penyelesaian yang merupakan variabel yang tak diketahui. Dalam penelitian ini akan
dibuat model matematika dan bentuk profil dari aliran air di permukaan bebas di
atas gundukan yang dipengaruhi oleh gravitasi bumi, dengan tinggi gundukan non-
dimensi dan lebar gundukan non-dimansi. Penyelesaian masalah aliran air di
permukaan bebas di atas gundukan yang dipengaruhi oleh gravitasi bumi digunakan
teknik perhitungan secara numerik dengan metode integral batas. Untuk memperoleh
persamaan integral batas dari aliran air di permukaan bebas didasarkan pada masalah
Riemann-Hilbert.
Pertama-tama dari bentuk fisis aliran air di permukaan bebas di atas
gundukan yang dipengaruhi oleh gravitasi bumi diubah ke dalam bentuk potensial
dengan menggunakan transformasi Schwartz-Christoffel sehingga masalahnya
menjadi masalah nilai batas campuran Riemann-Hilbert. Dengan teori rata-rata
Muskhelisvhilli, akan diperoleh persamaan integral non-linier. Selanjutnya dengan
menggunakan metode substitusi akan diperoleh persamaan integral batas bidang
fisis. Model matematika dari aliran fluida di permukaan bebas tersebut diselesaikan
dengan menggunakan perhitungan numerik.
Alt. Description
The computation of free surface fluid flows in two-dimensional, irrotational
and incompressible mathematically are not only in either potential function or stream
function, but also in solution domains boundary which make up unknown variables.
In this research will be formed mathematical modelling and profile of water flow in
the free surface over a step under the gravity effects with non-dimensioan step high
and non-dimension step wide. To solve the free surface water flows over steps under
gravity problems are used numerical computational techniques with boundary
integral method. To obtain boundary integral equations of free surface water flows
over steps, based on Riemann-Hilbert problem.
Firstly the physical shapes of the free surface water flows over steps under
the gravity effects could be changed into potential form by using Schwartz-
Christoffel transformation. By using Muskhelisvhilli average theory, non-linear
integral equations will be obtained. Further, by using substitution methods will be
obtained physical plane boundary integral equations. The mathematical method of
free surface fluid flows can be solved by using numerical computation.
| Contributor | : |
- DR. Basuki Widodo, M.Sc
Drs. Sentot Didik Surjanto, M.Si.
| | Date Create | : | 02/01/2007 | | Type | : | Text | | Format | : | pdf ; 65 pages | | Language | : | Indonesian | | Identifier | : | ITS-Master-3100002014680 | | Collection ID | : | 3100002014680 | | Call Number | : | 511.8 Sam m |
Source : Theses Industry Mathematic RT 511.8 Sam m, 2001
Coverage : ITS Community
Rights : Copyright @2001 by ITS Library. This publication is protected by copyright and permission should be obtained from the ITS Library prior to any prohibited reproduction, storage in a retrievel system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s), write to ITS Library
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