18.11.2012 Views

Download Abstract Book - the ICAAM 2012 Conference in Gumushane

Download Abstract Book - the ICAAM 2012 Conference in Gumushane

Download Abstract Book - the ICAAM 2012 Conference in Gumushane

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

On <strong>the</strong> Numerical Solution of a Diffusion Equation Aris<strong>in</strong>g <strong>in</strong> Two-phase Fluid Flow<br />

A.S. Erdogan and A.U. Sazaklioglu<br />

<strong>Abstract</strong><br />

Department of Ma<strong>the</strong>matics, Fatih University, Istanbul, Turkey<br />

Many applied problems <strong>in</strong> fluid mechanics and ma<strong>the</strong>matical biology were formulated as <strong>the</strong> math-<br />

ematical model of partial differential equations. Fluid flow <strong>in</strong>side capillaries were also considered with<br />

ma<strong>the</strong>matical models [1]-[3]. But it is known that due to <strong>the</strong> lack of some data and/or coeffi cients, many<br />

real-life problems are modeled as <strong>in</strong>verse problems [4]-[5]. In this paper, specific model<strong>in</strong>g of <strong>the</strong> fluid<br />

flow for an unknown pressure is modeled as a two-phase flow equation. The unknown pressure act<strong>in</strong>g <strong>in</strong><br />

<strong>the</strong> model can be identified by us<strong>in</strong>g <strong>the</strong> overdeterm<strong>in</strong>ed condition. Difference schemes are constructed<br />

for obta<strong>in</strong><strong>in</strong>g approximate solutions of this <strong>in</strong>verse problem. Stability estimates for <strong>the</strong> solution of <strong>the</strong>se<br />

difference schemes are established.<br />

References<br />

[1] F. Loth, P.F. Fischer, N. Arslan, C.D. Bertram, S.E. Lee, T.J. Royston, W.E. Shaalan and H.S.<br />

Bassiouny, Transitional flow at <strong>the</strong> venous anastomosis of an arteriovenous graft: Potential activation of<br />

<strong>the</strong> ERK1/2 mechanotransduction pathway, Journal of Biomechanical Eng<strong>in</strong>eer<strong>in</strong>g , 125, 49-61, 2003.<br />

[2] N. Arslan, A.S. Erdogan, A. Ashyralyev, Computational fluid flow solution over endo<strong>the</strong>lial cells<br />

<strong>in</strong>side <strong>the</strong> capillary vascular system, International Journal for Numerical Methods <strong>in</strong> Eng<strong>in</strong>eer<strong>in</strong>g, 74(11),<br />

1679-1689, 2008.<br />

[3] A.S.Erdogan, A note on <strong>the</strong> right-hand side identification problem aris<strong>in</strong>g <strong>in</strong> biofluid mechanics,<br />

<strong>Abstract</strong> and Applied Analysis, <strong>2012</strong>.<br />

[4] V.T. Borukhov, P.N. Vabishchevich, Numerical solution of <strong>the</strong> <strong>in</strong>verse problem of reconstruct<strong>in</strong>g<br />

a distributed right-hand side of a parabolic equation, Computer Physics Communications, 126, 32-36,<br />

2000.<br />

[5] A. Ashyralyev, A.S. Erdogan, On <strong>the</strong> numerical solution of a parabolic <strong>in</strong>verse problem with <strong>the</strong><br />

Dirichlet condition, International Journal of Ma<strong>the</strong>matics and Computation, 11(J11), 73-81, 2011.<br />

Page 39

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!