Medine Demir

E-mail

dmedine@metu.edu.tr

Department

Department of Mathematics

ORCID

0000-0002-7364-7185

Scopus Author ID

57204719954

Web of Science Researcher ID

ABA-1144-2020

Time filtered second order backward Euler method for EMAC formulation of Navier-Stokes equations Demir, Medine; Çıbık, Aytekin; Kaya Merdan, Songül (2022-12-15) © 2022 Elsevier Inc.This paper considers the backward Euler based linear time filtering method for the developed energy-momentum-angular momentum conserving (EMAC) formulation of the time dependent-incompressible Navier-St...
Fabrication of CdSexTe1-x thin films by sequential growth using double sources Demir, Medine; Terlemezoglu, M.; Parlak, Mehmet (2021-10-15) CdSexTe(1-x) (CST) ternary thin films were fabricated by stacking thermally evaporated CdSe and electron beam evaporated CdTe layers. The final structure was achieved in a stoichiometric form of approximately Cd:Se:Te = 50...
An analysis of a linearly extrapolated BDF2 subgrid artificial viscosity method for incompressible flows Demir, Medine (Elsevier BV, 2020-10-01) This report extends the mathematical support of a subgrid artificial viscosity (SAV) method to simulate the incompressible Navier-Stokes equations to better performing a linearly extrapolated BDF2 (BDF2LE) time discretizat...
A Numerical Study of a Modular Sparse Grad-Div Stabilization Method for Boussinesq Equations Demir, Medine; Kaya Merdan, Songül (2019-10-10) This study presents a modular sparse grad-div stabilization method for solving the Boussinesq equations. Unlike the usual grad-div stabilization which produces fully coupled block matrices, the proposed stabilization metho...
Numerical Investigation of the Boussinesq equations through a Subgrid Artificial Viscosity Method Demir, Medine; Kaya Merdan, Songül (null; 2019-10-04)
A family of second order time stepping methods for the Darcy-Brinkman equations Cibik, Aytekin; Demir, Medine; Kaya Merdan, Songül (Elsevier BV, 2019-04-01) This study presents an efficient, accurate, effective and unconditionally stable time stepping scheme for the Darcy-Brinkman equations in double-diffusive convection. The stabilization within the proposed method uses the i...
A Numerical study of second order time stepping methods for the boussinesq equations Demir, Medine; Kaya Merdan, Songül (null; 2018-10-21) The Boussinesq approximation is a way to solve nonisothermall flow such as natural convection prob-lems, without having to solve for the full compressible formulation of the Navier-Stokes equations.Natural convection is re...
Numerical analysis of a Family of Second Order Time Stepping Methods for Boussinesq Equations Çıbık, Aytekin Bayram; Demir, Medine; Kaya Merdan, Songül (null; 2018-07-06) —This report considers a family of second order time stepping schemes for Boussinesq system. The scheme uses the idea of curvature stabilization in which the discrete curvature of the solutions is added together with the l...
Numerical Analysis of Second Order Time Stepping Methods for the Natural Convection Problems Demir, Medine; Kaya Merdan, Songül (2018-06-27)
Doğal Konveksiyon Problemleri İçin İkinci Mertebeden Zaman Adımlaması Yöntemleri Ailesinin Sayısal Analizi Demir, Medine; Kaya Merdan, Songül (null; 2018-05-28) Doğal konveksiyon, akışkan hareketinin herhangi bir harici kaynak yerine (pompa, fan v.b. gibi) yoğunluk farklılıklarından dolayı meydana geldiği bir mekanizmadır. Doğal konveksiyon, yangından kaynaklanan sıcak hava yüksel...

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