Hesaplamalı akışkanlar dinamiği ile üç boyutlu karmaşık akış problemlerinin yüksek başarımlı hesaplamaları

2009-04-18
Tonkal, Ozan Çağrı
Pehlivan, Sercan
Sezer Uzol, Nilay
İşler, Veysi

Suggestions

Design and analysis of a vertical axis water turbine for river applications using computational fluid dynamics
Demircan, Eren; Aksel, Mehmet Haluk; Pınarcıoğlu, Mehmet Melih; Department of Mechanical Engineering (2014)
The main purpose of this study is to design a Darrieus rotor type vertical axis water turbine using Computational Fluid Dynamics (CFD) in order to be used in river currents. The CFD modeling is based on two dimensional numerical solution of the rotor motion using commercial Unsteady Reynolds Averaged Navier-Stokes solvers, Ansys Fluent and CFX. To validate the two dimensional numerical solution, an experimental Darrieus rotor type water turbine from literature is studied and performance of several turbulenc...
Physics informed neural networks for computational fluid dynamics
Aygün, Atakan; Karakuş, Ali; Maulik, Romit; Department of Mechanical Engineering (2023-1-17)
In this work, we use physics-informed neural networks (PINN) to model the problems generally used in computational fluid dynamics (CFD). Since PINN does not need any discretization scheme or mesh generation, this approach is easier to implement compared to conventional numerical methods. In the context of CFD problems, the effect of network parameters is shown in the convergence and the accuracy of the solution. The solutions to forward problems are chosen with simple geometries since as the nonlinearity in...
Detailed design of shell-and-tube heat exchangers using CFD
Özden, Ender; Tarı, İlker; Department of Mechanical Engineering (2007)
Traditionally Shell-and-tube heat exchangers are designed using correlation based approaches like Kern method and Bell-Delaware method. With the advances in Computational Fluid Dynamics (CFD) software, it is now possible to design small heat exchangers using CFD. In this thesis, shell-and-tube heat exchangers are modeled and numerically analyzed using a commercial finite volume package. The modeled heat exchangers are relatively small, have single shell and tube passes. The leakage effects are not taken int...
Hesaplamalı kalp elektrofizyolojisi problemine etkin yaklaşımlar
Paşaoğlu, Özgür; Göktepe, Serdar (null; 2019-09-02)
This work is concerned with the development of numerically efficient approaches to integrated cardiac electrophysiology within the bidomain setting. While the excitation of cardiac tissue involves two field variables, namely the transmembrane potential and the extracellular potential, the electric activity of the torso involves the extracellular field only. Two partial differential equations define the electrophysiological behavior of the heart, and one of these equations contains a highly non-linear curren...
Comparison of computational image inpainting methods
Kurt, Cande; Batmaz, İnci; Ulusoy, İlkay; Department of Statistics (2018)
Image processing plays an important role in today’s world. It has been using in medicine, quality control, defense industry, fine arts to ease for our lives. There are many applications in these fields such as tumor detection, license plate detection, edge detection, recognition of handwritten digits, filtering for noise reduction, restoring old photographs, and the like. The aim of image processing can be divided into five groups: visualization to observe the objects that are not visible, image sharpening ...
Citation Formats
O. Ç. Tonkal, S. Pehlivan, N. Sezer Uzol, and V. İşler, “Hesaplamalı akışkanlar dinamiği ile üç boyutlu karmaşık akış problemlerinin yüksek başarımlı hesaplamaları,” presented at the 1. Ulusal Yüksek Başarım ve Grid Konferansı 15 - 18 Nisan 2009, Ankara, Türkiye, 2009, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/87129.