Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Atmosferik geçiş yapan araç etrafında navier- stokes denklemleri ile üç boyutlu hipersonik akış analizi
Date
2014-06-01
Author
Özgün, Muharrem
Eyi, Sinan
Metadata
Show full item record
Item Usage Stats
234
views
0
downloads
Cite This
Bu çalışmada hipersonik akışlar için kullanılabilecek isabetli ve etkin bir hesaplamalı akışkanlar dinamiği kodu geliştirilmesi amaçlanmaktadır. Akış analizi üç boyutlu Navier-Stokes denklemlerini temel almaktadır. Bu denklemler Newton metoduyla çözülmekte ve Jacobian matrislerini hesaplamak için analitik metot kullanılmaktadır. Model olarak alınan AS-202 Apollo uzay aracı geometrisi üzerinde akış parametreleri ve taşınımla ısı transferi analiz edilecektir. Ayrıca nümerik olarak stabil olan ve genelde hipersonik akış uygulamalarında iyi tahminler sağlayan Spalart-Allmaras türbülans modeli kullanılarak hipersonik akış için türbülanslı akış analizi yapılacaktır.
Subject Keywords
Hipersonik akış
,
Taşınımla Isı transferi
,
Türbülans modellemesi
,
Hesaplamalı akışkanlar dinamiği
,
Hypersonic flow
,
Convective heat transfer
,
Turbulence modeling
,
Computational fluid dynamics
URI
https://hdl.handle.net/11511/74498
Journal
Havacılık ve Uzay Teknolojileri Dergisi
Collections
Department of Aerospace Engineering, Article
Suggestions
OpenMETU
Core
Three dimensional hypersonic flow analysis around a reentry vehicle using navier‐stokes equations
Özgün, Muharrem; Eyi, Sinan (null; 2016-07-11)
The purpose of this study is to develop an accurate and efficient CFD code that can be used in hypersonic flows. The flow analysis is based on the three dimensional Navier-Stokes equations. These equations are solved by using Newton/Newton-Gmres method. The analytical method is used to calculate the Jacobian matrix. Flow parameters and convective heat transfer are analyzed on Apollo AS-202 Command Module. Also, algebraic Baldwin-Lomax turbulence model and one-equation Spalart-Allmaras turbulence model is us...
Improving flow structure and natural convection within fin spacings of plate fin heat sinks
Özet, Mehmet Erdem; Tarı, İlker; Department of Mechanical Engineering (2015)
The main objectives of this thesis are to numerically investigate the previously observed recirculation zones and longitudinal vortices that occur in low fin height plate finned horizontal heat sinks and to improve the flow structures and heat transfer in these zones using various approaches with the help of simulations performed using commercially available CFD software. The approaches used for improvements are replacing the outer most fins with higher ones, introducing gaps on the length of the fins in va...
Design and performance analysis of double-flux supersonic air ejector
Bozkır, Berk; Alemdaroğlu, Hüseyin Nafiz; Department of Aerospace Engineering (2018)
The main purpose of this study is to design a double-flux supersonic ejector and to evaluate its performance associated with its entrainment ratio by employing Computational Fluid Dynamics methods as well as one-dimensional approach. Since the performance of the ejector systems is strongly dependent on the design, this study concentrates on maximizing the entrainment ratio by varying the corresponding angles and the lengths of the critical segments such as mixing angle, divergence angle, mixing throat lengt...
Implementation and comparison of turbulence models on a flat plate problem using a Navier-Stokes solver
Genç, Balkan Ziya; Aksel, Mehmet Haluk; Department of Mechanical Engineering (2003)
For turbulent flow calculations, some of the well-known turbulence models in the literature are applied on a previously developed Navier-Stokes solver designed to handle laminar flows. A finite volume formulation, which is cell-based for inviscid terms and cell-vertex for viscous terms, is used for numerical discretization of the Navier-Stokes equations in conservative form. This formulation is combined with one-step, explicit time marching Lax-Wendroff numerical scheme that is second order accurate in spac...
Hypersonic Flow Analysis of Re-entry Vehicles Using Three Dimensional Navier-Stokes Equations
Özgün, Muharrem; Eyi, Sinan (2015-07-27)
The purpose of this study is to develop an accurate and efficient CFD code that can be used in hypersonic flows. The flow analysis is based on the three dimensional Navier-Stokes equations. The analytical method is used to calculate the Jacobian matrix. Flow parameters and convective heat transfer are analyzed on Apollo AS-202 Command Module. Also, algebraic Baldwin-Lomax turbulence model is used to analyze hypersonic turbulent flow and the one-equation Spalart-Allmaras turbulence model will be implemented ...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. Özgün and S. Eyi, “Atmosferik geçiş yapan araç etrafında navier- stokes denklemleri ile üç boyutlu hipersonik akış analizi ,”
Havacılık ve Uzay Teknolojileri Dergisi
, pp. 71–77, 2014, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/74498.