İki hidrodinamik programın karşılaştırılması

Download

index.pdf

Date

2019-10-01

Author

Oğuz, Elif

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

133
views

79
downloads

Açık deniz yapılarının zaman ve maliyet kısıtlamaları sebebiyle, tasarımın ilk aşamasında sayısal metotlara ihtiyaç duyulur. Modellemenin güvenilir şekilde yapılıp yapılamayacağını anlamak için tasarıma başlamadan önce kıyaslama çalışmaları yürütülmektedir. Karşılaştırma çalışması için, genellikle, üzerinde çalışılan tasarıma geometrik olarak en yakın yapı seçilir. Geometrik benzerliğin yanı sıra seçilecek karşılaştırma çalışmasının gerekli verilerine rahatlıkla ulaşılıp ulaşılamayacağı önemlidir. Sonrasında, yayınlanmış olan bu karşılaştırma çalışması yeniden modellenip sonuçları ile kıyaslanır. Seçilen yazılımlar ya da açık kaynaklı kodlar bazı teorik kabullere ve bazen basitleştirmelere dayandığından, çoğu zaman araştırmacılar farklı sayısal programlar kullanmayı tercih ederler. Bu çalışmada açıkdeniz yapılarının hidrodinamik analizinde yaygın olarak kullanılan MIT tarafından geliştirilmiş WAMIT programı ile Fransa’daki Nantes laboratuvarındaki araştırmacılar tarafından geliştirilen açık kaynaklı kod NEMOH kullanılarak silindir bir yapı modellenmiş ve her iki yazılımın avantajları ile dezavantajları tartışılmıştır.

Subject Keywords

Hydrodynamics, Numerical modeling, Open-source code

URI

https://hdl.handle.net/11511/47570

Journal

Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi

DOI

https://doi.org/10.25092/baunfbed.631233

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Development of a multigrid accelerated euler solver on adaptively refined two- and three-dimensional cartesian grids Çakmak, Mehtap; Aksel, Mehmet Haluk; Department of Mechanical Engineering (2009) Cartesian grids offer a valuable option to simulate aerodynamic flows around complex geometries such as multi-element airfoils, aircrafts, and rockets. Therefore, an adaptively-refined Cartesian grid generator and Euler solver are developed. For the mesh generation part of the algorithm, dynamic data structures are used to determine connectivity information between cells and uniform mesh is created in the domain. Marching squares and cubes algorithms are used to form interfaces of cut and split cells. Geome...
Multi-objective performance based design optimization of steel structures Eser, Hasan; Hasançebi, Oğuzhan; Yakut, Ahmet; Department of Civil Engineering (2021-5) Seismic performance of structures designed in accordance with conventional force-based design (FBD) codes can vary significantly since (1) estimation and distribution of earthquake loads are based on initial stiffness of members and (2) force reduction factors are based on the rough assumption that all members will yield simultaneously. In recent decades, attempts to predict the seismic performance of structures resulted in the development of several guidelines for evaluation and rehabilitation of existing ...
Conceptual quantity modeling of single span highway bridges by regression, neural networks and case based reasoning methods Aşıkgil, Mert; Sönmez, Rifat; Department of Civil Engineering (2012) Conceptual estimation techniques play an important role in determining the approximate costs of construction projects especially during feasibility stages. Moreover, pre-design estimates are also crucial for the contractors. With the help of the conceptual predictions companies can determine approximate project costs and can gain several advantages before tendering phase. The main objective of this thesis is to focus on modeling of quantities instead of costs and to develop quantity take-off models for pre-...
Static and dynamic aeroelastic analysis of a very light Aircraft Demirer, Halime Gül; Kayran, Altan; Department of Aerospace Engineering (2021-9-10) Aircraft design processes need to ensure that the aircraft is aeroelastically stable within its operational envelope. This thesis presents an overview of the static aeroelastic, flutter and gust response analysis of a very light aircraft. MSC.FlightLoads and MSC.Nastran are used for aeroelastic modeling and analysis. The methods to be used in the aeroelastic analysis of the VLA are tested on the AGARD 445.6 wing, and the results are in good agreement with the literature. Aeroelastic model corrections such a...
Developing a structural optimization software for efficient and practical optimum design of real-world steel structures Korucu, Aytaç; Hasançebi, Oğuzhan; Department of Civil Engineering (2022-8-10) Structural engineers have to design not only safe and practical buildings in a reasonably short period but also guarantee that the design generated should be cost-efficient. However, the design of real-world structures in a traditional way is an extremely laborious and time-consuming task, and final designs are often uneconomical. In this study, a computationally efficient, design-driven optimization technique (Guided Evolution Strategy Optimization, GES) is developed for the optimal design of real-world st...

Citation Formats

E. Oğuz, “İki hidrodinamik programın karşılaştırılması,” Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi, pp. 600–609, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47570.