Development of a Navier Stokes Solver for high fidelity simulatiom of wind turbine noise

Date

2013-09-11

Author

Cengiz, Kenan
Özyörük, Yusuf

Metadata

Show full item record

Item Usage Stats

100
views

0
downloads

In this report, the first stage of the development process of a flow solver is presented. The solver is intended for high-fidelity simulation of wind turbine aeroacoustics. At this stage of the code development, compressible Euler solver, which has several discretization enhancements for convection term, is tested, validated and discussed. The enhancements include symmetry preservation of the discretized forms, fourth order accuracy and optimization for low-dispersion (DRP), all of which would be quite beneficial for low-level turbulence modeling and acoustic simulation problems where interference of possible numerical noise with small-scale eddies and high-frequency sound is not desired at all. The results show that the solver works at promised order of accuracy and exhibit good conservation properties, being a good start for the ultimate goal of successfully resolving turbulence and acoustic propagation.

URI

aiac.ae.metu.edu.tr/2013
https://hdl.handle.net/11511/80351

Conference Name

7. ANKARA INTERNATIONAL AEROSPACE CONFERENCE (2013)

Collections

Department of Aerospace Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Development of de-icing and anti-icing solutions for aircraft on ground and analysis of their flow instability characteristics Körpe, Durmuş Sinan; Özgen, Serkan; Department of Aerospace Engineering (2008) In this thesis, development process of de-icing and anti-icing solutions and their flow instability characteristics are presented. In the beginning, the chemical additives in the solutions and their effects on the most critical physical properties of the solutions were investigated. Firstly, chemical additives were added to glycol and water mixtures at different weight ratios one by one in order to see their individual effects. Then, the changes in physical properties were observed when the chemicals were a...
Development of a quasi 2-DH model for numerical modeling of shoreline changes Özsoy, Can; Baykal, Cüneyt; Department of Civil Engineering (2021-2-15) The scope of this thesis is to develop a quasi-2-dimensional numerical model to numerically modeling shoreline response under wave action in the vicinity of various coastal defense implementation. The developed quasi-2-dimensional model is applicable in both the medium and the long term. The model is utilizing a spectral wave model, which solves the energy balance equation. Longshore sediment transport is solved through the bulk sediment transport formula, and it is distributed over the surf-zone. The aim i...
A computer-supported methodology for requirements modelling in CIM for small and medium size enterprises: A demonstration in Apparel Industry Hashemipour, M; Anlagan, O; Kayaligil, S (1997-01-01) This paper discusses the first phase of a computer-assisted methodology for implementing CIM within small and medium enterprises. Some of the existing methodologies and tools were furnished by extra items to ease the process for small and medium size manufacturing companies. The methodology aims at using limited expertise, limited staff, and minimising cost. The existing analysis tools (i.e. DFDs, ELH, and tools in the GRAI methodology) were modified and a new tool was developed (PIFR) to shed light on the ...
Development of internet based seismic vulnerability assessment tools Türer, Ahmet (2005-06-01) Seismic assessment methods are commonly divided into three phases: a) quick assessment b) detailed analysis and c) advanced methods. The dilemma between the large number of buildings to be assessed and low number of technical personnel and funding to assess buildings makes large cities wait on halt. Internet Earthquake Project (InEP) initiated as a Middle East Technical University BAP project in full conjunction with NATO-SfP977231 project, targets internet users to process the buildings in which they resid...
An improvement to linear-elastic procedures for seismic performance assessment Gunay, Mehmet Selim; Sucuoğlu, Haluk (Wiley, 2010-07-10) An improved linear-elastic analysis procedure is developed in this paper as a simple approximate method for displacement-based seismic assessment of the existing buildings. The procedure is mainly based on reducing the stiffness of structural members that are expected to respond in the inelastic range in a single global iteration step. Modal spectral displacement demands are determined from the equal displacement rule. Response predictions obtained from the proposed procedure are evaluated comparatively by ...

Citation Formats

K. Cengiz and Y. Özyörük, “Development of a Navier Stokes Solver for high fidelity simulatiom of wind turbine noise,” presented at the 7. ANKARA INTERNATIONAL AEROSPACE CONFERENCE (2013), Ankara, Türkiye, 2013, Accessed: 00, 2021. [Online]. Available: aiac.ae.metu.edu.tr/2013.