Analyzing stretched grids and introducing acoustic black hole layers as non-reflecting boundary conditions
Language: English
Published by GRIN Verlag, GRIN Verlag Apr 2013, 2013
- Softcover
- New
Seller: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermanyBuchWeltWeit Ludwig Meier e.K.
AbeBooks seller since January 11, 2012
Condition: New
£ 46.23
Quantity: 2 available
Add to basketItem description from seller
This item is printed on demand - it takes 3-4 days longer - Neuware -Diploma Thesis from the year 2013 in the subject Engineering - Aerospace Technology, grade: 1,0, Technical University of Munich (Lehrstuhl für Aerodynamik und Strömungsmechanik), course: Computational Aeroacoustics, language: English, abstract: Stretched grids as non-reflecting boundary conditions aim at gradual under-resolution and dissipation of sinusoidal waves and are computationally costly and ineffective if not implemented properly. This defines a need for insight to enable efficient implementation. Two methods of predicting the behavior of sinusoidal waves propagating through stretched grids are presented, an initial value and a boundary value approach. The initial value problem is an approximation and has the advantage that it can be applied with many higher order accurate finite difference schemes. The boundary value problem is more exact but is not applicable for higher order methods. Both methods are verified using a two-dimensional linearized Navier-Stokes solver, which is implemented in the framework of this study. Further, acoustic black hole layers are introduced as an alternative to stretched grids. Using both methods in combination reduces the number of grid points necessary in a boundary domain drastically. All methods are improved with respect to available parameters and their performance is compared using benchmark flows. Explicit recommendations for implementation are developed. 152 pp. Englisch.…
Seller Inventory # 9783656409311
- Title
- Analyzing stretched grids and introducing acoustic black hole layers as non-reflecting boundary conditions
- Author
- Benjamin Krank
- Publisher
- GRIN Verlag, GRIN Verlag Apr 2013
- Publication year
- 2013
- Condition
- Neu
- Binding
- Taschenbuch
- Language
- English
- ISBN 10
- 3656409315
- ISBN 13
- 9783656409311
- Item weight
- 230 grams
- Dimensions
- 210x148x11 mm
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BuchWeltWeit Ludwig Meier e.K.
Bergisch Gladbach, Germany
AbeBooks seller since January 11, 2012
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BuchWeltWeit Ludwig Meier e.K.
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