Capa do livro de Orthogonal Decomposition Method
Título do livro:

Orthogonal Decomposition Method

Orthogonal Decomposition Method with Applications to Swirling Fluid Dynamics

LAP LAMBERT Academic Publishing (2012-02-09 )

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ISBN- 1 3:

978-3-8465-8801-7

ISBN- 1 0:
3846588016
EAN:
9783846588017
Idioma do livro:
Inglês
Anotações e citações/ texto breve:
The hydrodynamic instability arising under the form of a precession flow, named the vortex rope, creates high-pressure unsteady fluctuations on the walls of the draft tube of a Francis hydropower turbine, leading to a poor performance of the turbine including fatigue damage. Modeling of the phenomena and the numerical investigation of the hydrodynamic instability of this swirling system were tasks that have been assessed in this book. As an alternative to classical methods, the present book proposes a new approach of the analysis of the swirling flows based on a recently mathematical method of spectral collocation with orthogonal decomposition. The mathematical model presented in this book can recover the information in the prediction of the turbine characteristics without computing the full three-dimensional unsteady flow. As a result, this book provides valuable tools for assessing the turbine behavior at off-design operating regimes in the early stages of runner design. Mathematical instruments offered in this book give a transferable knowledge in approaching interdisciplinary problems that occur in modern science, which can be applied to a number of different disciplines.
Editora:
LAP LAMBERT Academic Publishing
Website:
https://www.lap-publishing.com/
Por (autor):
Diana Alina Bistrian
Número de páginas:
160
Publicado em:
2012-02-09
Stock:
Disponível
Categoria:
Matemática
Preço:
59 €
Palavras chave:
Numerical Methods, Computational Mathematics, spectral methods, Francis turbine, eigenvalue problem, swirling fluid dynamics, hydrodynamic instability, orthogonal decomposition, polynomial decomposition, hydropower turbine, vortex rope, Q-vortex, projection methods, confined vortices, swirling flows, absolute instability, convective instability

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