Inverse design of 2-D subsonic ducts using flexible string algorithm

The duct inverse design in fluid flow problems usually involves finding the wall shape associated with a prescribed distribution of wall pressure or velocity. In this investigation, an iterative inverse design method for 2-D subsonic ducts is presented. In the proposed method, the duct walls shape i...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Inverse problems in science and engineering Jg. 17; H. 8; S. 1037 - 1057
Hauptverfasser: Nili-Ahmadabadi, Mahdi, Durali, Mohammad, Hajilouy-Benisi, Ali, Ghadak, Farhad
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Taylor & Francis 01.01.2009
Schlagworte:
2-D subsonic duct
Algorithms
Deformation
Ducts
flexible string algorithm
Inverse design
Stress concentration
Strings
Wall pressure
Walls
ISSN:1741-5977, 1741-5985
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The duct inverse design in fluid flow problems usually involves finding the wall shape associated with a prescribed distribution of wall pressure or velocity. In this investigation, an iterative inverse design method for 2-D subsonic ducts is presented. In the proposed method, the duct walls shape is changed under a novel algorithm based on the deformation of a virtual flexible string in flow. The deformation of the string due to the local flow conditions resulting from changes in wall geometry is observed until the target shape satisfying the prescribed wall's pressure distribution is reached. The flow field at each step is analysed using Euler equations and the advection upstream splitting method method. Some validation test cases and a design example are presented here which show the robustness and flexibility of the method in handling complex geometries. The method is a physical and quick converging approach and can efficiently utilize commercial flow analysis software.
Bibliographie:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1741-5977
1741-5985
DOI:10.1080/17415970903047451