Study of flow past elliptic and circular cylinders using direct numerical simulation

Flow over elliptic cylinders can be considered prototypical of flow over a range of bluff bodies since the geometry allows one to study the effect of both thickness and angle-of-attack on the flow field. Therefore a careful study of this flow should provide valuable insight into the phenomenon of unsteady separation and the structure of bluff body wakes. With this in mind, a single-domain, spectral collocation technique has been developed to simulate the full three-dimensional incompressible flow over elliptic cylinders. Results of two- and three-dimensional simulations for a range of flow and geometric parameters are presented. The results are compared with available experimental and numerical data and it is found that important quantities like the Strouhal number and lift and drag coefficients match well with established values.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Applied Mechanics

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Mittal, Rajat

Contributors dc:contributor

• Balachandar, S.

• Applied Mechanics
• Engineering, Mechanical
• Physics, Fluid and Plasma

Statement dc:rights

• Copyright 1995 Mittal, Rajat

Language dc:language

eng

Identifier

AAI9624440
(UMI)AAI9624440

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/22240