Graduation Semester and Year
2019
Language
English
Document Type
Thesis
Degree Name
Master of Engineering in Aerospace Engineering
Department
Mechanical and Aerospace Engineering
First Advisor
Frank Lu
Abstract
This study investigates the feasibility of using continuous wave lasers and high-speed CMOS cameras together in 2D particle image velocimetry (PIV) which is a widely-used non-intrusive method in experimental aerodynamics. In order to validate the setup, laminar and turbulent boundary layers over a flat plate with elliptical leading edge are examined in a low-speed wind tunnel. Before the experiments, the suitability of the elliptical-nose flat plate is determined (i.e. pressure gradient over the surface and separation), and the free-stream conditions (flow velocity and test section turbulence) are measured. To strengthen the validation of the setup, numerical simulations are added to the results from the boundary layer theory. The experiments are conducted for two different flow speeds; 4 m/s and 17 m/s with corresponding Reynolds numbers of 72,000, 492,000 respectively. The planar PIV setup is designed following the common practice, and the problems are identifi ed based on the results. Suggestions to improve the setup and possible future work are discussed.
Keywords
Particle image velocimetry, CMOS camera, Continuous wave laser, Low-speed aerodynamics, Elliptica-nose flat plate
Disciplines
Aerospace Engineering | Engineering | Mechanical Engineering
License
This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 International License.
Recommended Citation
Gencler, Bunyamin, "AN EXPLORATORY STUDY ON CONTINUOUS WAVE LASER AND HIGH-SPEED CAMERA COMBINATION IN PLANAR PARTICLE IMAGE VELOCIMETRY FOR LOW SPEED FLOWS" (2019). Mechanical and Aerospace Engineering Theses. 746.
https://mavmatrix.uta.edu/mechaerospace_theses/746
Comments
Degree granted by The University of Texas at Arlington