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Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN Print: 1065-3090
ISSN Online: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.2013004283
pages 263-277

VISUALIZATION OF LAMINAR SEPARATION BUBBLES USING TEMPERATURE-SENSITIVE LIQUID CRYSTALS

Meraj Mohebi
BSc, MSc, PhD in Mechanical Engineering, Thermal Power & Fluids
Schulich School of Engineering, University of Calgary
Shan Zhong
School of Mechanical, Aerospace and Civil Engineering, Manchester University, Manchester, UK, M13 9PL

ABSTRACT

In this paper, the liquid crystal thermography technique is used to study the heat transfer characteristics of a laminar separation bubble developing along a heated flat plate. The experiments are carried out in a water tunnel at a freestream velocity of 0.08, 0.09, 0.1, and 0.15 m·s−1, respectively. From this experiment, a visual impression of the thermal footprint of the laminar separation bubble is obtained, the distribution of the heat transfer rate across the bubble is acquired and its location and size are also obtained.