Affiliations: Department of Aerospace Engineering, Korea Air Force
Academy, Namil-myun, Chungwon-gun, Chungbuk-Do, 363-849, Korea. E-mail:
myongsohn@hanmail.net | Department of Mechanical Engineering, Korea Air Force
Academy, Namil-myun, Chungwon-gun, Chungbuk-Do, 363-849, Korea | Department of Aeronautical Science and Flight
Operation, Korea Aerospace University, Hwajeon-dong, Deokyang-gu, Goyang-city,
Gyeonggi-Do, 412-791, Korea
Abstract: An off-surface visualization method using micro water droplets and a
laser beam sheet was developed. The average size of the water droplets
generated by the home-style ultrasonic humidifier was about 5-10 μm. This
method was pollution-free, eliminated the problem of toxicity, and provided a
sufficient density of tracing particles for good visibility. The method was
successfully applied to a visualization of the complex vortex flow of a
double-delta wing with strake.
Keywords: Micro Water Droplets, Off-surface Visualization, Delta-wing, Vortex Flow
