Investigation rear-end of flow structures on a 6:1 prolate spheroid by using the magnetic suspension and balance system

Takumi Ambo, Takaya Otsuki, Shuhei Taniguchi, Daiju Numata, Keisuke Asai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

To study the flow separation at the rear end of a 6:1 prolate spheroid, oil flow visualization were conducted on a model in free levitation using the 0.3-m Magnetic Suspension and Balance System. Reynolds number based on the model length was 0.5 million and the angle of attack of the model was set at 0 and 5 degrees. Complicated laminar separation patterns were observed at the rear end of the model even at zero angle of attack. To evaluate the influence of support interference, a systematic experiment was conducted with small excrescences simulating disturbance of a support system. The obtained results indicate that the excrescence has a significant influence on the separation patterns, even when its diameter is as small as 0.5 mm. The separation was delayed in the downstream of the excrescence, suggesting that the change of separation pattern is caused by the transition of laminar boundary layer behind the excrescence.

Original languageEnglish
Title of host publication32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1-12
Number of pages12
ISBN (Print)9781624104381
Publication statusPublished - 2016 Jan 1
Event32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2016 - Washington, United States
Duration: 2016 Jun 132016 Jun 17

Publication series

Name32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference

Other

Other32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2016
CountryUnited States
CityWashington
Period16/6/1316/6/17

ASJC Scopus subject areas

  • Aerospace Engineering

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  • Cite this

    Ambo, T., Otsuki, T., Taniguchi, S., Numata, D., & Asai, K. (2016). Investigation rear-end of flow structures on a 6:1 prolate spheroid by using the magnetic suspension and balance system. In 32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference (pp. 1-12). (32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference). American Institute of Aeronautics and Astronautics Inc, AIAA.