Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Active Control of Impinging Jets Using Bifurcating Excitations

분기 가진을 통한 충돌제트 능동 제어 연구

  • Kim, Jungwoo (Seoul National University of Science and Technology, Department of Mechanical System Design)
  • Received : 2013.03.29
  • Accepted : 2013.05.19
  • Published : 2013.06.15
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Abstract

The objective of the present study is to investigate the heat transfer characteristics of turbulent impinging jets with bifurcating excitations. Bifurcating excitations use the dual mode, dual frequency forcing, where an axial forcing frequency is equal to double the helical forcing frequency. Under the bifurcating excitation, the heat transfer significantly increases in one plane (bifurcating plane), while nearly no heat transfer occurs in the perpendicular plane (bisecting plane). This result is closely associated with the change in the vortical structures caused by the excitation.

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References

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