Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
권호 표지

Experimental Study on Turbulent Characteristics of Swirling Flow in 90$^{\circ}$ Degree Circular Tube by Using a PIV Technique

PIV기법을 이용한 원헝단면을 갖는 90$^{\circ}$ 곡관내의 선회유동의 난류특성에 관한 실험적 연구

  • 장태현 (경남대학교 기계자동화공학부) ;
  • 이해수 (경남대학교 대학원 기계공학과)
  • Published : 2003.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

An experimental investigation was performed to study the turbulent characteristics of swirling flow a 90$^{\circ}C$ circular tube for Re = 10,000, 15,000 and 20,000. 2D-PIV(Particle Image Velocimetry)technique was employed to measure the fluctuation velocity field. The results include spatial distributions of mean velocity vectors, turbulence intensity and turbulence kinetic energy. The axial and radial turbulence intensities, and kinetic energy profiles show double-peak structures in the inlet region of the 90 degree bend and the profiles are disappeared along the test tube with decaying the swirl intensity.

Keywords