Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
권호 표지

A Study on Unsteady Flow measurement using Laser Doppler Velocimeter in Curved Duct

곡관에서 laser유속계를 이용한 비정상유동 계측에 대한 연구

  • 조병기 (조선대학교 병설, 공업전문대학)
  • Published : 1996.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

In the present study, the unsteady in a square-selctional 180.deg. curved duct are experimentally investigated. The experimental study using air in a square-sectional 180.deg. curved duct is carried out to measure axial velocity distributions with data acquisition and processing system. In this system, Rotating Machinery Resolver(RMR) and PHASE Software are used to obtain the results of unsteady flows. In conclusion, the exact measurement of unsteady flow using LDV system depends upon uniformity of metreials, duct thickness, and scattered particles.

Keywords

References

  1. 日本機械學會論文集(B編) v.48 no.425 U 字管內夜體の自由振動流だの解析 근강종일;정구학;전천화즉
  2. Bul. of the JSME v.29 no.256 Pulsating Flow Curved Pipes (3rd Report, Axial Velocity Profile) Sumida, M;Sudou, K
  3. Bull. of the JSME v.58 no.552 Fully Developed Intermittent Flow in a Curved Tube Komai, Y;Tanishita, K
  4. Bull of the JSME v.59 no.559 On the Motion of a Tracer Particle in Unsteady Flows (1st Report, Numerical analysis of the Motion of a Spherical Particle in Oscillatory Flows at Low Reynolds Numbers) Muraoka, M;Kumagai, T
  5. Bull. of the JSME v.57 no.533 Numerical ivestigat-ions on Fully-Developed and Unsteady Flows in a Curved Duct Sugiyama, S;Yamamoto, M;Nishikawa, H;Oda, Y
  6. J. Hydraulics and Pneumatics v.11 no.2 Oscillatory Flow in the Inlet Region of Circular Tube (the 2nd Report, An Approximate Solution and the Unsteady Viscous Friction Coefficient) Yokota, S;Nakano, K
  7. J. Fluid Mech v.118 An experimental investigation of oscillatory flow in pipe bends Arnold F. B;Leif K,T
  8. Bull. of the JSME v.53 no.487 Flows in a Curved Rectangular Channel(2rd Report) Sugiyama, S;Yamamoto, M;Hayashi, T
  9. 日本機械學會論文集(B編) v.54 no.505 曲ら管內派動流に關すゐ硏究(第4報, 二次流動) 각전승;두다활삼;화전수지
  10. J. Fluid Mech v.111 Experinental study of physiological pulsatile flow in a curved tube Chandran, K. B;Yearwood, T. L
  11. Ph. D. thesis, Korea Univ. Flow Characteristics of Developming Laminar Unsteady Flow in a Square Duct Park, G. M
  12. 한국기계연구소 부설 해사기술연구소 UCE 470-1397, D LDV를 이용한 프로펠러 유효반류 측정 및 난류 계측시스템 개발 안종우;현범수;이창용