A Flow Visualization of ER Fluids in 3Port Rectangular Tube

3 포트 사각 튜브내에서 ER유체의 유동 가시화

  • 장성철 (경남대학교 기계자동화공학부) ;
  • 염만오 (경남대학교 기계자동화공학부) ;
  • 장문제 (경남대학교 대학원 기계공학과)
  • Published : 2006.04.01

Abstract

The purpose of this study is to visualize the characteristics of ER fluids as preceding step of developing 3 port ER valves. ER fluids are made with silicone oil and 3 weight fraction starch having hydrous particles. The flow visualization of ER fluids flow is obtained by CCD camera with changing the strength of electric field to ER fluids flow. As the strength of the electric field increases, more clusters in flow are made and these clusters are though to be the reasons of the load flow rate being increased and the outlet flow rate being decreased. The ER Valves and load and outlet flow rate check method are considered to be applied to the fluid power control system.

Keywords

References

  1. Wang, K. C., Mclay, R. and Carey, G. F., 1989, 'ER Fluid Modelling,' CFD Laboratory, College of Engineering, University of Texas at Austin, Austin, Tx, USA. Proc. of the Second International Conference on ERF, pp. 41-52
  2. Tsukiji, T., Takahashi, J., Sugimoto, N. and Ikeda, H., 1996, 'Flow Characteristics of ERF between Two Parallel-Plate Electrodes,' JFPS, Vol. 25, No. 4, pp. 104-561
  3. Jang, S. C., Yum, M. O. and Kim, D. T., 2003, 'Flow Rate-Pressure Drop Characteristics of Dispersive ER Fluid According to Change of Electric Field Strength in Clearance between Parallel Plates,' KSMTE, Vol. 12, No. 1, pp. 78-83
  4. Chang, T. H. and Jang, S. C., 2004, 'An Experimental Study on Flow Characteristics of ERF Between Two Parallel-Plate Electrodes by Using PIV Technique,' KSME International Journal, Vol. 18, No. 10, pp. 1763-1771
  5. Choi, S. B. and Cheong, C. C., 1994, 'Performance Investigation of a Cylinderical Valve Featuring Electro-Rheological Fluids,' Journal of the Korean Society of Precision Engineering, Vol. 11, pp. 148-157
  6. Jung, D. W., Choi, Y. D. and Kim, S. G., 1994, 'The Electrical and Rheological Properties of Zeolite Based ER Fluids,' Korea Journal of Materials Research, Vol. 4, No. 2, pp. 213-218
  7. Yokota, S. and Kondoh, Y., 1996, 'A Control valve by Making use of an ER Fluid,' JSME, Vol. 62, No. 601, pp. 93-100 https://doi.org/10.1299/kikaib.62.93
  8. Simmonds, A. J., 1991, 'Electro-Rheological Valves in a Hydraulic Circuit,' IEE Proceeding-D, Vol. 138, No. 4, pp. 400-404
  9. Brooks, D. A., 1992, 'Design and Development of Flow Based Electro-Rheological Devices,' Journal of Modern Physics, Vol. 6, pp. 2705-2730 https://doi.org/10.1142/S0217979292001389