Abstract
An experimental investigation was performed to study the characteristics of ER(Electro-Rheological) fluid flow in a horizontal rectangular tube with or without D. C voltage. To determine some characteristics of the ER flow, 2D PIV (Particle Image Velocimetry) technique was employed for velocity measurements. This research found the mean velocity distributions with OkV/mm, 1.0kV/mm and 1.5kV/mm for Re=0, 0.62, 1.29 and 2.26. When the strength of the electric field increased, the cluster of ERF was clearly strong along the test tube and the flow rate decreased. The present results will contribute to the economical and compact design of ER fluids system.
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Abbreviations
- A :
-
Cross- sectional area of the test tube
- b :
-
Electrode width
- E :
-
Electric field
- H :
-
The width of the test tube
- L :
-
The length of the test tube
- m :
-
Mass flow late
- Δ P :
-
Pressure drop
- u :
-
Axial velocity
- U m :
-
Mean axial velocity
- τ :
-
Shear stress of ER fluid
- μ :
-
Viscosity of ER fluid without electric field
- τ y :
-
Yield shear stress of ER fluid
- h :
-
Electrode gap
- α,β :
-
Experimental coefficients
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Chang, TH., Jang, SC. An experimental study on flow characteristics of erf between two parallel-plate electrodes by using piv technique. KSME International Journal 18, 1763–1771 (2004). https://doi.org/10.1007/BF02984325
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DOI: https://doi.org/10.1007/BF02984325