Study the Ferro-Hydrodynamic Characteristic on FHD Bernoulli Model

Abstract:

A ferro-hydrodynamic ( FHD ) model, based on modified Bernoulli theory, to estimate the average ferro-flow velocity is developed in this study. In which, the effective viscosity, strongly dependent on the magnetic intensity and volumetric concentration of ferro-particle, is considered. Referred to the Langevin function, the induced magnetic pressure together with hydraulic head as well as frictional head successfully formulates the modified ferro-Bernoulli model .To correct the analytic results, a self-designed experimental mechanism, equipped with light gate and current-carry solenoid, is set up as well ,which is used to measure the average velocity of piping flow via the duration recorded for ferro-fluid passing through both light gates While compared with experimental results, a good agreement of analytic solutions will be delivered within the working magnetic intensity ,0~36 mT, and the flow velocity is found to be significantly reduced during initial magnetization 0~12 mT as the working condition, subjected to ferro-concentration 0.04~0.4 at temperature 25 oc~45 oc, is specified in this study.

• Periodical: Applied Mechanics and Materials (Volumes 182-183)
• Pages: 23-27
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.182-183.23
• Online since: June 2012
• Authors: Je Ee Ho
• Keywords: Apparent Gravity Effect

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