Effect of Amplitude of Electric Field on the Rotation of Liquid Film

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Mashhadi, Meysam | 2012

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 48458 (04)
University: Sharif University of Technology
Department: Physics
Advisor(s): Amjadi, Ahmad
Abstract:
By direct and alternating electric field applied to thin film of liquid suspended in the air we can spin out and control it. Rotation pattern depends on the geometry of the electrodes and the applied magnetic field. This is called a rotating liquid film (Liquid Film Motor). To determine the cause of rotation, different models have been proposed. In this project we have tried to check the accuracy of any of the models. Using particle velocimetry using the photo, we calculate the velocity pattern. Then, using the Navier-Stokes equation calculate the acceleration and viscosity from the velocity. Then, for a special arrangement using a finite diffrent method, electric potential and the electric field are calculated. We simulate different models. Using the least squares method to calculate the coefficient of each forces. To do this we use the linear estimation method. Then we will look into the effect of the applied magnetic field at different frequencies on the rotation pattern and speed of rotation
Keywords:
Electrical Field ; Navier-Stokes Equation ; Least Squares Method ; Liquid Film Rotation ; Two Dimentional Fluid ; Linear Estimation

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