The frequency dispersion of dynamic transfer coefficients and elastic moduli of magnetic liquids |
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Authors: | S Odinaev K Komilov A Zaripov |
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Institution: | (1) Tajik State National University, Dushanbe, Tajikistan |
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Abstract: | The analytic equations for viscosity coefficients and the corresponding elastic moduli obtained in 3] were used to calculate these values over a wide range of reduced frequency values (ω* ≈ 10?7?10). The volume η v (ω) and shear η s (ω) viscosity coefficients decreased as the frequency increased. The dispersions η v (ω) and K r (ω) were only caused by the contribution of structural relaxation, and the dispersions η s (ω) and μ(ω), by translational and structural relaxation. The shear elastic modulus μ(ω) and relaxation volume elastic modulus K r (ω) increased as the frequency grew. The results obtained were in satisfactory agreement with the conclusions from general relaxation theory. |
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