Abstract
The effect of shear flow (flow in a circular tube) on the process of relaxation of the magnetization of a magnetic fluid is investigated theoretically and experimentally. The experiments reveal a jump in the high-frequency susceptibility when the flow stops. This jump depends on the measurement frequency on the interval from 2 to 40 kHz, on the flow rate and on the structure of the magnetic fluid. A theory describing the dependence of the jump in high-frequency susceptibility on the frequency and the structure and flow rate of the fluid is proposed. The theory is found to be consistent with the experimental data.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
Yu. N. Dikanskii, “Change in the magnetic susceptibility of a concentrated magnetic fluid in a shear flow,” in: Materials of the Third All-Union School-Seminar on Magnetic Fluids [in Russian], Ples (1983), p. 84.
V. V. Gogosov, V. A. Naletova, and G. A. Shaposhnikova, “Hydrodynamics of magnetizable fluids,” in: Advances in Science and Technology. Fluid Mechanics Series, Vol. 16 [in Russian], Moscow (1981), p. 76.
H. Lamb, Hydrodynamics, Cambridge (1932).
Author information
Authors and Affiliations
Additional information
Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 6, pp. 94–98, November–December, 1988.
Rights and permissions
About this article
Cite this article
Naletova, V.A., Shkel', Y.M. Effect of flow on the magnetization relaxation process in a magnetic fluid. Fluid Dyn 23, 879–883 (1988). https://doi.org/10.1007/BF01051823
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01051823