New functional materials based on magnetic liquids
Hydrodynamic interaction effects in magnetic colloids
Leaderand Major Members
Artur Zakinyan – PhD (Physics & Mathematics); Associate Professor, Department of Generaland Theoretical Physics, Institute of Mathematics and Natural Sciences
The project enjoyed supported based on the results of contest for grants (2019) from the Russian Research Foundation for initiative research by young scientists under the President’s program of research projects launched by leading researchers, including young scientists (Project Number: 19-72-00070)
Department of General and Theoretical Physics, Institute of Mathematics and Natural Sciences
Departments and Partners involved
A computer model has been developed simulating the process of structure formation in an emulsion based on the Brownian dynamics algorithm in view of hydrodynamic interactions. Also, a model has been designed for calculating the macroscopic magnetic permeability of emulsions based on a finite-difference solution of the scalar magnetic potential distribution problem.
The effect focusing on the appearance of a torque in a limited volume of a magnetic colloid emulsion placed in a spherical container in a rotating field has been studied.
The hydrodynamic interaction of emulsion droplets with the boundaries of the spherical shell that causes the rotation effect, has been analyzed, and numerical models have been designed to describe the said processes. Namely, mobility matrices for such systems have been obtained, taking into account the hydrodynamic interactions of particles among themselves and with bounding surface of spherical geometry.
Theoutcomeshavebeenpublishedinajournal belonging to the Web of Science citation database; 1 official software registration certificate has been obtained.
- Electrical conductivity of field-structured emulsions Fluids. A.R. Zakinyan, L.M. Kulgina, A.A. Zakinyan, S.D. Turkin, 2020 г.
The project and its planned outcomesbelong to the intersection of dynamically developing modern research areas that cover the physics of magnetic colloidal systems and composite materials, as well as the hydrodynamics of multiphase media, which are currently within the focus the global research scientific community.
The project will offer a view at newer detailsregarding the physical properties and behavior patterns of composite materials as determined by dynamic structure formation.
The outcomes will serve a significant contribution to the progress of ideas concerning the properties and behavior patterns of colloidal composite materials and open up potential for successful development and creation of new intelligent controlled materials.New data will be obtained concerning the processes of structure formation in emulsions and the features of hydrodynamic interactions in them. New results will be obtained regarding the interactions of finite volumes of colloidal media, as well as individual colloidal particles and droplets with bounding surfaces.
The expected outcomes may be implemented in the development of microfluid and other technologies.