About this Research Topic
Micropolar fluids are fluids with internal microstructure. These fluids are stable suspensions consisting of rigid, spherical particles in a liquid carrier. The main difference of micropolar fluids in comparison with Newtonian fluids is microrotation (particles’ average rotational velocity), which is differentiated from the vorticity of the liquid carrier. Ferrofluids are an important class of micropolar fluids, since they are made of ferromagnetic particles in a nonmagnetic liquid carrier. The ferromagnetic particles exhibit strong forces because of the magnetic polarization, called magnetization, when an external magnetic field is applied. Magnetization is associated with a variety of phenomena in ferrofluids, such as magnetic torque (micromagnetorotation). Ferrofluids can have a variety of applications, because of their rheological properties that can be easily controlled by an externally applied magnetic field. Blood can be also treated as a ferrofluid when it is under the influence of an applied magnetic field, because of the hemoglobin molecule, which is an iron oxide and behaves like ferromagnetic particle.
This Research Topic focuses on the latest research regarding micropolar fluids and ferrofluids, including all research areas related to such flows. The goal of this collection is to provide a deeper understanding of the mechanics and the dynamics of these fluids, while considering other important issues, such as mass and heat transfer mechanisms, instabilities and turbulence. All studies examining flows that are considered micropolar will be included (colloidal suspensions, lubricants and liquid crystals). Numerical and experimental studies regarding all research areas associated with micropolar fluids and ferrofluids are welcome. Special consideration is given to numerical or experimental studies regarding blood flows under the influence of an applied magnetic field that can be modelled as ferrofluids.
The scope of this Research Topic encompasses the latest advances in micropolar fluids and ferrofluids focusing on a variety of topics. Theoretical, numerical and experimental research works focused on the following areas are welcome:
• Mechanics and dynamics of micropolar fluids and ferrofluids. This includes (but is by no means limited to) the study of mechanisms that either differentiate or equalize microrotation and vorticity, different magnetic relaxation equations and the results of application of different types of magnetic fluids (such as rotating magnetic fields);
• Physical properties of micropolar fluids and ferrofluids;
• Heat and transfer mechanisms of micropolar and ferrofluid flows;
• Instabilities, energy cascade and turbulent motion;
• Experimental studies on all the above mentioned topics. All types of micropolar fluids (blood, colloidal suspensions, lubricants and liquid crystals) and ferrofluids can be included. Special focus can be given on the applications of these fluids in biomedicine, such as imaging, drug delivery and hyperthermia. All flow geometries can be considered.
This Research Topic focuses on the latest research regarding micropolar fluids and ferrofluids, including all research areas related to such flows. The goal of this collection is to provide a deeper understanding of the mechanics and the dynamics of these fluids, while considering other important issues, such as mass and heat transfer mechanisms, instabilities and turbulence. All studies examining flows that are considered micropolar will be included (colloidal suspensions, lubricants and liquid crystals). Numerical and experimental studies regarding all research areas associated with micropolar fluids and ferrofluids are welcome. Special consideration is given to numerical or experimental studies regarding blood flows under the influence of an applied magnetic field that can be modelled as ferrofluids.
The scope of this Research Topic encompasses the latest advances in micropolar fluids and ferrofluids focusing on a variety of topics. Theoretical, numerical and experimental research works focused on the following areas are welcome:
• Mechanics and dynamics of micropolar fluids and ferrofluids. This includes (but is by no means limited to) the study of mechanisms that either differentiate or equalize microrotation and vorticity, different magnetic relaxation equations and the results of application of different types of magnetic fluids (such as rotating magnetic fields);
• Physical properties of micropolar fluids and ferrofluids;
• Heat and transfer mechanisms of micropolar and ferrofluid flows;
• Instabilities, energy cascade and turbulent motion;
• Experimental studies on all the above mentioned topics. All types of micropolar fluids (blood, colloidal suspensions, lubricants and liquid crystals) and ferrofluids can be included. Special focus can be given on the applications of these fluids in biomedicine, such as imaging, drug delivery and hyperthermia. All flow geometries can be considered.
Keywords: Micropolar fluid theory, Micropolar fluids, Ferrohydrodynamics, Ferrofluids, Magnetic fluids
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.
