Convection in Ferro-Nanofluids: Experiments and Theory: Physical Mechanisms, Flow Patterns, and Heat Transfer (Advances in Mechanics and Mathematics (40))

This book covers the experimental and theoretical study of convection in non-isothermal ferro-nanofluids (FNFs). Since FNFs are not transparent and magnetic fields are very sensitive to the shape of the boundary between magnetic and nonmagnetic media, special flow visualization techniques based on the use of thermo-sensitive liquid crystal films, infrared cameras, as well as local and integral temperature sensors are discussed in the book. This book considers several major configurations of convective chambers and the applied magnetic field. For each of them, the stability boundaries are determined theoretically and experimentally. The physical types of dominant instabilities and the characteristics of their interactions are subsequently established using linear and weakly non-linear hydrodynamic stability analyses and elements of bifurcation theory. The book also discusses the potential of using magnetically controlled ferro-nanofluids as a heat carrier in situations where heat removal by natural convection is not possible due to the lack of gravity (orbital stations) or extreme confinement (microelectronics). Researchers and practitioners working in the areas of fluid mechanics, hydrodynamic stability, and heat and mass transfer will benefit from this book. Front Matter ....Pages i-xv Ferrofluids: Composition and Physical Processes (Aleksandra A. Bozhko, Sergey A. Suslov)....Pages 1-9 Governing Equations (Aleksandra A. Bozhko, Sergey A. Suslov)....Pages 11-19 Theory of Thermogravitational and Thermomagnetic Convection in an Infinite Vertical Layer of Homogeneous Ferrofluid (Aleksandra A. Bozhko, Sergey A. Suslov)....Pages 21-103 Experimental Methodology (Aleksandra A. Bozhko, Sergey A. Suslov)....Pages 105-126 Experimental Investigation of Thermogravitational Convection in Ferrofluids (Aleksandra A. Bozhko, Sergey A. Suslov)....Pages 127-164 Experimental Investigation of Thermomagnetic Convection in Ferrofluids (Aleksandra A. Bozhko, Sergey A. Suslov)....Pages 165-244 Concluding Remarks (Aleksandra A. Bozhko, Sergey A. Suslov)....Pages 245-246 Back Matter ....Pages 247-272