Respected Sir
I am R. Vijayalakshmi, doing Ph. D. in Fluid Dynamics, especially the study of physical properties of Dusty Fluid through porous medium. Question is ''The dusty particles are remain uninfluenced by the magnetic field. However, there is a Lorentz force experienced by the fluid". Examiner is asking how the fluid is ionized. Moreover, the nature of dust particles is inert.
Plz reply soon.
R. Vijayalakshmi
SRM University, Chennai, India.
Mobile: 8300121363 Whatsapp
It is true that applied Magnetic field creates electric current in the fluid(considered as electrically conducting) which modifies the motion while in hypothesis of P. G. Saffman(1962) the the particles suspended(for dusty fluids) are uniform in shape and size as well as electrically non conducting. The same can be studied in formation of clouds and thunder storms. The force applied on particles(due to magnetic field) is maintained by equal and opposite force by fluid to each other.
In some situations it is maintained and calculated as drag force. In this regard please read Sproull(1961), Saffman(1962),Dalal(1998) and Boussinesq's Approximation. I hope your doubt will be clear.
I would like to suggest
Animasaun, I. L., Koriko, O. K., Mahanthesh, B., & Dogonchi, A. S. (2019). A note on the significance of quartic autocatalysis chemical reaction on the motion of air conveying dust particles. Zeitschrift für Naturforschung A, 74(10), 879-904.
R. Vijayalakshmi What do you mean by "nature of dust particles is inert"?
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