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Detection and optical imaging of induced convection under the action of static magnetic field gradient in a non-conducting diamagnetic fluid

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Abstract

The report elaborates, for the first time, visual observations of induced convection in a non-conducting diamagnetic fluid (water) under the action of static magnetic field gradient in the absence of thermal gradients. The convections were induced at room temperature in a suspension of deionised (DI) water and lycopodium pollen grains. The suspension was exposed to a static magnetic field gradient having a magnetic induction strength of 0.12 T. Upon application of various configurations of magnetic field gradient over the suspension, different convective flow patterns were observed in the suspension. The results show that diamagnetic interactions of water are detectable even though its value of magnetic susceptibility is small.

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Acknowledgements

The author wishes to thank Dr Golum Shaifullah, Astron, Netherlands and Dr Bhalchandra Pujari, Centre for Modeling and Simulations, Savitribai Phule Pune University, for providing their valuable time and advice for the discussions on the topic from time to time. The author wishes to thank the referees for suggesting improvements to the manuscript.

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  1. Department of Physics, Abasaheb Garware College, Pune, 411 004, India

    Amit R Morarka

  2. Department of Electronic Science, Savitribai Phule Pune University, Pune, 411 007, India

    Amit R Morarka

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  1. Amit R Morarka
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Correspondence to Amit R Morarka.

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R Morarka, A. Detection and optical imaging of induced convection under the action of static magnetic field gradient in a non-conducting diamagnetic fluid. Pramana - J Phys 96, 18 (2022). https://doi.org/10.1007/s12043-021-02264-0

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  • DOI: https://doi.org/10.1007/s12043-021-02264-0

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