What is it about?
When we stir coffee with a spoon, we cause mixing of coffee, milk and sugar through swirling motions. These swirling motions have different sizes. In this study, we add new insights as to why mixing does not happen uniformly along all directions at the smallest size of the swirling motions.
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Why is it important?
Our findings can help us to understand why mixing is not uniform at small scales. This will also help to come up with new models that can be beneficial for various industries where mixing plays a major role.
Perspectives
When I started this work, I did not expect to see preferential alignment of the cliffs that lead to this observed phenomena. Overall, working on this project was an intellectually stimulating experience.
Immanuvel Paul
Khalifa University of Science Technology and Research
Read the Original
This page is a summary of: On the isotropy of temperature fluctuations in passive scalar turbulence, Physics of Fluids, October 2024, American Institute of Physics,
DOI: 10.1063/5.0230027.
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