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The Fractal Calculus for Fractal Materials

by Fakhri Khajvand Jafari 1, Mohammad Sadegh Asgari 2 and Amir Pishkoo 1,3,* 1
Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran, Iran
2
Department of Mathematics, Central Tehran Branch, Islamic Azad University, Tehran, Iran
3
Physics and Accelerators Research School, Nuclear Science and Technology Research Institute, P.O. Box 14395-836, Tehran, Iran
*
Author to whom correspondence should be addressed.
Fractal Fract 2019, 3(1), 8; https://doi.org/10.3390/fractalfract3010008
Received: 10 February 2019 / Revised: 2 March 2019 / Accepted: 5 March 2019 / Published: 6 March 2019
The major problem in the process of mixing fluids (for instance liquid-liquid mixers) is turbulence, which is the outcome of the function of the equipment (engine). Fractal mixing is an alternative method that has symmetry and is predictable. Therefore, fractal structures and fractal reactors find importance. Using $F α$ -fractal calculus, in this paper, we derive exact $F α$ -differential forms of an ideal gas. Depending on the dimensionality of space, we should first obtain the integral staircase function and mass function of our geometry. When gases expand inside the fractal structure because of changes from the i + 1 iteration to the i iteration, in fact, we are faced with fluid mixing inside our fractal structure, which can be described by physical quantities P, V, and T. Finally, for the ideal gas equation, we calculate volume expansivity and isothermal compressibility. View Full-Text
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MDPI and ACS Style

Jafari, F.K.; Asgari, M.S.; Pishkoo, A. The Fractal Calculus for Fractal Materials. Fractal Fract 2019, 3, 8.

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