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Effect of Viscous and Thermal Forcings on Dynamical Features of Swimming of Microorganisms in Nanofluids

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences
Volume 17 No. 1, January 2016, Pages 18-27

S. Sharafatmandjoor1,2,*, C. S. Nor Azwadi3
1Department of Mechanical and Aerospace Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
2George Brown College, Canada
3Faculty of Mechanical Engineering, University of Technology Malaysia, 81310 Skudai, Johor, Malaysia
*Corresponding author: sharafatmand@srbiau.ac.ir

KEYWORDS

System-Identification, Microorganism, Nanofluid, Trace-Determinant Chart, Dynamical System

ABSTRACT

As a practical dynamical system approach to analyse microorganisms, we have used the system identification approach to develop a framework that is capable of introducing external forcing on a time series data. For this goal, a two-equation deferential equation system for time evolution of the experimental parallel velocity values of head of a bull spermatozoon during circular swimming is reconstructed. The planar movement of the sperm is shown to be modelled well with this deferential system for three different cases. We also present a least-squares analysis on a system with more sampled data with fewer points used in the time marching of the deferential system and show how the system can represent the real pattern approximately. Following this idea we bring a linearized model of the system and investigate it near its equilibrium points on a Trace-Determinant chart. Finally, we show how this straightforward system can be employed where external viscous and/or thermal forcings due to swimming in a nanofluid is a dominant phenomenon. We bring a phase portrait demonstration of the time evolution of the system to highlight the main modifications in the dynamics.

CITE THIS ARTICLE

MLA
Sharafatmandjoor, S., et al. “Effect of Viscous and Thermal Forcings on Dynamical Features of Swimming of Microorganisms in Nanofluids.” Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 17.1 (2016): 18-27.

APA
Sharafatmandjoor, S., & Nor Azwadi, C. S. (2016). Effect of Viscous and Thermal Forcings on Dynamical Features of Swimming of Microorganisms in Nanofluids. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 17(1), 18-27.

Chicago
Sharafatmandjoor, S., and C. S. Nor Azwadi. “Effect of Viscous and Thermal Forcings on Dynamical Features of Swimming of Microorganisms in Nanofluids.” Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 17, no. 1 (2016): 18-27.

Harvard
Sharafatmandjoor, S. and Nor Azwadi, C.S., 2016. Effect of Viscous and Thermal Forcings on Dynamical Features of Swimming of Microorganisms in Nanofluids. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 17(1), pp.18-27.

Vancouver
Sharafatmandjoor, S, Nor Azwadi, CS. Effect of Viscous and Thermal Forcings on Dynamical Features of Swimming of Microorganisms in Nanofluids. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences. 2016;17(1):18-27.

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