Results 11 to 20 of about 640 (177)

Turbulent Fluid Acceleration Generates Clusters of Gyrotactic Microorganisms [PDF]

Physical Review Letters, 2014
The motility of microorganisms is often biased by gradients in physical and chemical properties of their environment, with myriad implications on their ecology. Here we show that fluid acceleration reorients gyrotactic plankton, triggering small-scale clustering.
Filippo De Lillo, Massimo Cencini, William M. Durham, Michael Barry, Roman Stocker, Eric Climent, Guido Boffetta   +6 more
openaire   +8 more sources

Environmental Transport of Gyrotactic Microorganisms in an Open‐Channel Flow

Water Resources Research, 2023
AbstractThe rich and complex phenomena of the transport of active particles like microorganisms in shear flows are of great significance to various biological and environmental applications. Recent studies have shown that the motility and gyrotaxis of algae could greatly influence their transport in waters.
Guangmiao Li, Zheng Gong, Weiquan Jiang, Jie Zhan, Bohan Wang, Xudong Fu, Mengzhen Xu, Zi Wu   +7 more
openaire   +1 more source

Exploring the nanomechanical concepts of development through recent updates in magnetically guided system

Scientific Reports, 2021
This article outlines an analytical analysis of unsteady mixed bioconvection buoyancy-driven nanofluid thermodynamics and gyrotactic microorganisms motion in the stagnation domain of the impulsively rotating sphere with convective boundary conditions. To
Noor Saeed Khan, Auwalu Hamisu Usman, Attapol Kaewkhao, Poom Kumam, Phatiphat Thounthong, Usa Wannasingha Humphries   +5 more
doaj   +1 more source

Thermodynamics of second-grade nanofluid over a stretchable rotating porous disk subject to Hall current and cubic autocatalysis chemical reactions

Frontiers in Physics, 2022
Homogeneous–heterogeneous chemical reactions for second-grade nanofluid and gyrotactic microorganisms in a rotating system with the effects of magnetic fields and thermal radiation are examined.
Noor Saeed Khan, Unai Fernandez-Gamiz, Muhammad Sohail Khan, Wiyada Kumam, Poom Kumam, Poom Kumam, Ahmed M. Galal, Ahmed M. Galal   +7 more
doaj   +1 more source

Entropy generation optimization in MHD pseudoplastic fluid comprising motile microorganisms with stratification effect

Alexandria Engineering Journal, 2020
This analysis aims to examine entropy generation in magnetohydrodynamic (MHD) flow of pseudoplastic Williamson nanofluid including gyrotactic motile microorganisms past over a stretching cylinder under the incidence of inclined magnetic field ...
Rahila Naz, Mughira Noor, Zahir Shah, Muhammad Sohail, Poom Kumam, Phatiphat Thounthong   +5 more
doaj   +1 more source

Brownian motion and thermophoretic diffusion impact on Darcy-Forchheimer flow of bioconvective micropolar nanofluid between double disks with Cattaneo-Christov heat flux

Alexandria Engineering Journal, 2023
The topic of fluid flow through disks is important due to a broad range of its applications in industries, engineering, and scientific fields. The objective of the current article is to analyze the bioconvective micropolar nanofluid flow between the ...
Arfan Shahzad, Muhammad Imran, Madeeha Tahir, Shan Ali Khan, Ali Akgül, Sherzod Abdullaev, Choonkil Park, Heba Y. Zahran, Ibrahim S. Yahia   +8 more
doaj   +1 more source

Hall current effect in bioconvection Oldroyd-B nanofluid flow through a porous medium with Cattaneo-Christov heat and mass flux theory

Scientific Reports, 2022
Bioconvection due to microorganisms is important area of research, considerably importance for environment and sustainable fuel cell technologies. Buongiorno nanofluid model for Cattaneo-Christov heat and mass flux theory taken into account the Oldroyd-B
Noor Saeed Khan, Somchai Sriyab, Attapol Kaewkhao, Ekkachai Thawinan   +3 more
doaj   +1 more source

Comparative Analysis of a Cone, Wedge, and Plate Packed with Microbes in Non-Fourier Heat Flux

Mathematics, 2022
In this study, we investigated a radiative chemically reactive Casson fluid above a cone, plate, and wedge with gyrotactic microorganisms subjected to the Cattaneo–Christov heat flux model.
Halavudara Basavarajappa Santhosh, Mamatha Sadananda Upadhya, N. Ameer Ahammad, Chakravarthula Siva Krishnam Raju, Nehad Ali Shah, Wajaree Weera   +5 more
doaj   +1 more source

Novel thermal aspects of hybrid nanofluid flow comprising of manganese zinc ferrite MnZnFe2O4, nickel zinc ferrite NiZnFe2O4 and motile microorganisms

Ain Shams Engineering Journal, 2022
An enhancement in heat transfer due to nanofluids is essentially required in various thermal systems. Hybrid nanofluids possess high thermal conductivity and, have ability to embellish and enhance the thermal strength of common fluids.
Sohail Ahmad, Shaheen Akhter, Muhammad Imran Shahid, Kashif Ali, Mubeen Akhtar, Muhammad Ashraf   +5 more
doaj   +1 more source

Heat transport and nonlinear mixed convective nanomaterial slip flow of Walter-B fluid containing gyrotactic microorganisms

Alexandria Engineering Journal, 2020
Here nonlinear mixed convective nanoliquid slip flow of Walter-B fluid is addressed subject to stretched surface with gyrotactic microorganisms. The flow is generated via nonlinear stretched surface.
M. Ijaz Khan, Faris Alzahrani, Aatef Hobiny   +2 more
doaj   +1 more source