Zobrazeno 1 - 10
of 219
pro vyhledávání: '"Yongjun Jian"'
Publikováno v:
Micromachines, Vol 15, Iss 11, p 1315 (2024)
This study investigates the electroosmotic flow (EOF) of a two-layer Newtonian fluid system in a parallel plate microchannel with sinusoidal corrugated walls. The upper fluid is conducting, while the lower fluid is nonconducting. This analysis is per
Externí odkaz:
https://doaj.org/article/60718a4d9f4f45e891890e75411a1d81
Publikováno v:
Micromachines, Vol 15, Iss 1, p 4 (2023)
The EOF of a viscoelastic Maxwell fluid driven by an alternating pressure gradient and electric field in a parallel plate microchannel with sinusoidal roughness has been investigated within the Debye–Hückel approximation based on boundary perturba
Externí odkaz:
https://doaj.org/article/739fe5abfc93488ca8f9678ab2dd68e7
Publikováno v:
Micromachines, Vol 14, Iss 11, p 2054 (2023)
The features of stationary random processes and the small parameter expansion approach are used in this work to examine the impact of random roughness on the electromagnetic flow in cylindrical micropipes. Utilizing the perturbation method, the analy
Externí odkaz:
https://doaj.org/article/c6343f3e6c374f319fe6c06c841ca041
Publikováno v:
Micromachines, Vol 14, Iss 8, p 1617 (2023)
This study investigates the effect of small random transverse wall roughness on electromagnetohydrodynamic (EMHD) flow is in a microchannel, employing the perturbation method based upon stationary random function theory. An exact solution of a random
Externí odkaz:
https://doaj.org/article/f76000c706d9411cb479a909c53218eb
Publikováno v:
Micromachines, Vol 14, Iss 5, p 949 (2023)
In this article, electro-osmotic thrusters (EOTs), which are full of non-Newtonian power-law fluids with a flow behavior index n of the effective viscosity, are theoretically investigated in a microchannel. Different values of the flow behavior index
Externí odkaz:
https://doaj.org/article/8caf17ce910d4d5a906a0f04f6f8a458
Publikováno v:
Micromachines, Vol 13, Iss 12, p 2166 (2022)
This study analytically investigates the coupled effects of surface charge and boundary slip on the fully developed electroosmotic flow and thermal transfer in parallel plate micro and nanochannels under the high zeta potential. The electric potentia
Externí odkaz:
https://doaj.org/article/2accf3adcc5d498a85223dca4e7af007
Publikováno v:
Nanomaterials, Vol 12, Iss 19, p 3355 (2022)
In this paper, the electrokinetic energy conversion (EKEC) efficiency, streaming potential of viscoelastic fluids in microtubes under an external transversal magnetic field, and an axial pressure gradient are investigated. The Jeffreys fluid is appli
Externí odkaz:
https://doaj.org/article/a25a47a442554e768a2cc45ebe3b9127
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 10, Iss 1, Pp 1628-1635 (2019)
Time-periodic pressure-driven slip flow and electrokinetic energy conversion efficiency in a nanotube are studied analytically. The slip length depends on the surface charge density. Electric potential, velocity and streaming electric field are obtai
Externí odkaz:
https://doaj.org/article/dcd5d0447d154ac88b2752f303cbab59
Publikováno v:
Mathematics, Vol 9, Iss 24, p 3222 (2021)
Here, space electroosmotic thrusters in a rigid nanochannel with high wall zeta potentials are investigated numerically, for the first time, considering the effect of finite size of the ionic species. The effect, which is called a steric effect, is o
Externí odkaz:
https://doaj.org/article/217ee0222bf343cc94a8917a01e24fa9
Publikováno v:
Micromachines, Vol 13, Iss 1, p 66 (2021)
In this paper, the effects of asymmetrically modulated charged surfaces on streaming potential, velocity field and flow rate are investigated under the axial pressure gradient and vertical magnetic field. In a parallel-plate microchannel, modulated c
Externí odkaz:
https://doaj.org/article/62f2f2e4e9b74c9093f09676913c0987