Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Nnamdi Fidelis Okechi"'
Publikováno v:
AIP Advances, Vol 10, Iss 3, Pp 035114-035114-12 (2020)
The flow of an electrically conducting fluid through a curved channel with wavy boundaries is studied. The waviness of the curved boundaries is sinusoidal and periodic. The analytical results for the velocity field and the volumetric flow rate are ob
Externí odkaz:
https://doaj.org/article/78c92549038d4af1a13a35e96f45da51
Publikováno v:
Results in Physics, Vol 7, Iss , Pp 3307-3314 (2017)
In this paper we investigate the peristaltic flow of viscous fluid through three-dimensional curved tube in the presence of the applied magnetic field. We present a mathematical model and an asymptotic solution for the three dimensional Navier-Stokes
Externí odkaz:
https://doaj.org/article/879a9e046dc4497cb7b21061f2f5522b
Autor:
Nnamdi Fidelis Okechi, Saleem Asghar
Publikováno v:
Chinese Journal of Physics. 74:144-156
Time-dependent flow of a viscoelastic material through a wavy curved channel is studied. The flow traversing the wavy curved domain is modelled in the curvilinear coordinates. The viscoelastic fluid is described by the fluid relaxation and retardatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25c6bd18b0395b1136f4485a8ecb96f7
https://doi.org/10.1016/j.cjph.2021.07.037
https://doi.org/10.1016/j.cjph.2021.07.037
Autor:
Nnamdi Fidelis Okechi
Publikováno v:
Transport in Porous Media. 139:513-526
In this paper, a Stokes-Brinkman model is developed to study a transverse flow through a rough curved channel containing a porous medium. The analytical expression of the flow rate, for a given mean pressure drop, is obtained as a function of the par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfb719dc46968f8b1b88502e50532c19
https://doi.org/10.1007/s11242-021-01677-0
https://doi.org/10.1007/s11242-021-01677-0
Autor:
Saleem Asghar, Nnamdi Fidelis Okechi
Publikováno v:
European Journal of Mechanics - B/Fluids. 88:191-198
In this paper, we have considered a two-phase flow in a groovy curved channel. The fluid contains a uniformly distributed small particles and the flow is generated by a transient pressure gradient along the grooves. The governing equations describing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8857121ab5bda4598de34c055204d8dd
https://doi.org/10.1016/j.euromechflu.2021.03.004
https://doi.org/10.1016/j.euromechflu.2021.03.004
Autor:
Nnamdi Fidelis Okechi, Saleem Asghar
Publikováno v:
Chinese Journal of Physics. 71:38-53
Magnetohydrodynamic (MHD) flow through a corrugated curved channel is modelled. The flow is perpendicular to the corrugations and applied magnetic field. A boundary perturbation analysis for small corrugation amplitude is used to find the expressions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bd3894189a2e09715be61c748673b59
https://doi.org/10.1016/j.cjph.2020.11.005
https://doi.org/10.1016/j.cjph.2020.11.005
Autor:
Saleem Asghar, Nnamdi Fidelis Okechi
Publikováno v:
Canadian Journal of Physics. 98:1108-1118
A pressure-driven viscous flow through groovy curved channels of small width compared to the groove wavelength is studied. The Reynolds number is assumed to be very small, such that the flow is dominated by the viscous and the pressure-gradient force
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fe8fb5c293d217bd933b536a140ae26
https://doi.org/10.1139/cjp-2019-0293
https://doi.org/10.1139/cjp-2019-0293
Autor:
Saleem Asghar, Nnamdi Fidelis Okechi
Publikováno v:
European Journal of Mechanics - B/Fluids. 84:15-22
A two-dimensional viscous flow in a rough curved channel is investigated. The roughness are considered to be sinusoidal corrugations. The asymptotic solution is obtained using boundary perturbation technique for small amplitude of the corrugations. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cc6e83e8fb94809b3043f65efd5329e
https://doi.org/10.1016/j.euromechflu.2020.04.016
https://doi.org/10.1016/j.euromechflu.2020.04.016
Autor:
Nnamdi Fidelis Okechi, Saleem Asghar
Publikováno v:
European Journal of Mechanics - B/Fluids. 84:81-92
Unsteady flow through a curved channel with roughness in the form of sinusoidal corrugations is examined. The flow is generated by a time periodic pressure gradient. The fluid velocity is both time and space periodic, as a result of the oscillatory p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3bf4c7171539f58623521f2837c1ba9
https://doi.org/10.1016/j.euromechflu.2020.05.005
https://doi.org/10.1016/j.euromechflu.2020.05.005
Autor:
Nnamdi Fidelis Okechi, Saleem Asghar
Publikováno v:
Transport in Porous Media. 135:271-286
A theoretical analysis of a viscous flow in a corrugated curved channel enclosing a porous medium is carried out. The alignment of the corrugations of the outer and the inner curved walls is taken arbitrarily, and the corrugations are considered to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d22d2450ee0c7e1c36ca0eb656cfc58
https://doi.org/10.1007/s11242-020-01473-2
https://doi.org/10.1007/s11242-020-01473-2