Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Gholamreza Ahmadi Sheikh Shabani"'
Autor:
Omid Ali Akbari, Hossein Haghjoo, Azher M. Abed, Mahsa Karimi, Ali Maghzian, Gholamreza Ahmadi Sheikh Shabani, Amirmasoud Anvari, Nevzat Akkurt, Davood Toghraie
Publikováno v:
Heliyon, Vol 8, Iss 12, Pp e11901- (2022)
In this research, turbulent flow numerical models in a wavy channel were investigated. The studied channel is simulated in two dimensions and symmetrically in the range of Reynolds numbers from Re=10,000 to 80,000. The significant cause of this resea
Externí odkaz:
https://doaj.org/article/0acacaf7cd7543719b680411181b5e6b
Autor:
Marjan Goodarzi, Majid Zarringhalam, Mohammad Hussein Bahmani, Gholamreza Ahmadi Sheikh Shabani, Omid Ali Akbari
Publikováno v:
International Journal of Numerical Methods for Heat & Fluid Flow. 30:3247-3265
Purpose This paper aims to study forced convection in a double tube heat exchanger using nanofluids with constant and variable thermophysical properties. Design/methodology/approach The cold fluid was distilled water flowing in the annulus and the ho
Autor:
Ali Rahimi Gheynani, Omid Ali Akbari, Davood Toghraie, Gholamreza Ahmadi Sheikh Shabani, Majid Zarringhalam, Abdulwahab A. Alnaqi, Marjan Goodarzi
Publikováno v:
International Journal of Numerical Methods for Heat & Fluid Flow. 29:1699-1723
PurposeAlthough many studies have been conducted on the nanofluid flow in microtubes, this paper, for the first time, aims to investigate the effects of nanoparticle diameter and concentration on the velocity and temperature fields of turbulent non-N
Autor:
Gholamreza Ahmadi Sheikh Shabani, Davood Toghraie, Majid Zarringhalam, Omid Ali Akbari, Abolfazl Toghaniyan
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 509:673-689
In present study, by using thermal model of passive scalar and Shan–Chen model two-phase lattice Boltzmann, the two-phase thermal flows were investigated. The dynamics of such flows involves several complexities due to the complex interaction of se
Autor:
Majid Zarringhalam, Ali Heydari, Gholamreza Ahmadi Sheikh Shabani, Ali Seifi, Abdullah A.A.A. Al-Rashed, Omid Ali Akbari, Davood Toghraie, Marjan Goodarzi
Publikováno v:
Physica B: Condensed Matter. 537:176-183
In recent years, the study of rheological behavior and heat transfer of nanofluids in the industrial equipment has become widespread among the researchers and their results have led to great advancements in this field. In present study, the laminar f
Autor:
Gholamreza Ahmadi Sheikh Shabani, Majid Zarringhalam, Abdullah A.A.A. Al-Rashed, Ghanbar Ali Sheikhzadeh, Mohammad Hussein Bahmani, Omid Ali Akbari, Marjan Goodarzi
Publikováno v:
Advanced Powder Technology. 29:273-282
In present study, heat transfer and turbulent flow of water/alumina nanofluid in a parallel as well as counter flow double pipe heat exchanger have been investigated. The governing equations have been solved using an in-house FORTRAN code, based on f
Autor:
Ali Seifi, Abdullah A.A.A. Al-Rashed, Fazel Afshary, Marjan Goodarzi, Gholamreza Ahmadi Sheikh Shabani, Omid Ali Akbari, Farzad Pourfattah, Reza Seifi
Publikováno v:
Applied Thermal Engineering. 129:1124-1134
The dry cooling towers (HELLER) are one of the most current cooling towers used in steam power plants. These cooling towers are mostly used in dry areas. The environmental effects are one of the important problems on the performance of these kinds of
Autor:
Omid Ali Akbari, Majid Zarringhalam, Gholamreza Ahmadi Sheikh Shabani, Ali Marzban, Davood Toghraie, Mohammad Reza Gholami
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 134:1611-1628
In this research, the laminar and forced flow and heat transfer of oil/multi-walled carbon nanotubes nanofluid in a microchannel have been numerically investigated. The studied geometrics is a two-dimensional rectangular microchannel with the proport
Autor:
Gholamreza Ahmadi Sheikh Shabani, Truong Khang Nguyen, Ali Heydari, Omid Ali Akbari, Masoud Derakhshani, Majid Zarringhalam, Mohammad Reza Safaei, Abdullah A.A.A. Al-Rashed, Ramin Mashayekhi
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 131:2893-2912
In the present study, the effect of attack angle of triangular ribs, by using finite volume method, has been numerically studied in a two-dimensional microchannel. The cooling fluid is water/Ag nanofluid with volume fractions of 0–4% of nanoparticl
Autor:
Gholamreza Ahmadi Sheikh Shabani, Ali Marzban, Mohammad Reza Safaei, Majid Zarringhalam, Ali Behnampour, Ramin Mashayekhi, M B Ghavami, Omid Ali Akbari
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 91:15-31
In the present study, the effect of triangular, rectangular and trapezoidal ribs on the laminar heat transfer of water-Ag nanofluid in a ribbed triangular channel under a constant heat flux was numerically studied using finite volume method. Height a