Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Ramin Mashayekhi"'
Autor:
Yongfeng Ju, Tiezhu Zhu, Ramin Mashayekhi, Hayder I. Mohammed, Afrasyab Khan, Pouyan Talebizadehsardari, Wahiba Yaïci
Publikováno v:
Nanomaterials, Vol 11, Iss 6, p 1570 (2021)
The hydrothermal performance of multiple semi-twisted tape inserts inside a heat exchanger pipe is numerically examined in three-dimensions. This study aims to find the optimum case for having the highest heat transfer enhancement with the lowest fri
Externí odkaz:
https://doaj.org/article/040c14bad516470184fce92c143e6718
Autor:
Mehdi Ghalambaz, Ramin Mashayekhi, Hossein Arasteh, Hafiz Muhammad Ali, Pouyan Talebizadehsardari, Wahiba Yaïci
Publikováno v:
Symmetry, Vol 12, Iss 10, p 1652 (2020)
This paper investigates the convective heat transfer in a heat exchanger equipped with twisted tape elements to examine effects of the twisted tape truncation percentage, pitch value, position and Reynolds number using 3D numerical simulation. A symm
Externí odkaz:
https://doaj.org/article/cda37fda22bc4776b205e63eb68f36e8
Autor:
Mehdi Ghalambaz, Hossein Arasteh, Ramin Mashayekhi, Amir Keshmiri, Pouyan Talebizadehsardari, Wahiba Yaïci
Publikováno v:
Nanomaterials, Vol 10, Iss 9, p 1656 (2020)
This study investigated the laminar convective heat transfer and fluid flow of Al2O3 nanofluid in a counter flow double-pipe heat exchanger equipped with overlapped twisted tape inserts in both inner and outer tubes. Two models of the same (co-swirli
Externí odkaz:
https://doaj.org/article/95f54aab099042d1aff7af086bb1fbae
Autor:
Apurv Kumar, Alireza Rahbari, Hossein Arasteh, Pouyan Talebizadehsardari, Morteza Hangi, Ramin Mashayekhi
Publikováno v:
Heat Transfer Engineering. 43:608-622
Al2O3–water nanofluids along with stationary and rotating twisted tape inserts are used to increase the rate of heat transfer in a plain tube. The simulations are conducted through varying the desi...
Publikováno v:
Chinese Journal of Chemical Engineering. 28:1522-1532
The effects of various surface roughness geometrical properties including roughness height (5%, 10%, 15%), number (3, 6), and shape (rectangular and triangular) on the flow and heat transfer of slip-flow in trapezoidal microchannels were investigated
Autor:
Masoud Afrand, Davood Toghraie, Hossein Arasteh, S. Hossein Motaharpour, Ramin Mashayekhi, Amir Keshmiri
Publikováno v:
Computers & Mathematics with Applications. 79:2203-2215
This is a numerical study of convective heat transfer of the Water-Al2O3 nanofluid in an oval channel using two-phase mixture model. The channel is fitted with two rows of twisted conical strip inserts with various directions relative to each other l
Publikováno v:
The European Physical Journal Plus. 136
This work presents the thermo-hydraulic performance of water–Al2O3 nanofluid flow in an oval tube fitted with two parallel conical twisted strips in different alignments including staggered with four wings (S-4), staggered with five wings (S-5), no
Autor:
Wahiba Yaïci, Pouyan Talebizadehsardari, Yongfeng Ju, Tiezhu Zhu, Hayder I. Mohammed, Ramin Mashayekhi, Afrasyab Khan
Publikováno v:
Nanomaterials
Volume 11
Issue 6
Nanomaterials, Vol 11, Iss 1570, p 1570 (2021)
Volume 11
Issue 6
Nanomaterials, Vol 11, Iss 1570, p 1570 (2021)
Copyright: © 2021 by the authors. The hydrothermal performance of multiple semi-twisted tape inserts inside a heat ex-changer pipe is numerically examined in three-dimensions. This study aims to find the optimum case for having the highest heat tran
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 141:1669-1685
This is a numerical study of heat transfer and flow in a counter-flow sinusoidal parallel-plate heat exchanger using metal foam in the channels’ divergent sections. The cold water fluid with Reynolds number of 100 and hot oil fluid with Reynolds nu
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 140:843-858
In the present study, the flow field and heat transfer have been simulated numerically inside a channel. The channel is under the constant heat flux. The main objective of this research is investigating the effect of the arrangement of the porous med