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- Mohammadreza Hassan, Rad Sadri, +4 authors Emad Sadeghinezhad
- Entropy
- 2013

This article mainly concerns theoretical research on entropy generation influences due to heat transfer and flow in nanofluid suspensions. A conventional nanofluid of alumina-water (Al 2 O 3-H 2 O) was considered as the fluid model. Due to the sensitivity of entropy to duct diameter, mini-and microchannels with diameters of 3 mm and 0.05 mm were considered,… (More)

- Mohammad R. Safaei, Marjan Goodarzi, Omid Mahian, Mahidzal B. Dahari, Somchai Wongwises
- Scientometrics
- 2016

In recent years, some scholars use multiple affiliations in their papers due to financial supports from different institutes and universities that are beyond common collaborations. The organizations are interested in employing highly cited professors to climb their rank in the world. Regarding this important issue, a survey prepared and shared among 300… (More)

- Hooman Yarmand, Samira Gharehkhani, Salim Newaz Kazi, Emad Sadeghinezhad, Mohammad Reza Safaei
- TheScientificWorldJournal
- 2014

Thermal characteristics of turbulent nanofluid flow in a rectangular pipe have been investigated numerically. The continuity, momentum, and energy equations were solved by means of a finite volume method (FVM). The symmetrical rectangular channel is heated at the top and bottom at a constant heat flux while the sides walls are insulated. Four different… (More)

- Hooman Yarmand, Goodarz Ahmadi, +4 authors Abu Bakar Mahat
- Entropy
- 2014

The entropy generation based on the second law of thermodynamics is investigated for turbulent forced convection flow of ZrO2-water nanofluid through a square pipe with constant wall heat flux. Effects of different particle concentrations, inlet conditions and particle sizes on entropy generation of ZrO2-water nanofluid are studied. Contributions from… (More)

- Hussein Togun, Mohammad R. Safaei, +4 authors Emad Sadeghinezhad
- Applied Mathematics and Computation
- 2014

Keywords: Separation flow Backward-facing step Turbulent and laminar flow Nanofluid a b s t r a c t This paper presents a numerical study of heat transfer to turbulent and laminar Cu/water flow over a backward-facing step. Mathematical model based on finite volume method with a FORTRAN code is used to solve the continuity, momentum, energy and turbulence… (More)

- M. Goodarzi, M. R. Safaei, +5 authors N. Jomhari
- TheScientificWorldJournal
- 2014

The effect of radiation on laminar and turbulent mixed convection heat transfer of a semitransparent medium in a square enclosure was studied numerically using the Finite Volume Method. A structured mesh and the SIMPLE algorithm were utilized to model the governing equations. Turbulence and radiation were modeled with the RNG k-ε model and Discrete… (More)

- Mohammad Reza Safaei, Goodarz Ahmadi, +4 authors Mehrdad Massoudi
- 2016

This study examined the heat transfer coefficient, friction loss, pressure drop and pumping power needed for the use of nanofluid coolants made of a mixture of suspension of graphene nanoplatelets–silver in water in a rectangular duct. A series of calculations were performed for the coolant volume flow rate in the range of 5000 ď Re ď 15,000 under a fully… (More)

- M. R. Safaei, O. Mahian, +4 authors S. Gharehkhani
- TheScientificWorldJournal
- 2014

This paper addresses erosion prediction in 3-D, 90° elbow for two-phase (solid and liquid) turbulent flow with low volume fraction of copper. For a range of particle sizes from 10 nm to 100 microns and particle volume fractions from 0.00 to 0.04, the simulations were performed for the velocity range of 5-20 m/s. The 3-D governing differential equations were… (More)

- F. Garoosi, Mohammad R. Safaei, Mahidzal B. Dahari, K. Hooman
- Applied Mathematics and Computation
- 2015

- Hamid Reza Safaei, Mohammad Reza Safaei, Vahid Rahmanian
- 2012

The zinc-Zeolite Socony Mobil-Five nano-particles (Zn-ZSM-5 NPs) composite was prepared and applied successfully as a new coating material to improve the corrosion resistance of steel. The corrosion type and quality of both pure zinc and our new coating material, Zn-ZSM-5 NPs, were studied using mass loss, impedance and electro-chemical polarization… (More)