A5055877877- Nanofluid Flow and Heat Transfer
- Heat Transfer and Optimization
- Heat Transfer Mechanisms
- Heat Transfer and Boiling Studies
- Fluid Dynamics and Turbulent Flows
- Fluid Dynamics and Vibration Analysis
- Solar Thermal and Photovoltaic Systems
- Field-Flow Fractionation Techniques
- Fluid Dynamics and Thin Films
- Heat and Mass Transfer in Porous Media
- Metaheuristic Optimization Algorithms Research
- Aerosol Filtration and Electrostatic Precipitation
- Advanced Thermodynamic Systems and Engines
- Spacecraft and Cryogenic Technologies
- Combustion and flame dynamics
- Wind and Air Flow Studies
- Engineering Applied Research
- Power Transformer Diagnostics and Insulation
- Advanced Multi-Objective Optimization Algorithms
- Optical measurement and interference techniques
- Geotechnical and Geomechanical Engineering
- Thermal Analysis in Power Transmission
- Fluid dynamics and aerodynamics studies
- Aerodynamics and Acoustics in Jet Flows
- Turbomachinery Performance and Optimization
Toronto Metropolitan University
2013-2024
Razi University
2007-2017
University of Tehran
2006-2007
A new comparative interferometric method has been developed to measure the thermal conductivity of nanofluids. The Al2O3-water nanofluid is measured relative deionized water by comparing steady-state temperature field in two fluids separated a conductive barrier using Mach-Zehnder Interferometer. not restricted nanofluids and could potentially be used any transparent fluid. Moreover, almost independent thermocouple measurement accuracy, with optical errors fringe gradients being primary...
Laminar free convection heat transfer from vertical and inclined arrays of horizontal isothermal cylinders in air were investigated experimentally. Experiments carried out using a Mach-Zehnder interferometer. For the array, cylinder spacing (center to center) varied 2 5 diameter. The same range also was used for array. 0 diameter Rayleigh number based on between 103 3× 103. effect each individual whole array investigated. It is found that any depends its position relative others. Heat...
The full Brinkman equation coupled with the heat and mass transfer equations was solved numerically using finite element technique. A square cavity filled hydrocarbon nanofluid of fullerene–toluene different concentration values fullerene subject to various heating conditions. Results have confirmed that in presence a enhancement is present until certain amount initial nanofluids. convection coefficient found be 16% higher when used as wetting fluid. In addition, it determined toluene has...
Abstract The main focus of the present study is to utilize artificial neural network (ANN) in predicting natural convection from horizontal isothermal cylinders arranged vertical and inclined arrays. effects separation spacing cylinder diameter ratio ( Py / d ), Px ) Rayleigh number Ra variation on average heat transfer arrays are considered via this prediction. training data for optimizing ANN structure based available experimental data. Levenberg-Marquardt back propagation algorithm used...
Steady two-dimensional free convection heat transfer from an isothermal horizontal cylinder located above adiabatic surface is studied experimentally and numerically. Experiments are carried out using a Mach–Zehnder interferometer for the ratios of spacing to its diameter L/D = 0, 0.1, 0.2, 0.3, 0.5, 0.7, 0.9 Rayleigh number range 500 15,000. Also, specifically developed computer code based on finite-volume method, SIMPLE algorithm, nonorthogonal discretization grid system used solution...
The need to more powerful electronic chips cause heat generation as a consequence. So it leads apply metal foam sink cooling methods. objective of this paper is experimentally investigate the effect inclination angle on temperature heated surface with and without in case free convection transfer conditions. Experimental modeling has been conducted using an electrical resistor aluminum plate different angles respect horizontal direction. results show that variations have linear dependency...
In this paper fuzzy logic has been used to model and predict the experimental results of free convection heat transfer from an isothermal horizontal cylinder confined between two adiabatic walls. Experiments included vertical position ranging 0 5 diameter. Also, Rayleigh number based on diameter varied 3.5 × 103 to 1.4 104. Experimental showed that, at each there exists optimum for which maximizes Nusselt number. The value increases as increases. A inference system named Mamdani was...
AbstractIn this paper an adaptive neuro-fuzzy inference system (ANFIS) is applied to model and predict the experimental results of free convection heat transfer from a vertical array attached cylinders, which can be considered as wavy surface, in presence wall. The effects wall–wavy surface spacing Rayleigh number variation on average are via prediction. training data for optimizing ANFIS structure based available data. A hybrid learning algorithm consisting gradient descends method...