Sharif Digital Repository

Cu-water nanofluid flow and heat transfer in a heat exchanger tube equipped with cross-cut twisted tape

Author

Nakhchi, M. E.

Publisher

Elsevier B.V,

Pub. Year

2018

Subjects

Cross-cut twisted tape. / Nanofluid. / Thermal performance. / Ducts. / Heat exchangers. / Heat transfer. / Nanoparticles. / Reynolds number. / Turbulence models. / Turbulent flow. / Volume fraction. / Circular ducts. / Heat exchanger tube. / Heat transfer and friction factors. / Nanofluids. / Nanoparticle volume fractions. / Near-wall region. / Twisted tapes. / Nanofluidics. / Copper. / Nanoparticle. / Water. / Article. / Cross cut twisted tape. / Energy. / Flow measurement. / Fluid mixing. / Friction. / Friction factor reduction. / Geometry. / Heat exchange. / Kinetics. / Mathematical analysis. / Simulation. / Swirl flow. / Thermal conductivity.

Friction factor and nusselt number in annular flows with smooth and slotted surface

Author

Nouri Borujerdi, A.

Publisher

Springer Verlag,

Pub. Year

2018

Subjects

Annular flow. / Friction factor. / Smooth and slotted surfaces. / Air engines. / Aspect ratio. / Chemical vapor deposition. / Friction. / Gas turbines. / Reynolds number. / Annular flows. / Concentric cylinders. / Correlation formulae. / Friction factors. / Internal air systems. / Local Nusselt number. / Rotational motion. / Surface friction. / Nusselt number.

Entropy generation of turbulent Cu–water nanofluid flow in a heat exchanger tube fitted with perforated conical rings

Author

Nakhchi, M. E.

Publisher

Springer Netherlands,

Pub. Year

2019

Subjects

Bejan number. / Entropy generation. / Nanofluid. / Perforated conical ring. / Entropy. / Finite volume method. / Friction. / Heat exchangers. / Nanoparticles. / Reynolds number. / Turbulent flow. / Volume fraction. / Entropy generation rate. / Heat exchanger tube. / Nanofluids. / Nanoparticle volume fractions. / Thermal irreversibility. / Nanofluidics.

Numerical investigation of turbulent Cu-water nanofluid in heat exchanger tube equipped with perforated conical rings

Author

Nakhchi, M. E.

Publisher

Elsevier B.V,

Pub. Year

2019

Subjects

Cu-water Nanofluid. / Numerical analysis. / Perforated conical ring. / Finite volume method. / Heat exchangers. / Heat transfer. / Heat transfer coefficients. / Navier Stokes equations. / Reynolds number. / Constant wall temperature. / Experimental analysis. / Heat exchanger tube. / Heat Transfer enhancement. / Nanofluids. / Numerical investigations. / Reynolds averaged Navier Stokes (RANS)equations. / Thermal Performance. / Nanofluidics.

Performance intensification of turbulent flow through heat exchanger tube using double V-cut twisted tape inserts

Author

Nakhchi, M. E.

Publisher

Elsevier B.V,

Pub. Year

2019

Subjects

Double V-cut twisted tape. / Friction factor. / Heat exchanger. / Performance intensification. / Atmospheric thermodynamics. / Boundary layers. / Heat transfer. / Reynolds number. / Turbulence models. / Turbulent flow. / Vortex flow. / Friction factors. / Heat transfer intensifications. / K-epsilon turbulence model. / Thermal boundary layer. / Thermal performance factors. / Twisted tapes. / Vortex generation. / Heat exchangers.

Sensitivity analysis of a heat exchanger tube fitted with cross-cut twisted tape with alternate axis

Author

Nakhchi, M. E.

Publisher

American Society of Mechanical Engineers (ASME),

Pub. Year

2019

Subjects

Cross-cut twisted tape. / Heat exchangers. / Regression analysis. / Reynolds equation. / Reynolds number. / Sensitivity analysis. / Surface properties. / Heat Transfer enhancement. / Heat-transfer ratios. / Nusselt number ratios. / Response surface method. / Second-order polynomial. / Thermal Performance. / Thermal performance factors. / Twisted tapes. / Heat transfer performance.

Numerical investigation of rectangular-cut twisted tape insert on performance improvement of heat exchangers

Author

Nakhchi, M. E.

Publisher

Elsevier Masson SAS,

Pub. Year

2019

Subjects

Cut ratio. / Heat transfer. / Rectangular-cut twisted tape. / Turbulent flow. / Drops. / Pressure drop. / Reynolds number. / Heat transfer and friction factors. / Heat transfer and pressure drop. / Numerical investigations. / Thermal Performance. / Thermal-hydraulic performance. / Three dimensional simulations. / Twisted tapes. / Heat exchangers.

Friction factor and nusselt number in annular flows with smooth and slotted surface

Author

Nouri Borujerdi, A.

Publisher

Springer Verlag,

Pub. Year

2019

Subjects

Annular flow. / Friction factor. / Smooth and slotted surfaces. / Air engines. / Aspect ratio. / Chemical vapor deposition. / Friction. / Gas turbines. / Reynolds number. / Annular flows. / Concentric cylinders. / Correlation formulae. / Friction factors. / Internal air systems. / Local Nusselt number. / Rotational motion. / Surface friction. / Nusselt number.

Experimental optimization of geometrical parameters on heat transfer and pressure drop inside sinusoidal wavy channels

Author

Erfanian Nakhchi, M.

Publisher

Elsevier Ltd,

Pub. Year

2019

Subjects

Heat exchangers. / Corrugated plates. / Friction factor.

Numerical investigation of different geometrical parameters of perforated conical rings on flow structure and heat transfer in heat exchangers

Author

Erfanian Nakhchi, M.

Publisher

Elsevier Ltd,

Pub. Year

2019

Subjects

Heat exchanger tube. / Perforated conical ring. / Recirculating flow. / Thermal performance. / Flow of fluids. / Geometry. / Nusselt number. / Reynolds number. / Flow and heat transfer. / Heat exchanger tube. / Heat Transfer enhancement. / Numerical investigations. / Recirculating flow. / Thermal Performance. / Thermal performance factors. / Turbulent intensities. / Heat exchangers.

Numerical investigation on the effect of the size and number of stages on the tesla microvalve efficiency

Author

Mohammadzadeh, K.

Pub. Year

2012

Subjects

Micropump. / Number of stages. / Tesla microvalve. / Diodicity. / Micro pump. / Micro valves. / Numerical investigations. / Steady-state computations. / Strong dependences. / Tesla-type valves. / Valve performance. / Reynolds number. / Valves (mechanical)

Numerical study on the performance of Tesla type microvalve in a valveless micropump in the range of low frequencies

Author

Mohammadzadeh, K.

Pub. Year

2013

Subjects

Low working frequencies. / Tesla microvalve. / Three-dimensional simulation. / Valveless micropump.

Simultaneous variation-aware architecture exploration and task scheduling for MPSoC energy minimization

Author

Momtazpour, M.

Pub. Year

2011

Subjects

Architecture exploration. / Energy minimization. / MPSoC. / Process variation. / Task scheduling. / Task scheduling. / Computer architecture. / Lakes. / Multiprocessing systems. / Multitasking. / Optimization. / Scheduling. / Scheduling algorithms. / Microprocessor chips.

Monitoring the role of polymer and surfactant concentrations on bubble size distribution in colloidal gas aphron based fluids

Author

Pasdar, M.

Publisher

Elsevier B.V,

Pub. Year

2018

Subjects

Bubble size distribution. / Bubbles stability. / Disproportionation. / The role of XG/SDBS concentration. / Bubbles (in fluids) / Diffusion in gases. / Diffusion in liquids. / Drilling fluids. / Gases. / Polymers. / Size distribution. / Surface active agents. / Xanthan gum. / Bubble size distributions. / Colloidal gas aphron. / Controlling mechanism. / Disproportionations. / Distribution curves. / Hydrocarbon reservoir. / Sodium dodecylbenzene sulfonate. / Surfactant concentrations. / Bubble columns. / Deionized water. / Dodecylbenzenesulfonate sodium. / Xanthan. / Article. / Colloid. / Concentration (parameters) / Controlled study. / Experimental study. / Gas. / Microbubble. / Microscopy. / Monitoring. / Priority journal. / Viscosity.

Investigating fluid invasion control by Colloidal Gas Aphron (CGA) based fluids in micromodel systems

Author

Pasdar, M.

Publisher

Elsevier B.V,

Pub. Year

2019

Subjects

Bubbly flow. / Colloidal gas aphrons. / Fluid invasion control. / Pore blockage. / Return permeability. / Wettability. / Colloids. / Drilling fluids. / Fracture. / Infill drilling. / Porous materials. / Sodium dodecyl sulfate. / Sulfur compounds. / Wetting. / Bubble size distributions. / Design and application. / Fluid invasion. / Fractured porous media. / Pore blockages. / Sodium dodecylbenzene sulfonate. / Flow of fluids.

Insight into the behavior of colloidal gas aphron (CGA) fluids at elevated pressures: an experimental study

Author

Pasdar, M.

Publisher

Elsevier B.V,

Pub. Year

2018

Subjects

Bubble size distribution. / Stability. / Bubble columns. / Bubbles (in fluids) / Convergence of numerical methods. / Diffusion. / Diffusion in liquids. / Hysteresis. / Petroleum reservoir engineering. / Size distribution. / Ambient conditions. / Bubble size distributions. / Colloidal gas aphrons. / Field application. / High pressure. / High-pressure experiment. / Hysteretic behavior. / Oil and gas reservoir. / Drilling fluids. / Colloidal gas aphron. / Dodecyl sulfate sodium. / Polymer. / Surfactant. / Unclassified drug. / Xanthan. / Article. / Biotechnology. / Compression. / Gas. / Microscopy. / Pressure. / Pressure volume curve. / Priority journal.

Authors’ reply to a comment on M. pasdar et al article

Author

Pasdar, M.

Publisher

Elsevier B.V,

Pub. Year

2019

Subjects

Capillary pressure. / Chemical parameters. / Fluid flow. / Gas diffusion. / High pressure microscopy. / Hyperbarism. / Interbubble gas diffusion. / Letter. / Microscopy. / Offshore oil industry. / Priority journal. / Surface tension. / Tension.

Insight into selection of appropriate formulation for colloidal gas aphron (CGA)-based drilling fluids

Author

Pasdar, M.

Publisher

China University of Petroleum Beijing,

Pub. Year

2020

Subjects

Bubble size analysis. / Colloidal gas aphrons. / Dispersion. / Rheology. / Stability.

Effect of localized corrosion on the galvanic corrosion of nitinol and dental alloys

Author

Afshar, A.

Pub. Year

2009

Subjects

Alloys. / Corrosion. / Artificial saliva. / Cyclic polarization curves. / Design/methodology/approach. / Direct contact. / ELectrochemical methods. / Galvanic corrosion. / Galvanic current. / Linear polarization. / Localized corrosion. / Mixed potential theory. / Orthodontic wires. / Polarization curves. / Prosthetic devices. / Surface area. / Aluminum corrosion. / Body fluids. / Cerium alloys. / Dentistry. / Galvanizing. / Polarization. / Prosthetics. / Scanning electron microscopy. / Stainless steel. / Wire. / Dental alloys.