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heat transfer (48) 48
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algebraic reynolds stress model (10) 10
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Renewable Energy, ISSN 0960-1481, 02/2014, Volume 62, pp. 689 - 715
Journal Article
Solar Energy, ISSN 0038-092X, 09/2012, Volume 86, Issue 9, pp. 2852 - 2861
► An experimental study has been carried out on roughened solar air heater. ► Nusselt number and friction characteristics for dimple shaped roughness element.... 
Nusselt number | Solar air heater | Heat transfer | Dimple shaped | FRICTION FACTOR CORRELATIONS | CHANNEL | ENERGY & FUELS | PERFORMANCE | RIB ROUGHNESS | ARTIFICIALLY ROUGHENED DUCTS | Mechanical engineering
Journal Article
Applied Thermal Engineering, ISSN 1359-4311, 11/2017, Volume 126, pp. 458 - 469
Journal Article
Renewable and Sustainable Energy Reviews, ISSN 1364-0321, 03/2017, Volume 69, pp. 387 - 400
Journal Article
Energy, ISSN 0360-5442, 2010, Volume 35, Issue 1, pp. 202 - 212
In order to enhance rate of heat transfer to flowing air in the duct of a solar air heater, artificially roughened surface of absorber plate is considered to... 
Artificial roughness | Friction factor | Nusselt number | Solar air heater | TRANSFER ENHANCEMENT | ENERGY & FUELS | OPTIMAL THERMOHYDRAULIC PERFORMANCE | SHAPED RIB ROUGHNESS | EXPANDED METAL MESH | PRESSURE-DROP | RECTANGULAR CHANNELS | FRICTION FACTOR CORRELATIONS | ROUGHENED DUCT | THERMODYNAMICS | TRANSFER COEFFICIENT
Journal Article
Energy, ISSN 0360-5442, 2011, Volume 36, Issue 7, pp. 4531 - 4541
Journal Article
Renewable Energy, ISSN 0960-1481, 01/2018, Volume 115, pp. 824 - 835
The rib provided over absorber plate can improve the performance of solar air heater (SAH). The effect of forward chamfered ribbed absorber plate is studied in... 
Forward facing chamfered rib elements | Nusselt number enhancement | Correlations | Rib roughened absorber plate | Friction penalty | ROUGHNESS ELEMENTS | GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY | FLOW CHARACTERISTICS | ENERGY & FUELS | NUSSELT NUMBER | TURBULENT | ABSORBER PLATE | TRANSFER COEFFICIENT
Journal Article
International Journal of Heat and Fluid Flow, ISSN 0142-727X, 10/2015, Volume 55, pp. 104 - 119
We report on large-eddy simulations (LES) of fully-developed asymmetric flow in a duct of a rectangular cross-section in which square-sectioned, equally-spaced... 
Rib-roughened duct | LES | Stabilising and destabilising rotation | MECHANICS | THERMODYNAMICS | TURBULENT-FLOW | ENGINEERING, MECHANICAL
Journal Article
Heat and Mass Transfer, ISSN 0947-7411, 9/2019, Volume 55, Issue 9, pp. 2517 - 2532
Journal Article
FLOW TURBULENCE AND COMBUSTION, ISSN 1386-6184, 07/2016, Volume 97, Issue 1, pp. 45 - 78
The objective of this work is to verify the capabilities of a hybrid k-omega RANS/LES model for simulation of the unsteady three-dimensional flow in a ribbed... 
DETACHED-EDDY SIMULATION | Hybrid RANS/LES model | HEAT-TRANSFER | COOLING CHANNEL | Coriolis force | IMPINGING JETS | CENTRIFUGAL BUOYANCY | MECHANICS | THERMODYNAMICS | System rotation | k-omega model | CORIOLIS | Rib-roughened duct | FORCES | Turbulence modelling | Turbulence | Turbulent flow | Computational fluid dynamics | Computer simulation | Ducts | Fluid flow | Secondary flow | Cross sections
Journal Article
International Communications in Heat and Mass Transfer, ISSN 0735-1933, 11/2017, Volume 88, pp. 20 - 27
In present paper, solar air heater duct having aspect ratio 12 roughened with broken arc rib has been investigated. The broken arc is formed by creating... 
CFD | Friction factor | Nusselt number | Thermo-hydraulic performance | Gap position | Rib roughness | ARTIFICIAL ROUGHNESS | FRICTION FACTOR CORRELATIONS | ROUGHENED DUCT | MECHANICS | THERMODYNAMICS | TRANSVERSE | SURFACES | Architecture and energy conservation | Mechanical engineering | Investigations
Journal Article
Journal of Mechanical Science and Technology, ISSN 1738-494X, 1/2018, Volume 32, Issue 1, pp. 399 - 404
The Computational fluid dynamics (CFD) based analysis is carried out to investigate the thermal and hydraulic performance of circular rib roughened triangular... 
CFD | Engineering | Vibration, Dynamical Systems, Control | Circular ribs | Thermohydraulic performance parameter | Industrial and Production Engineering | Mechanical Engineering | Solar air heater | Roughened triangular duct | TRANSFER AUGMENTATION | ABSORBER PLATE | SHAPE ROUGHNESS ELEMENTS | FLOW | RIBS | ENGINEERING, MECHANICAL | SURFACES
Journal Article
Experimental Heat Transfer, ISSN 0891-6152, 11/2018, Volume 31, Issue 6, pp. 571 - 585
Protruded roughness geometry is generally considered to be simple, an innovative and economic technique for improving thermal performance of solar air heater.... 
solar air heater | roughened duct | Nusselt number | friction factor | ELEMENTS | THERMODYNAMICS | PERFORMANCE | ARTIFICIAL ROUGHNESS | ENGINEERING, MECHANICAL | Geometry | Friction | Roughness | Fluid flow | Friction factor | Aerodynamics | Heat transfer | Repair & maintenance
Journal Article
Energy, ISSN 0360-5442, 2011, Volume 36, Issue 11, pp. 6651 - 6660
Repeated ribs are considered an effective technique to enhance forced convection heat transfer in channels. In order to establish the performance of... 
Roughened channel | Solar air heater | Effective efficiency | Entropy generation | DESIGN | ENERGY & FUELS | ARTIFICIAL ROUGHNESS | FLOW | FRICTION FACTOR CORRELATIONS | THERMODYNAMICS | COLLECTOR | TRANSVERSE | TRANSFER COEFFICIENT | THERMOHYDRAULIC PERFORMANCE | EFFICIENCY | SURFACES | Friction | Entropy | Heat transfer coefficients | Channels | Ribs | Walls | Heat transfer | Air heaters
Journal Article
International Journal of Heat and Fluid Flow, ISSN 0142-727X, 12/2017, Volume 68, pp. 373 - 385
•LES of heat transfer in rotating rib-roughened duct was carried out.•Preliminary investigations on simpler test cases allowed to identify the influence of... 
Duct | Energy equation | Channel | Rib-roughened duct | LES | Rotation | Heat transfer | Turbulent heat flux | CHANNEL FLOW | CONVECTION | TURBULENT | ENGINEERING, MECHANICAL | MECHANICS | THERMODYNAMICS | Analysis | Force and energy
Journal Article
Renewable and Sustainable Energy Reviews, ISSN 1364-0321, 02/2016, Volume 54, pp. 635 - 652
Journal Article