square duct
Turbulent Flow in Curved Square Duct: Prediction of Fluid flow and Heat transfer Characteristics
... curved square duct have been studied by Humphery, White law and Yee ...rectangular duct through numeric simulation and concluded that turbulent flow near the smooth corner is subjected to remarkable ...
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Numerical Study of Transient Forced Convection Heat Transfer in Square Duct with Nanofluid
... The model was applied to simulate the transient forced convection flows of Alumina–water and Copper oxide-warer nanofluid in a horizontal square duct for different Reynolds numbers and void fractions of ...
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Time Dependent Flow with Convective Heat Transfer through a Curved Square Duct with Large Pressure Gradient
... curved square duct for the constant curvature δ = ...the duct is treated heated while the inner wall cooled, the top and bottom walls being ...curved square passage that stimulates fluid ...
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PERFORMANCE ASSESSMENT AND EMPIRICAL CORRELATION IN A HEAT EXCHANGER SQUARE DUCT WITH DIAGONAL INSERTED GENERATORS
... As the previous works, there are found that the uses of the vortex generators were almost placed on the channel wall or on the tube wall. The vortex generators which placed on the tested walls were difficult to forming ...
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Numerical Study on Thermal and Flow Characteristics of Air in a Square Duct using Delta Wing Vortex Generators
... Abstract— The impact of delta wing vortex generators in a square duct on the thermal and flow characteristics execution has been numerically explored in this study. The vortex generator allows the air flow ...
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Numerical Investigation on Thermal Characteristics of Air in a Square Duct Using Ribs as Vortex Generator
... Abstract— The numerical investigation has been carried out on one wall of square duct to study the effect of influence of ribs upon thermal characteristics and fluid flow of air in a square ...
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Turbulent Heat Transfer and Pressure Loss in a Square Duct Heat Exchanger with Inclined Baffle Inserts
... a square-duct heat exchanger fitted with inclined- baffles are experimentally ...test duct having a uniform surface heat- ...test duct to produce longitudinal vortex flows through the test ...
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Thermo-Hydraulic Performance of a Roughened Square Duct Having Inclined Ribs with a Gap on Two Opposite Walls
... The literature review reveals that discrete inclined or V-shaped rib arrangement can yield better performance as compared to continuous rib arrangement. Only few researchers have been given the information about the ...
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Natural convection heat transfer in two square duct annuli filled with a nanofluid
... outer square cavity and a hot inner circular ...heated square cavity with an adiabatic square block at the ...a square duct where the outer square is maintained at a constant ...
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CuO/water Nanofluid Convective Heat Transfer Through Square Duct Under Uniform Heat Flux
... in square cross section duct is less than that of circular tube (because of reducing contact with the wall) in laminar flow as the friction factor in square cross section duct is ...of ...
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Heat transfer in MHD square duct flow of nanofluid with discrete heat sources
... the square duct and depicts the entrance temperature, without any natural convection effect, as the first heat source is positioned at 25 mm away from the entrance and the rest of the walls other than the ...
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CFD Investigation on Thermal Characteristics of Air in a Square Duct using Perforated RIBS
... that square duct having perforated ribs vortex generators the friction factor ratio increases as Reynolds number increases because in these ducts better mixing of air takes place and the vortex generator ...
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EXPERIMENTAL INVESTIGATION ON HEAT TRANSFER AND FRICTION FACTOR CHARACTERISTICS OF A STATIONARY SQUARE DUCT ROUGHENED BY V AND ᴧ-SHAPED RIBS
... roughened square duct having artificial roughness in the form of V and ᴧ -shaped rib, to determine the enhancement in heat transfer and friction factor to find out which one give the highest heat transfer ...
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Reynolds number dependence of mean flow structure in square duct turbulence
... We have performed direct numerical simulations of turbulent flows in a square duct considering a range of Reynolds numbers spanning from a marginal state up to fully de- veloped turbulent states at low ...
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Traveling-waves consistent with turbulence-driven secondary flow in a square duct
... through a vortex eduction study applied to snapshots of turbulent flow fields at low Reynolds numbers. In contrast to these “approximate” coherent structures, “exact” coherent structures ( travelling-waves, time-periodic ...
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Experimental Studies on Heat Transfer and Friction Factor Through Isothermal Square Duct with Twisted Tape Inserts
... Steady state was attained within 1 hour for first run, and 20 minutes for subsequent runs. Temperatures of the inlet and outlet of the cold and the hot waters were recorded throughout the experiments and isothermal ...
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Study Of Heat Transfer On The Square Duct Through W Type Turbulators
... Several cooling techniques have been developed to enhance heat transfer in square duct. Different rib arrays inside square channel are widely used to enhance heat transfer rate. The reason that ribs ...
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Performance Comparison of Twisted Tape and Screw Tape Inserts in Square Duct
... ,square duct inner, and circular annulus on heat transfer and pressure drop characteristics were experimentally ...inner square duct, and hot water flows through circular annulus, in counter ...
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“EXPERIMENTAL INVESTIGATIONS OF HEAT TRANSFER ENHANCEMENT IN TIP OF 180-DEGREE BEND OF SQUARE DUCT WITH VORTEX GENERATOR”
... stationary square 180- degree bend channel with winglet type vortex generator oriented at various shapes 3mmx3mm, 5mmx5mm,7mmx7mm,upstream, downstream, inline, and with various stream wise and span wise pitch for ...
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Turbulence-and buoyancy-driven secondary flow in a horizontal square duct heated from below
... Permanent repository link: http://openaccess.city.ac.uk/6938/ Link to published version: http://dx.doi.org/10.1063/1.3593462 Copyright and reuse: City Research Online aims to make resear[r] ...
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