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Results 11 - 20
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116
19 THERMODYNAMICS AND FLUID MECHANICS GROUP COMPUTATIONAL METHODS FOR ENTRY LENGTH HEAT TRANSFER BY COMBINED LAMINAR CONVECTION IN VERTICAL TUBES
"... in heated ducts have proved accurate but expensive in computer time and capacity. investigating to what extent simplification is possible without loss of accuracy. heat transfer to upward laminar flow with combined convection in a vertical tube is taken as typical. constant thermophysical properties ..."
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in heated ducts have proved accurate but expensive in computer time and capacity. investigating to what extent simplification is possible without loss of accuracy. heat transfer to upward laminar flow with combined convection in a vertical tube is taken as typical. constant thermophysical
An Empirical Study of Helical Coil Heat Exchanger Used in Liquid Evaporization and Droplet Disengagement for a Laminar Fluid Flow
"... Heat exchanger is an important component in industrial systems especially in process industries. Many commercial designs and types of heat exchangers are available in market for transfer of heat as well as for recovery of waste heat for the process plants. As helical coil have compact size and highe ..."
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tubes and the tube ends are connected by manifolds, which also acts as fluid entry and exit locations. In this paper, we focus on design parameters and heat transfer conditions of a vaporizer or generator of a simple vapour absorption refrigeration system having flow condition of refrigerant taken
Calculation of Pressure, Shear, and Flow in Lubrication Films for High Speed Bearings,"
- ASME JOURNAL OF LUBRICATION TECHNOLOGY,
, 1974
"... Inertial effects in lubrication flows, can be attributed to the roles of transient acceleration and, the conveclive momentum transport in the dynamic equilibrium condition. As they become important, only when the Reynolds number is very large, a self-consistent analysis must make allowance for the ..."
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Cited by 4 (0 self)
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at the entry edge of a bearing is different from the upstream pressure by an amount which is in the order of the mean velocity head of the film. At an exit edge, for practically important values of Reynolds number, the flow tends to maintain its velocity profile in the form of a free jet such that the pressure
Drag Reduction by Different Solutions of Polymers in Gravity Driven Flow
"... Experiments are performed for assessing the extent of drag reduction using different water soluble polymer solutions for the case of a liquid drained from a large cylindrical tank through exit pipes. The diameters of exit pipes considered are 2.89X10 3 m and 4X10 3 m.The polymers used are polyacryla ..."
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Cited by 1 (0 self)
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are polyacrylamide and polythene oxide. Experiments are performed using these polymer solutions for laminar as well as turbulent flow in the exit pipe. The optimum concentrations of polymer solutions which give maximum drag reduction are established. It has been observed that the optimum concentration is influenced
Drag Reduction by Surfactant Solutions in Gravity Driven Flow Systems
, 2013
"... ABSTRACT: Efflux time measurements are carried out for gravity draining of a liquid from a large cylindrical tank (where the flow is essentially laminar) through single exit pipe in the absence and presence of Cetyl Pyridinium Chloride (CPC) surfactant solutions. The variables considered are initia ..."
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ABSTRACT: Efflux time measurements are carried out for gravity draining of a liquid from a large cylindrical tank (where the flow is essentially laminar) through single exit pipe in the absence and presence of Cetyl Pyridinium Chloride (CPC) surfactant solutions. The variables considered
Linear stability of channel entrance flow
"... The spatial stability analysis of two dimensional, steady channel flow is investigated in the downstream entry zone. A model based on previous work, is presented for the base flow, which represents a small deformation of plane Poiseuille flow. The base flow evolution towards the fully developed stat ..."
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The spatial stability analysis of two dimensional, steady channel flow is investigated in the downstream entry zone. A model based on previous work, is presented for the base flow, which represents a small deformation of plane Poiseuille flow. The base flow evolution towards the fully developed
Performance Analysis of Heat Transfer and Effectiveness on Laminar Flow with Effect of Various Flow Rates
"... Abstract: In this paper investigation the heat transfer and effectiveness of the double pipe heat exchanger with two flow directions; one is parallel flow and counter flow direction. In these two directions, deem the laminar flow and from the experimental setup in use the exit temperature of both h ..."
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Abstract: In this paper investigation the heat transfer and effectiveness of the double pipe heat exchanger with two flow directions; one is parallel flow and counter flow direction. In these two directions, deem the laminar flow and from the experimental setup in use the exit temperature of both
Modelling the convective flow in solar thermal receivers
"... The natural convective flow inside a concentrating solar thermal cavity receiver is studied experimentally. The convective flow is driven by buoyancy forces and leads to heat losses. An experimental investigation of the flow inside a receiver was carried out using density differences produced using ..."
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Cited by 2 (1 self)
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the varying salt concentrations in a water tank. The flow was visualised for a range of cavity receiver orientations 0 ° (horizontal) to 90°(downwards) and Flux Grashof numbers 7x104 to 1010. The results show a circulatory flow develops as ambient fluids enters, rise through ‘heating ’ and exits the cavity. A
Multiple Flow Patterns and Heat Transfer in Confined Jet Impingement
- International Journal of Heat and Flow
, 2005
"... ABSTRACT The flow field of a 2-D laminar confined impinging slot jet is investigated. Numerical results indicate that there exist two different solutions in some range of geometric and flow parameters. The two steady flow patterns are obtained under identical boundary conditions but only with diffe ..."
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Cited by 3 (1 self)
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ABSTRACT The flow field of a 2-D laminar confined impinging slot jet is investigated. Numerical results indicate that there exist two different solutions in some range of geometric and flow parameters. The two steady flow patterns are obtained under identical boundary conditions but only
Flow Analysis of an Atmosphere Reentry Vehicle
"... Abstract––The main thrust of the paper is the evaluation of the aero thermodynamic analysis of reentry trajectory. Computational fluid-dynamics results are presented to show the flow field around a blunted cone-flare in hypersonic flow. This is of particularly interest since it features the hyperson ..."
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the hypersonic flow around planetary re entry vehicles, the reason between the cone and the flare is particularly critical with respect to the evaluation of the surface heat flux. Indeed, flow separation is induced by the shock wave boundary layer interaction, with subsequent flow re attachment, that can
Results 11 - 20
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116
