Search results for " Convection"

showing 10 items of 110 documents

Low-Prandtl Number Natural Convection in Volumetrically Heated Rectangular Enclosures - I. Slender Cavity, AR=4

2000

Natural ConvectionEnclosureInternal Heat GenerationCFDSettore ING-IND/19 - Impianti Nucleari
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Influence of a Magnetic Field on Liquid Metal Free Convection in a Differentially Heated Cubic Enclosure

2002

Natural ConvectionEnclosureMagnetohydrodynamicCFDLiquid MetalSettore ING-IND/19 - Impianti Nucleari
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Numerical Simulation of MHD Fully Developed Buoyant Flow at Low Pr: “Direct” vs. “Ad hoc” Treatment of the Hartmann Layers

2001

Natural ConvectionHartmann LayerMagnetohydrodynamicCFDSettore ING-IND/19 - Impianti Nucleari
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Heat Transfer in Low-Prandtl Number Free Convection from Internally Heated Rectangular Enclosures

2000

Natural ConvectionRectangular EnclosureCFDLow Prandtl Number FluidSettore ING-IND/19 - Impianti NucleariInternal Heating
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A Test Rig for the Investigation of Free Convection Heat Transfer in Enclosures at High Rayleigh Number

1998

Natural ConvectionRectangular EnclosureHeat TransferSettore ING-IND/19 - Impianti Nucleari
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Measurement of Local Hot-Wall Heat Transfer in High-Rayleigh Number Free Convection Flow

1999

Natural ConvectionRectangular EnclosureHeat TransferSettore ING-IND/19 - Impianti Nucleari
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Influence of Rayleigh Number and End Wall Boundary Conditions on Free Convection Heat Transfer in a Rectangular Enclosure

2000

Natural ConvectionRectangular EnclosureRayleigh numberHeat TransferSettore ING-IND/19 - Impianti Nucleari
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Determination of the electroactive area of graphite+polyethylene composite electrodes. Uncompensated resistance effects and convolution analysis of c…

1998

In this work, it is shown how the convolution analysis of chronoamperograms permits the observation of the uncompensated resistance and the natural convection effects on the electrochemical response of potassium ferrocyanide. The uncompensated resistance causes the current intensity to follow the Cottrell equation only after a certain critical time. The convolution of chronoamperograms worked out at different integration times shows a maximum when this time is long enough. The classical diffusion equations cannot explain this phenomenon themselves. The development of this maximum associated with the natural convection is discussed. If both these factors, the ohmic drop and the natural conve…

Natural convectionChemistryGeneral Chemical EngineeringDrop (liquid)Composite numberMineralogyMechanicsPolyethyleneAnalytical Chemistrychemistry.chemical_compoundElectrodeElectrochemistryGraphiteOhmic contactCottrell equationJournal of Electroanalytical Chemistry
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Constraining the Equation of State of Neutron Stars with Genral Relativity

2005

When a radio pulsar breakes down by virtue of magnetodipole emission, its gravitational mass decreases accordingly. If the pulsar in hosted in a binary system, this mass loss will increase the orbital period of the system. We show that this relativistic effect can be indeed observable if the NS is fast and magnetized enough and that, if observed, it will help to put tight constraints on the equation of state of ultradense matter.

Neutron stars Relativity and gravitation Thermodynamic processes conduction convection equations of state
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A NEW SOLVER FOR NON-ISOTHERMAL FLOWS IN NATURAL AND MIXED CONVECTION

2022

Most thermal fluid flow of real-life practical problems fall in the category of low Mach-number or incompressible flow (e.g., industrial flows inside ducts, or around stationary/moving objects, flows in biological/biomedical problems, or atmospheric flows). Several numerical techniques have been proposed for simulation of thermal flows, Finite Difference (FDM), Finite Element (FEM), Finite Volume (FVM) and Lattice Boltzmann (LBM) methods. Unlike the FVMs and FEMs, the classical FDMs show some difficulties in handling irregular geometries. Conventional formulation of FEMs (e.g., Galerkin FEMs) suffers from the lack of local mass balance, recovered by modified formulations (Narasimhan & W…

New numerical solver for natural/mixed convection Discretization over unstructured grids Use of the Oberbeck–Boussinesq aproximation
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