Blockage of natural convection boundary layer flow in a multizone enclosure

Scott, D Holland; Anderson, R.; Figliola, Richard

doi:10.1016/0142-727x(88)90073-2

Cited by 17 publications

(3 citation statements)

References 8 publications

(2 reference statements)

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“…The water test cell, Fig. 106, was equipped with a constant heat flux hot wall, a constant temperature cold wall, and an insulating partition with an aperture (doorway) of constant height (h : 11/2) and var'yin_ width w. The details relating to the original construction of the water cell are reported by Scott et al (1988), and the modifications made for the Colorado State experiments are given by Neymark (1988). Flow visualization experiments using dye injection were peribrmed for two aperture widths, w/W=O,OI and w/W=0.2, at a flux Rayleigh number of2xl0 j:.…”

Section: Colorado State Water-filled Enclosure Experimentsmentioning

confidence: 99%

CCM Continuity Constraint Method: A finite-element computational fluid dynamics algorithm for incompressible Navier-Stokes fluid flows

Williams

1993

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FOR THE UNITED STATES 1DISTRIBUTIONOF THIS DocUMIENT IS UNLI[VlITIEO DEPARTMENT OFENERGY This report has been reproduceddirectly from the best availablecopy. Available to DOE and DOE contractorsfrom the Office of Scientificand Technical information,P.O. Box 62, Oak Ridge, TN 37831; prices availablefrom (615) 576-8401, FTS 626-8401. Available to the public from the National Technical Information Service, U.S. Department of Commerce,5285 Port Royal Rd., Springfield,VA 22161.This report was prepared as an account of work sponsored by an agency of the United States Government.Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information,apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer,or otherwise, does not necessarily constitute or imply its endorsement, recommendation,or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarilystate or reflect those of the United States Governmentor any agency thereof.

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Section: Colorado State Water-filled Enclosure Experimentsmentioning

confidence: 99%

CCM Continuity Constraint Method: A finite-element computational fluid dynamics algorithm for incompressible Navier-Stokes fluid flows

Williams

1993

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“…Additionally, obstructions existence at the convection have been compared by Scott et al [11] to the opening function, where the blockages are like flaps. They split motion into two main categories: bulk density variations and motion pressure gradient, which may both be utilized to explain natural convection flow in multizone enclosures.…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamic mixed convection of TiO2–Cu/water between the double lid-driven cavity and a central heat source surrounding by a wavy tilted domain of porous medium under local thermal non-equilibrium

Mansour

Bakier

2023

SN Appl. Sci.

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The magnetohydrodynamic (MHD) mixed convection of heat and mass transfer is carried out using finite difference method applied inside a tilted porous cavity saturated with a hybrid nanofluid due to the presence of the double-moving lid and the heat sources. In contrast to the earlier research, various effects which are recognized by heat generation in the local thermal non-equilibrium case at the extended Brinkman Darcy model subjected to inclined magnetic field are thoroughly examined numerically. For instance, unusual observations of the cold mass surrounding the heat source emphasize that the maximum fluid temperature highly depends on the forced convection. Additionally, solid-phase temperature acts in accordance to the heat source location while fluid temperature is agitated by the moveable sides which points up the disparity at the thermal energy transportation. However, the transfer of heat and mass at the model requires a specific conduct due to the existence of damping factors. The magnetic field, for example, suppresses the fluid flow. Moreover, the thermal non-equilibrium condition deteriorates the global heat generation.

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“…In order to investigate the natural convection inside the envelope, the airflow between rooms needs to be computed. In theory, there are two types of flow between two rooms connected by a large opening: bulk density flow or boundary layer flow (Scott, Anderson, and Figliola 1988). They are characterized by the isothermality factor defined as the ratio of the air temperature difference between rooms (i.e.…”

Section: Convective Heat Transfer Between Roomsmentioning

confidence: 99%

Simple modelling procedure for the indoor thermal environment of highly insulated buildings heated by wood stoves

Georges

Skreiberg

2016

Journal of Building Performance Simulation

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and Technology (NTNU), Trondheim, Norway Kolbjørn Hejes vei 1b, Norway, laurent.georges@ntnu Post-print : Journal of Building Performance Simulation, Volume 9, Issue 6, 2016, p. 663-679 Simple Modelling Procedure for the Indoor Thermal Environment of Highly Insulated Buildings Heated by Wood StovesSpace heating using wood stoves is a popular solution in many European countries. The nominal power of the state-of-the-art stoves is oversized compared to the needs of highly insulated buildings, leading to a risk of overheating. A modelling procedure is here developed in order to investigate the indoor thermal environment generated by wood stoves in such buildings. This procedure is kept simple to perform all-year detailed dynamic simulations (e.g. using TRNSYS) at an acceptable computational cost.A specific experimental setup has been developed for validation, essentially regarding the interaction between the stove and the building. The largest source of error appears to be the thermal stratification in the room where the stove is placed. The experiments prove that the model gives a fair insight into the global thermal comfort. Therefore, it is possible to investigate the conditions required for a stove to be properly integrated in a highly insulated building.

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Blockage of natural convection boundary layer flow in a multizone enclosure

Cited by 17 publications

References 8 publications

CCM Continuity Constraint Method: A finite-element computational fluid dynamics algorithm for incompressible Navier-Stokes fluid flows

CCM Continuity Constraint Method: A finite-element computational fluid dynamics algorithm for incompressible Navier-Stokes fluid flows

Magnetohydrodynamic mixed convection of TiO2–Cu/water between the double lid-driven cavity and a central heat source surrounding by a wavy tilted domain of porous medium under local thermal non-equilibrium

Simple modelling procedure for the indoor thermal environment of highly insulated buildings heated by wood stoves

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