The Velocity Characteristics of Ventilated RoomsSource: Journal of Fluids Engineering:;1978:;volume( 100 ):;issue: 003::page 291DOI: 10.1115/1.3448669Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Measured and calculated values of the velocity characteristics of a modeled room with ventilation arrangements are reported. The measurements were obtained by laser-Doppler anemometry and the calculations by the solution, in finite-difference form, of two-dimensional, elliptic, partial-differential equations representing conservation of mass, momentum, turbulence energy and dissipation rate. The results demonstrate that the precision of calculation is adequate for design purposes although, for slots much smaller than the width of the room, three-dimensional effects become important. They quantify, for example, the extent to which a decrease in supply area leads to an increase in air velocities for a given mass flow rate.
keyword(s): Momentum , Flow (Dynamics) , Lasers , Measurement , Turbulence , Energy dissipation , Ventilation , Design , Accuracy AND Equations ,
|
Collections
Show full item record
contributor author | P. V. Nielsen | |
contributor author | A. Restivo | |
contributor author | J. H. Whitelaw | |
date accessioned | 2017-05-08T23:05:02Z | |
date available | 2017-05-08T23:05:02Z | |
date copyright | September, 1978 | |
date issued | 1978 | |
identifier issn | 0098-2202 | |
identifier other | JFEGA4-26936#291_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/91161 | |
description abstract | Measured and calculated values of the velocity characteristics of a modeled room with ventilation arrangements are reported. The measurements were obtained by laser-Doppler anemometry and the calculations by the solution, in finite-difference form, of two-dimensional, elliptic, partial-differential equations representing conservation of mass, momentum, turbulence energy and dissipation rate. The results demonstrate that the precision of calculation is adequate for design purposes although, for slots much smaller than the width of the room, three-dimensional effects become important. They quantify, for example, the extent to which a decrease in supply area leads to an increase in air velocities for a given mass flow rate. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | The Velocity Characteristics of Ventilated Rooms | |
type | Journal Paper | |
journal volume | 100 | |
journal issue | 3 | |
journal title | Journal of Fluids Engineering | |
identifier doi | 10.1115/1.3448669 | |
journal fristpage | 291 | |
journal lastpage | 298 | |
identifier eissn | 1528-901X | |
keywords | Momentum | |
keywords | Flow (Dynamics) | |
keywords | Lasers | |
keywords | Measurement | |
keywords | Turbulence | |
keywords | Energy dissipation | |
keywords | Ventilation | |
keywords | Design | |
keywords | Accuracy AND Equations | |
tree | Journal of Fluids Engineering:;1978:;volume( 100 ):;issue: 003 | |
contenttype | Fulltext |