A numerical approach for air velocity predictions in front of exhaust flanged slot openings

Vittorio Betta; Furio Cascetta; Pierluigi Labruna; Adolfo Palombo

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A numerical approach for air velocity predictions in front of exhaust flanged slot openings

机译：排气法兰槽开口前的空气速度预测的数值方法

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Nowadays the computational fluid dynamics (CFD) simulation represents an important tool for the performance analysis of the local exhaust ventilation (LEV) systems. In this paper air velocity field in the proximity of a free-standing flanged slot having a 6:1 aspect ratio is investigated by such an approach. Numerically calculated velocities both in centreline and off the hood axis are compared with the velocities obtained by the most popular experimental and theoretical formulas available in literature. Simple equations are with a common mathematical structure, which are provided for all the numerically simulated velocity trends.

机译：如今，计算流体动力学（CFD）仿真代表了用于局部排气通风（LEV）系统性能分析的重要工具。在本文中，通过这种方法研究了长宽比为6：1的独立式法兰槽附近的空气速度场。将中心线和引擎盖轴外的数值计算速度与文献中最流行的实验和理论公式获得的速度进行比较。简单的方程式具有通用的数学结构，为所有数值模拟的速度趋势提供了这些方程式。

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来源
《Building and Environment》 |2004年第1期|p.9-18|共10页
作者
Vittorio Betta; Furio Cascetta; Pierluigi Labruna; Adolfo Palombo;
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作者单位

DETEC, University of Naples, Federico II, Piazzale Tecchio 80, 80125 Naples, Italy;

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原文格式 PDF
正文语种 eng
中图分类建筑科学;
关键词
computational flow dynamic (CFD) simulation; local exhaust ventilation (LEV) systems; design guidelines;

机译：计算流动动态（CFD）模拟;局部排气通风（LEV）系统;设计指南;

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A numerical approach for air velocity predictions in front of exhaust flanged slot openings

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