Numerical assessment of turbulence effect on the evaluation of wind-driven rain specific catch ratio

被引：13

作者：

Abadie, Marc O. ^{[1
]}

Mendes, Nathan ^{[1
]}

机构：

[1] Pontifical Catholic Univ Parana, CCET, Mech Engn Grad Program, BR-80215901 Curitiba, Parana, Brazil

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2008年 / 35卷 / 10期

关键词：

Wind-driven rain; Specific catch ratio; Turbulence intensity; Reynolds stress model;

D O I：

10.1016/j.icheatmasstransfer.2008.08.013

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The present study aims to evaluate the importance of wind turbulence when performing droplet trajectory numerical simulations. Turbulence effect on Wind-Driven Rain is studied by calculating the specific catch ratio of 1 mm droplets for an isolated low-rise building windward surface under a 5 m/s normal wind. An Eulerian Second Moment Closure and a Lagrangian one-way coupling models are used to calculate the airflow field and the droplet trajectories respectively. Results show that turbulence has a negligible effect considering the whole windward wall but can substantially modify the value of the specific catch ratio in the case of Wind-Driven Rain gauges. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1253 / 1261

页数：9

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