Wind tunnel Assessment of Wind Environment and Dust Suppression Effect of Windbreak in Port Bulk Storage Yards

Ning Su,Hongxin Zhao,Shitao Peng,Ningning Hong,Tao Hu,T Coenye,H Huang

doi:10.1051/e3sconf/202014502020

Abstract

Windbreaks projects are constructed in order to reduce the dusting in port bulk storage yards. The assessment of wind environment and dust suppression effects are important in the planning or preliminary design of such projects. This paper takes a large port bulk storage yard with 853m x 966m area as an example, velocity measurement wind tunnel tests were carried out. The wind velocity reduction ratio and dust suppression rate were used to access the wind environment and the dust suppression effect. The influence of windbreak height was investigated. The comprehensive wind speed reduction rate and dust suppression rate vary with windbreak height nearly linearly. And combined with spraying system, the dust suppression rate can reach beyond 95%, which provides reference and assessment method for relative engineering applications.

Highlights

Dusting in port bulk storage yards is one of the key atmospheric pollution sources for coastal cities
CFD simulation or wind tunnel test should be carried out to assess of the wind and dust suppression effect
The wind velocities measured by the Irwin probe in each case was processed as non-dimensional wind velocity reduction ratio denoted as λj

Summary

Introduction

Dusting in port bulk storage yards is one of the key atmospheric pollution sources for coastal cities. Windbreak projects constructed in the bulk storage yards are effective dust suppression facilities, which have been widely applied in engineering practices. CFD simulation or wind tunnel test should be carried out to assess of the wind and dust suppression effect. CFD simulation on the wind environment takes less effort and fruitful results should be used in the preliminary plan [2, 3]. While wind tunnel tests with higher precision, takes much effort and resources, should be carried out to validate the parametric settings, and provide more evident data to support the detailed construction plans, which is crucial for large and important projects [4, 5]. This paper takes a large port bulk storage yard with 853m x 966m area as an example, wind tunnel tests were carried out. The influence of windbreak height was investigated, which provide reference and assessment method for relative engineering applications

Test devices and models

Test conditions and cases

Wind velocity reduction ratio

Dust suppression rate

Wind environment assessment

Dust suppression effect