DISPERSION IN AN OPEN-CUT COAL-MINE IN STABLY STRATIFIED FLOW

被引：8

作者：

GRAINGER, C ^{[1
]}

MERONEY, RN ^{[1
]}

机构：

[1] COLORADO STATE UNIV,DEPT CIVIL ENGN,FT COLLINS,CO 80523

来源：

BOUNDARY-LAYER METEOROLOGY | 1993年 / 63卷 / 1-2期

关键词：

D O I：

10.1007/BF00705379

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Discharges from combustion within a coal pit which occur during night-time inversion conditions may result in stagnant accumulation of smoke and dangerous gases which could inhibit mining operations. A wind-tunnel model study was performed to identify the range of flow and mixing conditions which could exist when stably stratified atmospheric surface flows pass over a large open pit. Flow penetration into the pit depended upon approach-flow stability (Froude number) and the strength of the thermal inversion within the coal pit. Measurements of wind speed and temperature were made upwind, within, and downwind of the pit. Concentration measurements were made within the pit, of surface sources released along pit walls. Pollutant levels were found to be strong functions of the approach-flow pit Froude number, source location, and release time.

引用

页码：117 / 140

页数：24

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