Pollutant concentrations predicted by a steady state Gaussian plume model
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie/South African Journal of Science and Technology
| Field | Value | |
| Title | Pollutant concentrations predicted by a steady state Gaussian plume model Besoedelstofkonsentrasies volgens ’n bestendige Gausspluimmodel | |
| Creator | Fourie, O. L. Venter, J. C. Vleggaar, C. M. | |
| Description | This article describes a computer program that estimates air pollutant concentrations in the vicinity of an elevated point source. The program is intended to be used in screening applications, i.e. applications where it is necessary to make a rapid analysis of a number of scenarios in order to identify situations where there may be cause for concern. The program uses a steady state Gaussian plume model and is based, with a number of exceptions, on Turner’s workbook. It is capable of calculating concentrations in cases of straightforward advection-diffusion, i.e. with a very high mixing layer, as well as in cases of fumigation or multiple reflections. The atmospheric stability classification is done with a scheme which applies to Highveld conditions. Both plume rise and plume spread are calculated using formulas established by Briggs. The effect of topography on the plume trajectory is taken into account in a rudimentary manner. ’n Rekenaarprogram wat lugbesoedelstofkonsentrasies in die omgewing van ’n hoëvlakpuntbron beraam, word beskryf. Die program is bedoel om in siftingstoepassings gebruik te word, dit wil sê toepassings waar ’n aantal situasies vinnig ondersoek moet word om moontlike knelpunte te identifiseer. Die program gebruik ’n bestendige Gausspluimmodel en is met ’n aantal uitsonderings op Turner se handleiding gebaseer. Dit kan konsentrasies bereken in gewone adveksie-diffusiegevalle, d.w.s. gevalle met ’n baie hoë menglaag, asook in gevalle waar verstikking of veelvuldige weerkaatsings plaasvind. Die benodigde stabiliteitsklasse word bepaal met ’n skema wat vir Hoëveldtoestande geld. Sowel die pluimstyging as die pluimspreiding word bereken met formules wat Briggs opgestel het. Die effek van topografie op die pluimtrajek word op ’n elementêre manier in ag geneem. | |
| Publisher | AOSIS | |
| Date | 1984-03-20 | |
| Identifier | 10.4102/satnt.v3i2.1070 | |
| Source | Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 3, No 2 (1984); 72-74 Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 3, No 2 (1984); 72-74 2222-4173 0254-3486 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://journals.satnt.aosis.co.za/index.php/satnt/article/view/1070/2187
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