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The straightforward numerical treatment of the time dependent advection in air pollution problems and its verification

Journal Article:

Abstract

A very simple Lagrangian finite difference scheme has been developed to calculate the time dependent advection of air pollutants. It is mass conserving and avoids numerical pseudo-diffusion. No condition of numerical stability is required. The Eulerian grid used for the diffusion part of the pollutant transport equation remains unchanged. There are no restrictions on temporally and spatially variable emission rates, production and destruction processes, wind velocity, diffusion coefficients, roughness parameters or inversion heights. The only exception is that the wind field should not be too far from being homogeneous in the horizontal direction (test of D. W. Pepper and P. E. Long, 1978, J. appl. Met. 17, 228-233). Steady state solutions are nearly identical with corresponding analytical solutions. The propagation of a pollutant cloud is simulated more realistically as compared with the advection treatment of E. Runca and F. Sardei (1975, Atmospheric Environment 9, 69-80) and M. Dunst (1980, Z. Met. 30, 47-59). The course of a diffusion experiment is modelled to demonstrate the efficiency of the proposed method. Because of its simplicity, the method is especially suited for use in license processes, for control, and for calculating health risks in relation to industrial and power plant accidents with the  More>>
Authors:
Publication Date:
Jan 01, 1982
Product Type:
Journal Article
Reference Number:
EDB-83-060118
Resource Relation:
Journal Name: Atmos. Environ.; (United Kingdom); Journal Volume: 16:10
Subject:
54 ENVIRONMENTAL SCIENCES; ADVECTION; MATHEMATICAL MODELS; TIME DEPENDENCE; AIR POLLUTION; ENVIRONMENTAL TRANSPORT; LAGRANGIAN FUNCTION; FUNCTIONS; MASS TRANSFER; POLLUTION; 500200* - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989)
OSTI ID:
6519214
Research Organizations:
Univ. Hamburg, Federal Republic of Germany
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: ATENB
Submitting Site:
HEDB
Size:
Pages: 2391-2399
Announcement Date:

Journal Article:

Citation Formats

Hinrichsen, K. The straightforward numerical treatment of the time dependent advection in air pollution problems and its verification. United Kingdom: N. p., 1982. Web.
Hinrichsen, K. The straightforward numerical treatment of the time dependent advection in air pollution problems and its verification. United Kingdom.
Hinrichsen, K. 1982. "The straightforward numerical treatment of the time dependent advection in air pollution problems and its verification." United Kingdom.
@misc{etde_6519214,
title = {The straightforward numerical treatment of the time dependent advection in air pollution problems and its verification}
author = {Hinrichsen, K}
abstractNote = {A very simple Lagrangian finite difference scheme has been developed to calculate the time dependent advection of air pollutants. It is mass conserving and avoids numerical pseudo-diffusion. No condition of numerical stability is required. The Eulerian grid used for the diffusion part of the pollutant transport equation remains unchanged. There are no restrictions on temporally and spatially variable emission rates, production and destruction processes, wind velocity, diffusion coefficients, roughness parameters or inversion heights. The only exception is that the wind field should not be too far from being homogeneous in the horizontal direction (test of D. W. Pepper and P. E. Long, 1978, J. appl. Met. 17, 228-233). Steady state solutions are nearly identical with corresponding analytical solutions. The propagation of a pollutant cloud is simulated more realistically as compared with the advection treatment of E. Runca and F. Sardei (1975, Atmospheric Environment 9, 69-80) and M. Dunst (1980, Z. Met. 30, 47-59). The course of a diffusion experiment is modelled to demonstrate the efficiency of the proposed method. Because of its simplicity, the method is especially suited for use in license processes, for control, and for calculating health risks in relation to industrial and power plant accidents with the goal of organizing efficient protection or evacuation.}
journal = {Atmos. Environ.; (United Kingdom)}
volume = {16:10}
journal type = {AC}
place = {United Kingdom}
year = {1982}
month = {Jan}
}