Main Title |
Mathematical Models Associated with Point Line Source Discharges in Rivers. |
Author |
Lin, Philip C. L. ;
|
CORP Author |
Environmental Monitoring and Support Lab.-Cincinnati, OH. |
Year Published |
1983 |
Report Number |
EPA-600/4-83-021; |
Stock Number |
PB83-207373 |
Additional Subjects |
Water pollution ;
Mathematical models ;
Rivers ;
Sampling ;
Fluid flow ;
Dispersions ;
Sources ;
Point sources ;
Path of pollutants ;
Numerical solution
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB83-207373 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
56p |
Abstract |
A literature search was conducted in the area of mass dispersion from instantaneous and continuous sources in bounded and unbounded flows. This study presents a mathematical model consisting of only two nondimensionalized variables and capable of generating universal concentration profiles of the pollutants in a rectangular channel flow for specified initial and boundary conditions. Determination of diffusion coefficients, mixing distance, sampling location and number of sampling points in a cross-section is possible. In other aspects, determination of the minimum sampling frequency required to collect a representative composite sample based on the previous effort is reexamined. It is concluded that a minimum sampling frequency of eight (8) for most of the flow and concentration patterns in the complete mixing zone is sufficient to provide enough accuracy for a representative sample collected by three out of four known compositing techniques. |
NTIS Title Notes |
Research rept. 1980-81. |
PUB Date Free Form |
May 83 |
Category Codes |
13B; 68D |
NTIS Prices |
PC A04/MF A01 |
Primary Description |
600/06 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
324620601 |
Origin |
NTIS |
Type |
CAT |