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Develop a MATLAB code to determine the isopleths for a puff at a specified time after the release of material. The MATLAB code should contain
Develop a MATLAB code to determine the isopleths for a puff at a specified time after the release of
material. The MATLAB code should contain specifications for user input of the following quantities: time after
release s wind speed ms total release kg release height m molecular weight of released gas, ambient
temperature K ambient pressure atm and isopleth concentration ppm
The MATLAB code output should include, at each point downwind, the downwind location, both y and z
dispersion coefficients, downwind centerline concentration, and isopleth distance offcenter
The MATLAB code output should also include a graph of the isopleth location.
For your MATLAB code construction, we suggest that you set up the cells to move with the puff center.
Otherwise, you will need a large number of cells.
Use the MATLAB code for the following case:
Release mass: kg
Release height: m
Molecular weight of gas:
Ambient temperature: K
Ambient pressure: atm
Isopleth concentration: ppm
Atmospheric stability: F
Run the MATLAB code for a number of different times, and plot the maximum puff width as a function of distance
downwind from the release.
Answer the following questions:
a At what distance downwind does the puff reach its maximum width?
b At what distance and time does the puff dissipate?
c Estimate the total area swept out by the puff from initial release to dissipation.
Your submitted work should include a description of your method of solution, a complete MATLAB code output at
s after release, a plot of maximum puff width as a function of downwind distance, and the calculation of
the total swept area.
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