Abstract
We test assumptions and approximations used in existing coastal fumigation models of varying complexity. Several fumigation cases involving typical values of entrainment rate and plume spread at the interface of the plume and the thermal internal boundary layer (TIBL) are considered. It is observed that, when compared with the results from a physically more realistic Lagrangian stochastic model, many existing models that assume uniform and/or instantaneous vertical mixing in the TIBL give inaccurate results for large entrainment rate and/or small vertical plume spread at the plume-TIBL interface. We develop an improved analytical fumigation model based on a probability density function (PDF) approach, with its parameters calculated using results from a stochastic model for the horizontally homogeneous convective boundary layer. The new model is general and is capable of better representing the fumigation process than the existing analytical models. A limited number of field data support the model simulations for analogous input conditions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.