Introduction - Prof. Chunendra K Sahu

[Music] [Music] hello I Dr chendra sahu from the Department of Civil Engineering at it khur and I welcome all of you to this course called environmental fluid mechanics I will be offering this course through nptl uh platform in the coming semester and this course is offered for uh senior ug strengths those who may be in their final years and PG strengths like MC mtech and PhD and also for faculty members who might be Affiliated at different institutes across the country so in this course as the name suggest we are going to fluid mechanics of the environment and what exactly it means so we all have been hearing a lot of talks about air pollution water pollution right so these all happens because environment is polluted how are they getting polluted that is a question that we are going to answer in this course right so we all know that environment has been already polluted there has been a lot of air pollution and if you think about above the ground and if you think about below the ground there is water pollution right but how does it happen this happens when there is a leakage of contaminants from a particular source right and and that disperses in the atmosphere or in the environment both above the ground and below the ground in form of different kind of flows like plumes and gravity currents so these flows arise when there is a density difference or there is a buoyancy difference so we are going to see how do these flows form like plumes gravity currents waves verticity Dynamics Etc uh in different conditions right and how terance transport from uh one point to another Point using these flows so in this course we will uh mostly use mathematical techniques to uh formulate these problems or formulate these Flows In deriv Solutions and we'll also refer to some lab experiments which have been performed by others to validate these models so we'll start first with the flows above the ground and and later we'll go to the flows below the ground and and we will see how transport happens in Porous media which which basically uh brings water pollution right so once the course is complete uh I believe you will have sufficient knowledge at least in the basics of this of this area uh how uh environment gets polluted from the techniques that you will learn in this course I believe you'll be able to apply to more complicated uh or or more realistic type scenarios uh for it practical use so I look forward to meeting all of you during the course and and I'll be happy to answer more uh uh questions you may have uh through email thank you