Question

(c) The discharge of 30m²/s pollutants from a chemical plant into 10m deep river flowing at 0.3 m/s, can be modelled as a 2-D source across the river depth. It is found that the fishes in a certain zone die out, whereas those outside the zone are unaffected. Find out the extent of this critical zone, if the point of discharge is in the mid plane of a wide river. Justify your answer by giving a brief explanation with your own words. Sketch your diagram. (10 marks) (d) Describe a natural phenomenon that involves fluid flows where the streamlines are concentric circles. (8 marks)

Answer 1

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