The assignment is to prepare a general plot that enables one to calculate the drag coefficient for flow past any submerged object as long as the sphericity can be calculated. This is needed to calculate the pressure drop. The y-axis of the plot should contain the drag coefficienton a logarithmic scale from 0.01 to 1000. The x-axis should be the Reynolds number (Rep) on a logarithmic scale between 10-1 and 106. There should be curves on the graph for values of Ψw between 1.0and 0.5 (in increments of 0.1).
Explain the relationship between the parameters. How does the drag coefficient change with sphericity? Does this make sense?