docs: def Flemmer_Banks(Re):
      r'''Calculates drag coefficient of a smooth sphere using the method in
      [1]_ as described in [2]_.
  
      .. math::
          C_D = \frac{24}{Re}10^E
  
          E = 0.383Re^{0.356}-0.207Re^{0.396} - \frac{0.143}{1+(\log_{10} Re)^2}
  
      Parameters
      ----------
      Re : float
          Reynolds number of the sphere, [-]
  
      Returns
      -------
      Cd : float
          Drag coefficient [-]
  
      Notes
      -----
      Range is Re <= 2E5
  
      Examples
      --------
      >>> Flemmer_Banks(200.)
      0.7849169609270039
  
      References
      ----------
      .. [1] Flemmer, R. L. C., and C. L. Banks. "On the Drag Coefficient of a
         Sphere." Powder Technology 48, no. 3 (November 1986): 217-21.
         doi:10.1016/0032-5910(86)80044-4.
      .. [2] Barati, Reza, Seyed Ali Akbar Salehi Neyshabouri, and Goodarz
         Ahmadi. "Development of Empirical Models with High Accuracy for
         Estimation of Drag Coefficient of Flow around a Smooth Sphere: An
         Evolutionary Approach." Powder Technology 257 (May 2014): 11-19.
         doi:10.1016/j.powtec.2014.02.045.
      '''
      E = 0.383*Re**0.356 - 0.207*Re**0.396 - 0.143/(1 + (log10(Re))**2)
      Cd = 24./Re*10**E
      return Cd