title: how to plot streamlines , when i know u and v components of velocity(numpy 2d arrays), using a plotting program in python?
body: <p>i hope the title itself was quite clear , i am solving 2D lid-driven cavity(square domain) problem using fractional step method , finite difference formulation (Navier-Stokes primitive variable form) , i have got u and v components of velocity over the entire domain , without manually calculating streamlines , is there a command or plotting tool which does the job for me?</p>
  
  <p>i hope this question is relevant enough to programming , as i need a tool for plotting streamlines without explicitly calculating them.</p>
  
  <p>I have solved the same problem in stream-vorticity NS form , i just had to take contour plot of stream function to get the streamlines. </p>
  
  <p>I hope that tool or plotter is a python library, and morevover installable in fedora (i can compromise and use mint)without much fuss!!  </p>
  
  <p>i would be grateful if someone points out the library and relevant command (would save a lot of time)</p>