In addition to an example of your data, it is also helpful for information on the steps you are taking in ParaView. Are you using the Plot Over Line filter (as is customary to plot a variable for distance) or do you have a data set with a bunch distance/coefficient pairs? From the example graph you gave, it sounds like the distance comes from some source other than Plot Over Line. The data are not given in distance order, so ParaView is connecting lines back and forth in the order in which the data are listed.
This is an attachment for my 3D wing at AOA of 6.2. This is what I am getting at the moment. I dont have the lines anymore as I plotted as points but the data is looking very off and I’m not sure why. I am using Plot Data and creating the lines first and then creating the points.
This occurs with any 3D data that I produce even if the experimental results are equating to the coefficient of lift and drag I get in the solver log. I can plot 2D results fine in ParaView.