I am trying to figure out how to generate a time based output showing snapshots of the evolution of the flow field around a cylinder. In essence, I want Nektar++ to output the values of the entire flow field after each time step. Having read through the User-Guide, I believe that I am able to do this by using <FILTERS> <FILTER TYPE="Checkpoint"> <PARAM NAME="OutputFile">IntermediateFields</PARAM> <PARAM NAME="OutputFrequency">1</PARAM> </FILTER> </FILTERS> Which will output a .chk file after each time step. Based on my OutputFrequency flag, I should get a .chk file after every time step. I am running this using the files from the Cylinder Flow example, and I am modifying Cylinder-Base.xml. However, when I run this, I get a single "Cylinder-Base_0.chk" file as opposed to 10 files. Any support would be greatly appreciated. Marcus Lander Graduate Research Student Oklahoma State University Marcus.lander@okstate.edu