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