I have obtained a set of data including discrete velocity and pressure from solving the Navier-Stokes equations. I know only how to output them by a vtk file, which cannot work on Tecplot. So, there are other file forms, like .dat, .plt., which can applied on Tecplot? If yes, what are their commands?
PS: the following is an example of outputing discrete data:
unless you initialise the VTKOutput with legacy=True, VTU files will now be written (if you have a relatively new version of NGSolve), which I believe tecplot can open.
is correct. Adding the legacy=True argument will write vtk files (rather than vtu). However, the vtu output is very new! You need a nightly build of NGSolve or build from the current master branch, as this update to the VTKOutput was introduced after the release of v6.2.2004.