Skip read the header in the vtk file
subroutine read_header()
!< Skip read the header in the vtk file
implicit none
DebugCall('read_output_vtk: read_header')
read(IN_FILE_UNIT, *) !'# vtk DataFile Version 3.1'
read(IN_FILE_UNIT, *) !'cfd-iitm output' ! comment line
read(IN_FILE_UNIT, *) !trim(read_data_format)
read(IN_FILE_UNIT, *) !'DATASET STRUCTURED_GRID'
!read(IN_FILE_UNIT, *)
end subroutine read_header