/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
|  \\    /   O peration     | Version:  plus                                  |  
|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
     \\/     M anipulation  |
-------------------------------------------------------------------------------
Description
    Calculates the second invariant of the velocity gradient tensor.

\*---------------------------------------------------------------------------*/

type            Q;
libs            ("libfieldFunctionObjects.so");

field           U;

executeControl  writeTime;
writeControl    writeTime;

// ************************************************************************* //