[chaolian]

Hi, Kathrin
Thanks for pointing out this mistake.
----------------
volScalarField alphaTemp
(
IOobject
(
"alphaTemp",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
mesh,
dimensionedScalar("alphaTemp", dimless, 0)
);
alphaTemp.oldTime();
-------------------
Maybe this is the correct way to use. I am trying to store alphaTemp's old value for each time, since I want to use ddt(alphaTemp) later. I am not quite sure whether this is correct.