Heat flux value

[LeeStr1]

I tried running the cht case (fixedFlux). But, I could not understand how the heat flux value 1e-6 is given here. Shouldn't it be 1e6? Though I tried 1e6, but the simulation crashes with error (because temperature T shoots up too high).

` faceWall
{
type externalWallHeatFluxTemperature;

    mode            power;

    Q               constant 1e-6;

    kappaMethod     fluidThermo;

    value           $internalField;
}`