a16fd1fa9e
Reference: Comte-Bellot, G., and Corrsin, S., "Simple Eulerian Time Correlation of Full- and Narrow-Band Velocity Signals in Grid-Generated, 'Isotropic' Turbulence," Journal of Fluid Mechanics, Vol. 48, No. 2, 1971, pp. 273–337.
34 lines
650 B
C
34 lines
650 B
C
IOdictionary dict
|
|
(
|
|
IOobject
|
|
(
|
|
"createBoxTurbDict",
|
|
runTime.constant(),
|
|
runTime,
|
|
IOobject::MUST_READ
|
|
)
|
|
);
|
|
|
|
// Extents in x, y, z directions
|
|
const vector L(dict.get<vector>("L"));
|
|
|
|
// Number of cells in x, y, z directions
|
|
const Vector<label> N(dict.get<Vector<label>>("N"));
|
|
|
|
// Wave number vs energy profile
|
|
autoPtr<Function1<scalar>> Ek(Function1<scalar>::New("Ek", dict));
|
|
|
|
// Number of modes
|
|
const label nModes = dict.get<label>("nModes");
|
|
|
|
// Mesh spacing in x, y and z directions
|
|
const vector delta
|
|
(
|
|
L.x()/scalar(N.x()),
|
|
L.y()/scalar(N.y()),
|
|
L.z()/scalar(N.z())
|
|
);
|
|
|
|
Random rndGen(1234);
|
|
|