Table 5 Domain independence tests.

From: Nu–Gr correlation for laminar natural convection heat transfer from a sphere submitted to a constant heat flux surface

Domain length

\(C_{D,p}\)

\(C_{D}\)

\(\overline{Nu}\)

Inlet section

Outlet section

\(D_{\infty }\)

\(Gr = 10\)

 \(3D\)

\(3D\)

\(10D\)

2.422

7.072

2.939

 \(6D\)

\(6D\)

\(20D\)

2.417

7.075

2.934

\(Gr = 10^{7}\)

 \(3D\)

\(3D\)

\(3D\)

0.0145

0.0292

24.904

 \(6D\)

\(6D\)

\(6D\)

0.0148

0.0293

24.868