Table 2 The boundary conditions.

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

Definitions

Formula

No

Sphere surfaces

\(u = v = 0,p_{s} = 0, q = q_{s}\)

(5)

Inlet boundary

\(p_{0} = 0, \partial u/\partial x = 0,v = 0,T = T_{\infty }\)

(6)

Outlet boundary

\(p_{0} = 0, \partial u/\partial x = 0, v = 0, T = T_{\infty }\)

(7)

Axis of symmetry

\(\partial u/\partial y = 0, v = 0, \partial T/\partial y = 0\)

(8)

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