Open Access
Table 1
Geometrical and physical data.
| Parameters | Symbols | Numerical values | Units | References |
|---|---|---|---|---|
| Viscosity of base fluid | μbf | 10−2 | [Pa.s] | [41] |
| Radius of the disc | R | 18.7×10−3 | [m] | [42] |
| Initial film thickness | h0 | 10−5 | [m] | [43] |
| Amplitude of oscillation | ha | 0.2×10−5 | [m] | – |
| Porous disc thickness | H* | 22×10−4 | [m] | [44] |
| Permeability parameter in the r -direction | αr | 2.2×10−13 | [m4/N.s] | [45] |
| Permeability parameter in the z -direction | αz | 3.5×10−14 | [m4/N.s] | [45] |
| Sinusoidal motion frequency | f | 1 | [Hz] | [46] |
| Volume fraction of particle | φ | 0, 0.1, 0.3 | [−] | [46] |
| Material constant responsible for the couple stress property | η | 0, 4×10−14, 9×10−14, 1.6×10−13 | [N.s] | [20] |
| Dimensionless couple stress parameter |
|
0, 0.2, 0.3, 0.4 | [−] | – |
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