Table 7

Experiments focusing on Rheological Studies

Paper Reference

keff/kNF Conduction

keff/kNF Convection/mixed

NP material

NP size, (nm unless specified)

BF material

Φ,(vol% Unless specified)

T test, (K)

Experimental Apparatus Index No

Mechanis m Index No

μNF/μBF

Flow Status

Effects of Gravity

PBHT

CHT

Notes

[23]

-

1.08

TNT

10X100

EG

1

-

1,2,6

1.35

-

-

-

-

high shear viscosity recorded here

[23]

-

1.15

TNT

10X100

EG

1.75

-

1,2,6

1.75

-

-

-

-

[93]

-

-

Fe₂O₃ - PEO dispersant

30

water

3

299

-

2

1.015

-

-

-

-

high shear viscosity recorded here, averaged values

[93]

-

-

Fe₂O₃ - PVP dispersant

30

water

3

299

-

2

1.07

-

-

-

-

[83,85]

-

-

Al₂O₃

36

water

3

290

3

-

1.3

-

-

-

-

the effect of rising temperature reduces the effective viscosity. However, the values for augmented temperature for viscosity are not recorded here as they are a result of unstable and damaged NF due to the surfactant change of composition

[83,85]

-

-

Al₂O₃

36

water

6

290

3

-

2

-

-

-

-

[83,85]

-

-

Al₂O₃

36

water

10

290

3

-

3.1

-

-

-

-

[83,85]

-

-

Al₂O₃

47

water

1

290

3

-

1.4

-

-

-

-

[83,85]

-

-

Al₂O₃

47

water

4

290

3

-

3

-

-

-

-

[83,85]

-

-

Al₂O₃

47

water

9

290

3

-

5.3

-

-

-

-

[83,85]

-

-

CuO

29

water

1

290

3

-

1.35

-

-

-

-

[83,85]

-

-

CuO

29

water

4

290

3

-

2.5

-

-

-

-

[83,85]

-

-

CuO

29

water

9

290

3

-

4

-

-

-

-

Sergis and Hardalupas Nanoscale Research Letters 2011 6:391   doi:10.1186/1556-276X-6-391