From: Experimental and theoretical studies of nanofluid thermal conductivity enhancement: a review

Models | Expressions | Remarks |
---|---|---|

Maxwell | Spherical particles | |

Hamilton-Crosser |
n = 3 for spheres n = 6 for cylinders
| |

Jeffrey | Spherical particles | |

Davis | High-order terms represent pair interaction of randomly dispersed sphere | |

Lu-Lin | Spherical and non-spherical particles |