### Abstract

The two-dimensional boundary layer equations for a class of non-Newtonian fluids, for which the apparent viscosity can be expressed as a polynomial in the second scalar invariant of the rate of strain tensor, have been derived. These equations have been employed to analyse the flow near a stagnation point over a stationary impermeable wall. The non-Newtonian effects on the boundary layer velocity profile and the wall skin friction have been studied, and compared with the corresponding Newtonian fluid. The fluid velocity in the boundary layer has been shown to be retarded by the non-Newtonian effect while the skin friction increases proportionate to it.

Original language | English |
---|---|

Pages (from-to) | 95-102 |

Number of pages | 8 |

Journal | Physics and Chemistry of Liquids |

Volume | 38 |

Issue number | 1 |

Publication status | Published - 2000 |

### Fingerprint

### Keywords

- Boundary layer
- Non-Newtonian fluid
- Skin friction
- Stagnation point
- Two-dimensional flow

### ASJC Scopus subject areas

- Physical and Theoretical Chemistry
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics

### Cite this

*Physics and Chemistry of Liquids*,

*38*(1), 95-102.

**On the stagnation point flow of a special class of non-Newtonian fluids.** / Sacheti, Nirmal C.; Chandran, Pallath; Jaju, Rameshwar P.

Research output: Contribution to journal › Article

*Physics and Chemistry of Liquids*, vol. 38, no. 1, pp. 95-102.

}

TY - JOUR

T1 - On the stagnation point flow of a special class of non-Newtonian fluids

AU - Sacheti, Nirmal C.

AU - Chandran, Pallath

AU - Jaju, Rameshwar P.

PY - 2000

Y1 - 2000

N2 - The two-dimensional boundary layer equations for a class of non-Newtonian fluids, for which the apparent viscosity can be expressed as a polynomial in the second scalar invariant of the rate of strain tensor, have been derived. These equations have been employed to analyse the flow near a stagnation point over a stationary impermeable wall. The non-Newtonian effects on the boundary layer velocity profile and the wall skin friction have been studied, and compared with the corresponding Newtonian fluid. The fluid velocity in the boundary layer has been shown to be retarded by the non-Newtonian effect while the skin friction increases proportionate to it.

AB - The two-dimensional boundary layer equations for a class of non-Newtonian fluids, for which the apparent viscosity can be expressed as a polynomial in the second scalar invariant of the rate of strain tensor, have been derived. These equations have been employed to analyse the flow near a stagnation point over a stationary impermeable wall. The non-Newtonian effects on the boundary layer velocity profile and the wall skin friction have been studied, and compared with the corresponding Newtonian fluid. The fluid velocity in the boundary layer has been shown to be retarded by the non-Newtonian effect while the skin friction increases proportionate to it.

KW - Boundary layer

KW - Non-Newtonian fluid

KW - Skin friction

KW - Stagnation point

KW - Two-dimensional flow

UR - http://www.scopus.com/inward/record.url?scp=0033919410&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033919410&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0033919410

VL - 38

SP - 95

EP - 102

JO - Physics and Chemistry of Liquids

JF - Physics and Chemistry of Liquids

SN - 0031-9104

IS - 1

ER -