### Abstract

The mixed convection boundary-layer flow on a vertical surface with an applied convective boundary condition is considered. Specific forms for the outer flow and surface heat transfer parameter are taken to reduce the problem a similarity system, which is seen to involve three parameters: m, the exponent of the outer flow; λ, the mixed convection parameter and B, the Biot number, as well as the Prandtl number. $${m = \frac{1}{5}}$$m=15 is found to be a transitional case with different behaviour depending on whether $${m > \frac{1}{5}}$$m>15 or $${m <\frac{1}{5}}$$m \frac{1}{5}}$$m>15, there is a critical value λ_{c} with solutions only for λ ≥ λ_{c}, a range of values of λ where there are dual solutions and the upper solution branch continuing into aiding flow. For $${0 <m <\frac{1}{5}}$$0 \frac{1}{5}}$$m>15 to solutions terminating at a finite value of λ > 0 and continuing to large values of |λ|. For m = 0 (uniform outer flow) only this latter behaviour is seen to arise. When m \frac{1}{5}}$$m>15.

Original language | English |
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Pages (from-to) | 2441-2460 |

Number of pages | 20 |

Journal | Acta Mechanica |

Volume | 226 |

Issue number | 8 |

DOIs | |

Publication status | Published - Mar 20 2015 |

### ASJC Scopus subject areas

- Mechanical Engineering
- Computational Mechanics

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## Cite this

*Acta Mechanica*,

*226*(8), 2441-2460. https://doi.org/10.1007/s00707-015-1334-2