Flow and heat transfer of Powell–Eyring fluid over a shrinking surface in a parallel free stream

作者: Alin V. Roşca , Ioan Pop

DOI: 10.1016/J.IJHEATMASSTRANSFER.2013.12.020

关键词: Stability (probability)Boundary layerFunction (mathematics)Work (thermodynamics)Surface (mathematics)ThermodynamicsSimilarity (geometry)PhysicsFlow (mathematics)Heat transferMathematical analysis

摘要: Abstract The present work extends the recently published paper by Jalil et al. (2013) [12] on boundary layer flow and heat transfer of Powell–Eyring fluid over a permeable surface in parallel free stream that is moving out origin to case when into (shrinking surface). governing equations are transformed self similar nonlinear ordinary differential using similarity transformations. Numerical results resulting obtained function bvp4c from Matlab for different values parameters. Dual solutions found negative parameter λ . A stability analysis has been also performed show first (upper branch) stable physically realizable, while second (lower not and, therefore, possible. We notice these characteristics have presented new original.

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