Normal solutions of a boundary-value problem arising in free convection boundary-layer flows in porous media

Zhongxin Zhang

Applied Mathematics and Computation, 2018, vol. 339, issue C, 367-373

Abstract: This paper is concerned with normal solutions of a two-point boundary-value problem of second order which arises in the steady free convection boundary-layer flow over a vertical permeable flat plate being embedded in a saturated porous medium with both prescribed heat flux and suction rate of the plate. We use a very simple argument to prove that there exists a λmin ∈ (1.3782407, 1.4166499) such that this problem has no normal solution for all λ < λmin , a unique normal solution for λ=λmin, and exactly two normal solutions θ1(η) and θ2(η) with θ1(η) < θ2(η) on [0,+∞) for each fixed λ > λmin , which is applied to the reduced boundary-layer system.

Keywords: Boundary-layer flow; Singular initial-value problem; Normal solution; Heat flux (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:339:y:2018:i:c:p:367-373

DOI: 10.1016/j.amc.2018.06.060

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