Numerical Solution of Radiative Boundary Layer Flow in Porous Medium Due to Exponentially Shrinking Permeable Sheet Under Fuzzy Environment

doi:10.26565/2312-4334-2023-2-09

Amir Barhoi Duliajan College, Duliajan, Assam, India https://orcid.org/0000-0003-3533-6009
G.C. Hazarika Dibrugarh University, Dibrugarh, Assam, India https://orcid.org/0000-0003-3937-8919
Hrishikesh Baruah Duliajan College, Duliajan, Assam, India https://orcid.org/0000-0002-0747-6103
Pranjal Borah D.R. College, Golaghat, Assam, India https://orcid.org/0009-0007-6737-2027

DOI: https://doi.org/10.26565/2312-4334-2023-2-09

Keywords: Shrinking sheet, Fuzzified, computer codes, α-cut

Abstract

In this paper we are considering a fluid flows problem that contains two equation of motions and more than two parameters in the governing equation of motion. Which is namely Radiative Boundary Layer Flow in Porous Medium due to Exponentially Shrinking Permeable Sheet. The parameter are K=ck₀/Lθ, Pr=μc_p/κ_∞, N=4σ₁(T_∞)3/(3κ₁κ_∞), and ε denote the permeability parameter, Prandtl number, and radiation parameter and is the thermal conductivity variation parameter, respectively. The governing differential equation can be obtained by using the similarity variable technique, and then the governing equation of motion can be Fuzzified by the help of Zadeh extension theorem. The technique is used for the validation of the uncertainty of the equation of the motion. The effect of the K, Pr, N, and ε are discussed with the fuzzified governing equation of motion under fuzzy environment. It is observed none of the parameters are directly involved in the occurrence of the uncertainty of the solutions. The uncertainty occurs in the problem is due to the assumption and the numerical computation. Finally, the solution is being carried out under fuzzy environment. It is found that the increasing values of permeability parameter, the values of both the numbers Skin friction coefficient as well as Nusselt number are increases.

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