Estimation of the Time-dependent Heat Flux using the Temperature Distribution at a Point in a Non Homogenous Geometry by Inverse Method

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Eftekharinia M.R.; MOHAMMADIUN M.; Shafee Sabet Gh.; MOHAMMADIUN H.

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Journal: JOURNAL OF MECHANICAL ENGINEERING Year:2018 | Volume:48 | Issue:1 (82) Page(s): 27-33

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Title

Estimation of the Time-dependent Heat Flux using the Temperature Distribution at a Point in a Non Homogenous Geometry by Inverse Method

Author(s)

Eftekharinia M.R. | MOHAMMADIUN M. | Shafee Sabet Gh. | MOHAMMADIUN H. | Issue Writer Certificate

Keywords

Conjugate gradient method

Time-dependent heat flux

Noisy data

Axisymmetric

non homogenous geometry

General coordinate method

Abstract

In this paper, the Conjugate gradient method, coupled with the adjoint problem, is used in order to solve the inverse heat conduction problem and estimation of the Time-dependent heat flux, using temperature distribution at a point in a non homogenous geometry. Also, the effect of Noisy data on the final solution is studied. The numerical solution of the governing equations is obtained by employing a finite-difference technique. For solving this problem, the General coordinate method and body fitted coordinate method are used. The irregular region in the physical domain (r, z) is transformed into a rectangle in the computational domain (ξ , η ). The present formulation is general and can be applied to the solution of boundary inverse heat conduction problems over any region that can be mapped into a rectangle. The obtained results show the good accuracy of the presented method. Also, the solutions have good stability even if the input data includes noise. The problem is solved in an Axisymmetric case. Applications of this model is in the thermal protect systems (t. p. s. ).

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APA: Copy

Eftekharinia, M.R., MOHAMMADIUN, M., Shafee Sabet, Gh., & MOHAMMADIUN, H.. (2018). Estimation of the Time-dependent Heat Flux using the Temperature Distribution at a Point in a Non Homogenous Geometry by Inverse Method. JOURNAL OF MECHANICAL ENGINEERING, 48(1 (82) ), 27-33. SID. https://sid.ir/paper/269837/en

Vancouver: Copy

Eftekharinia M.R., MOHAMMADIUN M., Shafee Sabet Gh., MOHAMMADIUN H.. Estimation of the Time-dependent Heat Flux using the Temperature Distribution at a Point in a Non Homogenous Geometry by Inverse Method. JOURNAL OF MECHANICAL ENGINEERING[Internet]. 2018;48(1 (82) ):27-33. Available from: https://sid.ir/paper/269837/en

IEEE: Copy

M.R. Eftekharinia, M. MOHAMMADIUN, Gh. Shafee Sabet, and H. MOHAMMADIUN, “Estimation of the Time-dependent Heat Flux using the Temperature Distribution at a Point in a Non Homogenous Geometry by Inverse Method,” JOURNAL OF MECHANICAL ENGINEERING, vol. 48, no. 1 (82) , pp. 27–33, 2018, [Online]. Available: https://sid.ir/paper/269837/en

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