ON UNCERTAINTY AND LOCAL SENSITIVITY ANALYSIS FOR STEADY-STATE CONJUGATE HEAT TRANSFER PROBLEMS PART 1: EMISSIVITY, FLUID TEMPERATURE, AND CONDUCTANCE | Zendy

Christian Rauch | Zendy

Open Access

ON UNCERTAINTY AND LOCAL SENSITIVITY ANALYSIS FOR STEADY-STATE CONJUGATE HEAT TRANSFER PROBLEMS PART 1: EMISSIVITY, FLUID TEMPERATURE, AND CONDUCTANCE

Author(s) -

Christian Rauch

Publication year - 2011

Publication title -

frontiers in heat and mass transfer

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 18

ISSN - 2151-8629

DOI - 10.5098/hmt.v2.3.3006

Subject(s) - thermal fluids , emissivity , sensitivity (control systems) , heat transfer , frontier , thermal , steady state (chemistry) , thermodynamics , thermal conductivity , materials science , mechanics , environmental science , thermal resistance , physics , political science , chemistry , engineering , law , optics , electronic engineering

In recent years, significant effort has been placed into developing automated multiphysicssimulation. The exchange of boundary conditions has lead to more realistic as well as more complex simulations with usually slower convergence rate when the coupling is being perform ed between two different codes. In this paper the equations of local sensi tivities for element centered steady -state combined convection, conduction, and thermal radiation problems are being derived. A numerical analysis on the stability of the solution matrix is being conducted. Partial uncertainties and t he relative importance of the heat transfer modes are investigated by their uncertainty factors and conclusions are being drawn.

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