The effect of the measurement errors has been investigated thoroughly, since the inherent resolution loss due to the errors was considered the major source of the solution inaccuracy. The bias, along with the distance, dramatically changes, as can be seen in the plot. However, there is no such boundary in engineering applications that prevents heat flow perfectly.įigure 3 shows the recovered heat flux, along with the distances for σ = 0.057 ☌ and Δ T = ± 0.1 ° C. Sometimes, the adiabatic condition is imposed on an insulated boundary. Thus, it requires a lot of cautions to specify the boundary condition, which is presumed to be known. However, the uncertainty of HTC is unlikely to be assessed since the heat transfer that needs inverse analysis would not take place somewhere like a wind tunnel. Simply by measuring temperature and velocity of free stream, it might be possible to find a suitable correlation and determine the heat transfer coefficient (HTC). For example, consider a surface subject to forced air convection with a developing laminar thermal boundary layer.
However, in reality, there is no such boundary condition (BC) that is accurately known without measurement, even though correlations are employed.
The reason is not because it is unimportant, but because it is simply assumed known in IHCP while defining the problem. However, the matter related to known boundary conditions is one of the least studied parts of IHCP, despite the long history of the related studies.
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