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Erschienen in:
01.12.2020 | Correction
Correction to: Experimental characterization of the hypersonic flow around a cuboid
Erschienen in: Experiments in Fluids | Ausgabe 12/2020
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Excerpt
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There is a typographical error in Equation 13, which should instead read:$$\begin{aligned} \left\{ \begin{array}{l} \frac{1}{\rho c_p(T)}\frac{\partial \lambda }{\partial t} = - \nabla \left( k(T) \nabla \lambda \right) , \ \forall \ \mathbf {x} \in \Omega \\ \lambda (\mathbf{x} ,t)=0, \ \forall \ \mathbf {x} \in \Omega , \ t=t_f \\ k(T)\frac{\partial \lambda }{\partial n} = 2 \left( T - Y \right) , \ \forall \ \mathbf {x} \in S, 0<t<t_{f} \end{array} \right. \end{aligned}$$
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The values in Table 4 should be updated to contain the values in the table below. The values in the published version of the table are incorrect, caused by a bug in the averaging procedure in the error processing software. This bug does not affect the results presented in Figure 6 nor does it affect the global error of 12% presented in the text of the document.
|
Error source
|
Variation \(\Delta \)
|
\(\Delta C_{H_{\%}}\)
|
|---|---|---|
|
IHCP solution
|
–
|
1.5%
|
|
Ambient temperature measurement \(T_{amb} \ \mathrm {[K]}\)
|
1.7%
|
1.5%
|
|
Infrared Calibration \(T_{IR} \ \mathrm {[K]}\)
|
\(\sigma = 0.1\) K
|
1.5%
|
|
Model initial temperature distribution \(T_{i} \ \mathrm {[K]}\)
|
2.7%
|
1.5%
|
|
Material emissivity \(\epsilon \)
|
8.0%
|
8.7%
|
|
Material thermal conductivity \(k \ \mathrm {[J/kg.K]}\)
|
6.0%
|
1.5%
|
|
Material specific heat capacity \(c_p \ \mathrm {[J/kg.K]} \)
|
2.0%
|
1.5%
|
|
Free-stream total temperature \(T_{0} \ \mathrm {[K]}\)
|
2.5%
|
6.9%
|
|
Free-stream total pressure \(P_0 \ \mathrm {[Pa]}\)
|
4.2%
|
4.2%
|