534
A. del Val et al.
Fig. 16.13 Concept of the local heat transfer simulation (Credit: P. Solano)
One can notice that four parameters are needed in order to compute the wall
heat flux according to the generalized expression depicted before (Eq. 16.32). The
wall enthalpy, h w , has a second order effect on the heat flux and should only be
taken into account in the form of wall temperature if catalytic effects are unknown.
According to [9], this parameter is a function of the rest of the parameters when
catalysis effects are known (γ is characterized). On top of all that, it is widely
accepted that H e >> h w as an argument to not consider this fourth parameter in
the flight extrapolation problem.
16.4.2 Flight Extrapolation Uncertainties
The physico-chemical models used to describe different phenomena involved
in atmospheric entry flows: radiation, flowfield, electromagnetic field, and gassurface interactions among others, must undergo a validation campaign against
experimental data. Due to the nature of this problem, experimental data can be
gathered separately for each phenomena depending on the facility dedicated to the
A. del Val et al.
Fig. 16.13 Concept of the local heat transfer simulation (Credit: P. Solano)
One can notice that four parameters are needed in order to compute the wall
heat flux according to the generalized expression depicted before (Eq. 16.32). The
wall enthalpy, h w , has a second order effect on the heat flux and should only be
taken into account in the form of wall temperature if catalytic effects are unknown.
According to [9], this parameter is a function of the rest of the parameters when
catalysis effects are known (γ is characterized). On top of all that, it is widely
accepted that H e >> h w as an argument to not consider this fourth parameter in
the flight extrapolation problem.
16.4.2 Flight Extrapolation Uncertainties
The physico-chemical models used to describe different phenomena involved
in atmospheric entry flows: radiation, flowfield, electromagnetic field, and gassurface interactions among others, must undergo a validation campaign against
experimental data. Due to the nature of this problem, experimental data can be
gathered separately for each phenomena depending on the facility dedicated to the