Modifies a noun

• fluid: One period of a medium contains a layer of an elastic solid and a layer of an inviscid fluid.

• flow: Boundary layers generally interact with the external inviscid flow field in which they are embedded.

• airflow: The information is presented in graphical form, and was obtained from correlations of experimental data and theoretical calculations for inviscid airflow.

• region: Indeed, following the Prandtl hierarchical strategy, one has to consider the external inviscid flow region first and then the boundary layer.

• theory: The boundary layer thicknesses at the trailing edge increase the zero-lift incidence above that predicted by inviscid theory.