Erratum: A closed-form analytical model for predicting 3D boundary layer displacement thickness for the validation of viscous flow solvers (AIP Adv. (2018) 8 (025315) DOI: 10.1063/1.5020333)

The authors wish to inform readers that in their article, A closed-form analytical model for predicting 3D boundary layer displacement thickness for the validation of viscous flow solvers [AIP Adv. 8, 025315 (2018)], they did not properly reference material taken from a previously published work. A reference should have been included in the original publication. They recognize that this is a serious omission and wish to make the following corrections: In Sec. II, the first few sentences of the paragraph after Eq. (5) should read as follows: Note that in the regions adjacent to the walls of the physical model (herein funnel), boundary layers are formed wherein the dissipative mechanisms of viscosity, thermal conduction, and diffusion are strong. Hence, the entropy increases within these boundary layers. On the other hand, consider the fluid elements outside the boundary layer, where dissipative effects are negligible. Moreover, no heat is being added or taken away from the fluid elements at these points hence, the flow is adiabatic. As a result, the fluid elements outside the boundary layers are experiencing adiabatic and reversible processes namely, isentropic flow.