Stagnation - Point Solution
The boundary layer at three-dimensional stagnation points has been the object of many theoretical investigations. Since a review on the literature available is not intended, only a few references are mentioned here [40,53,68]. HOWARTH was one of the first to present results for a general three-dimensional stagnation point. He considers the incompressible flow at a nodal point of attachment. LIBBY  reports a solution for compressible boundary layers with heat and mass transfer which is also capable to handle the flow at saddle points of attachment (for a detailed discussion of nodal and saddle points of attachment see e.g. LIGHTHILL ). Although the above investigations consider the flow at a stagnation point on a general curved surface, second-order boundary-layer effects are not taken into consideration. The recent studies of PAPENFUSS  are concerned with second-order boundary layer effects at (nodal) points of attachment with strong suction or blowing.
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