Abstract
The state of knowledge regarding the pressure that develops and the pressure distribution that exists between an impinging liquid drop and a planar solid as a consequence of impact is reviewed. Experimental evidence is cited which indicates that radial jetting flow of drop liquid occurs at a later time than that indicated by theoretical treatments. The criterion for termination of the no‐flow regime is developed analytically, and the regime that sets in after this criterion is realized is explored phenomenologically.

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