A cambered surface that is moving forward in a fluid generateslift. To explain this interesting fact in terms of simplermodels, some preparatory concepts were discussed in thefirst part of this article. We also agreed on what is an acceptableexplanation. Then some popular models were discussed.Some quantitative theories will be discussed in this concludingpart. Finally we will tie up all these ideas together andconnect them to the rigorous momentum theorem.
Volume 26 | Issue 4