摘要
When asked to read a paper on the Thermodynamics of Aero Engines I felt very doubtful in the first place whether I ought to attempt such a subject at all, for, though I have posed often as a mechanic, I have not posed before as ascientist, at least not in public. In the second place I felt doubtful, if I attempted anything so rash, how to deal with the subject. Clearly I must adopt one or other of two lines, either play for safety and stick firmly to the fundamental thermo-dynamic laws which are unassailable but also inapplicable to practical working conditions, or take the plunge and endeavour to argue or at least to speculate as to how these fundamental laws must be qualified to meet actual working conditions. In adopting the latter course I realise that I must touch upon many highly controversial questions, and if in places I appear to lay down the law on what at best is little more than mere conjecture, I must ask you to forgive me and to realise from the start that the last thing I intend is to appear didactic.
摘要译文
当被问到阅读有关航空发动机热力学的论文时，我一开始就非常怀疑我是否应该尝试这样的课题，因为尽管我经常以机械师的身份冒充，但我没有像科学家那样冒充过，至少不在公开场合。其次，我感到怀疑，如果我尝试任何轻率的事情，如何处理这个问题。显然，我必须采用两条路线中的一条或两条，要么是为了安全起见，要么坚定地遵循基本的热力学定律，这些定律是无懈可击的，但不适用于实际的工作条件；或者，我要大胆尝试并争辩或至少推测为这些基本法律如何才能符合实际工作条件。在采用后者的过程中，我意识到我必须解决许多极具争议的问题，如果我在某些地方似乎对法律充其量只不过是mere测而已，我必须请你原谅我并从中实现我打算做的最后一件事就是出现教学法。
H. E. Wimperis. The Thermo-Dynamics of Aircraft Engines[J]. AERONAUTICAL JOURNAL, 1924,28(158): 49-87