George Keith Batchelor (8 March 1920 – 30 March 2000) was an Australian applied mathematician and fluid dynamicist. He was for many years the Professor of Applied Mathematics in the University of Cambridge, and was founding head of the Department of Applied Mathematics and Theoretical Physics (DAMTP). In 1956 he founded the influential Journal of Fluid Mechanics which he edited for some forty years.

As an applied mathematician (and for some years at Cambridge a co-worker with Sir Geoffrey Taylor in the field of turbulent flow), he was a keen advocate of the need for physical understanding and sound experimental basis.

His An Introduction to Fluid Dynamics (CUP, 1967) is still considered a classic of the subject, and has been re-issued in the Cambridge Mathematical Library series, following strong current demand[1]. Unusual for an 'elementary' textbook of that era, it presented a treatment in which the properties of a real viscous fluid were fully emphasised.

本書介紹瞭真實流體物理學的基礎理論，使學生能瞭解從過去半個多世紀研究中獲得的常見的流係統和流現象。本書的重點在於流體動力學的物理規律和普遍性，此外還特彆關注流係統的各種概念模型和分析模型與觀察資料之間的關聯。

本書適閤作為應用數學和工程專業本科生及研究生的教材。本書被多所著名大學采用為教材，如英國劍橋大學、美國加州大學洛杉磯分校等。