After this he was appointed Research Instructor at Brown University where, as part of work relevant to the war effort, he studied two-dimensional subsonic fluid flow.
Pagkatapos na ito siya ay hihirangin Research magtuturo sa Brown University kung saan, bilang bahagi ng mga gawain na may kaugnayan sa digma pagsisikap, siya aral ng dalawang-dimensional subsonik likido daloy.