J.A. Nicholls

James Arthur Nicholls (February 12, 1921 – October 9, 2018) was an American aerospace engineer and professor at the University of Michigan known for his work in detonation physics, rocket engine combustion instability, and rotating detonation engines. He was the first researcher to experimentally create a standing detonation wave, laying the foundation for subsequent research in pulse detonation and rotating detonation propulsion. He served as a faculty member in the university's Department of Aerospace Engineering for over 27 years and led the Gas Dynamics Laboratory from 1966 to 1985.

Early life and education Nicholls was born on February 12, 1921. During World War II, he served as a combat pilot in the United States Navy, flying multi-engine aircraft in the North Pacific theater. Following his military service, he pursued graduate studies in aeronautical engineering at the University of Michigan, earning a Master of Science degree in 1951 and a Ph.D. in 1960.

Nicholls received the Stephen S. Attwood Excellence in Engineering Award, awarded by the University of Michigan College of Engineering, recognizing his achievements in teaching, research, and service. He retired with the title of Emeritus Professor.