Byron C. Sakiadis

Byron Christos Sakiadis (December 25, 1928 – February 21, 2021) was an American chemical engineer known for his pioneering work in boundary-layer theory. His 1961 papers in the AIChE Journal introduced what are now known as Sakiadis flows, a class of boundary-layer phenomena important in coating, extrusion, and continuous-surface processing. and received the Allan P. Colburn Award from AIChE in 1965. where he defended a dissertation on the thermal conductivity of liquids .

Career DuPont (1950s–1993) After earning his Ph.D., Sakiadis joined DuPont as a research fellow. and he contributed to major reference works within the field of chemical engineering .

He retired from DuPont in 1993. This configuration—opposite of the classical Blasius problem—revealed a distinct boundary-layer development and gave rise to the class of flows called Sakiadis boundary layers.

Influence The moving-surface boundary-layer solution introduced by Sakiadis later became the basis for the stretching-sheet flow developed by Crane

Sakiadis’ original moving-surface boundary-layer solution continues to underpin modern mathematical studies of heat and mass transfer in stretching surfaces, with contemporary analyses explicitly building on his 1961 formulation

Awards and honors 1965 – Allan P. Colburn Award for significant contributions to chemical engineering before age 35.

Personal life Sakiadis was married to Alice Sakiadis for 69 years, and they had three children—Lana, Glenn (deceased), and Paulina—along with six grandchildren and four great-grandchildren.

He died at home in Chadds Ford, Pennsylvania, on February 21, 2021, at age 92.

Selected publications