The concentration field in a turbulent channel flow with polymer injection at the wall

Autor: W. G. Tiederman, D. T. Walker
Rok vydání: 1989
Předmět:
Zdroj: Experiments in Fluids. 8:86-94
ISSN: 1432-1114
0723-4864
DOI: 10.1007/bf00203069
Popis: Instantaneous concentration profiles have been measured in turbulent water channel flows at 5 axial locations immediately downstream of a line, wall injection of a dyed 700 ppm polymer solution and for comparison, dyed water. Concentration was deduced from a line of fluoresced radiation that was stimulated by a laser beam directed through the dyed injectant and normal to the channel wall. Both statistical and time-resolved results show how the turbulent mixing is modified and damped when the injectant is a polymer solution.
Databáze: OpenAIRE