On the calculation of turbulent heat and mass transport downstream from an abrupt pipe expansionA numerical study is reported of heat/mass transfer in the separated flow region created by an abrupt pipe expansion. Computations have employed a hybrid method of central and upwind finite differencing to solve the full Navier-Stokes equations with turbulent model (k approximately equal to epsilon). The study has given its main attention to the simulation of the region in the immediate vicinity of the wall, by formulating near-wall model for the evaluation of the mean generation and destruction rate of the epsilon equation. The computed results were compared with the experimental data and they showed generally encouraging agreement with the measurements.
Document ID
19820051560
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Amano, R. S. (Wisconsin, University Milwaukee, WI, United States)