TY - GEN
T1 - The reynolds stress in channel flows from a lagrangian treatment of the turbulence momentum
AU - Lee, T. W.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - We have developed a mechanistic approach for determination of the Reynolds stress, using a Lagrangian analysis of turbulent momentum. Analysis and comparison with DNS and experimental data point toward the soundness of this approach (Lee, 2018). von Karman constant, the inner layer thickness and the Reynolds stress itself are all recovered through this approach, in agreement with DNS data. In addition, the turbulent flow profiles can be calculated iteratively using the basic Reynolds-averaged Navier-Stokes equation, in conjunction with the current transport equation for the Reynolds stress. In this work, we explore these and further uses of the current approach in solving turbulent flow dynamics.
AB - We have developed a mechanistic approach for determination of the Reynolds stress, using a Lagrangian analysis of turbulent momentum. Analysis and comparison with DNS and experimental data point toward the soundness of this approach (Lee, 2018). von Karman constant, the inner layer thickness and the Reynolds stress itself are all recovered through this approach, in agreement with DNS data. In addition, the turbulent flow profiles can be calculated iteratively using the basic Reynolds-averaged Navier-Stokes equation, in conjunction with the current transport equation for the Reynolds stress. In this work, we explore these and further uses of the current approach in solving turbulent flow dynamics.
UR - http://www.scopus.com/inward/record.url?scp=85068932337&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85068932337&partnerID=8YFLogxK
U2 - 10.1115/AJKFLUIDS2019-5031
DO - 10.1115/AJKFLUIDS2019-5031
M3 - Conference contribution
AN - SCOPUS:85068932337
T3 - ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019
BT - Fluid Mechanics
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019
Y2 - 28 July 2019 through 1 August 2019
ER -