TY - GEN

T1 - Direct numerical simulation of turbulent flow in a square pipe

AU - Hayase, Toshiyuki

AU - Suematsu, Yoshikazu

PY - 1991/12/1

Y1 - 1991/12/1

N2 - A turbulent flow in a square pipe is investigated through a direct calculation of the discretized Navier-Stokes equations based on the control volume method. The direct numerical calculation approach is essentially free from any turbulence model. However, it generally requires a huge computational time and memory size, and is possibly performed on a relatively coarse grid system. Therefore, evaluation of the solution for the coarse grid system is important in practical applications. The computational results in this study are compared with the other experiment and the large eddy simulation (LES) results. It has revealed that the present calculation predicts the characteristic feature of the turbulent flow even with the coarse grid system, and quantitative improvement of the solution is achieved nearly in proportion to the grid resolution squared.

AB - A turbulent flow in a square pipe is investigated through a direct calculation of the discretized Navier-Stokes equations based on the control volume method. The direct numerical calculation approach is essentially free from any turbulence model. However, it generally requires a huge computational time and memory size, and is possibly performed on a relatively coarse grid system. Therefore, evaluation of the solution for the coarse grid system is important in practical applications. The computational results in this study are compared with the other experiment and the large eddy simulation (LES) results. It has revealed that the present calculation predicts the characteristic feature of the turbulent flow even with the coarse grid system, and quantitative improvement of the solution is achieved nearly in proportion to the grid resolution squared.

UR - http://www.scopus.com/inward/record.url?scp=0026387784&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026387784&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0026387784

SN - 0791806529

T3 - Flucome '91

SP - 99

EP - 106

BT - Flucome '91

PB - Publ by ASME

T2 - 3rd Triennial International Symposium on Fluid Control, Measurement, and Visualization - FLUCOME '91

Y2 - 28 August 1991 through 31 August 1991

ER -