ERCOFTAC Workshop on Data Bases and Testing of Calculation Methods for Turbulent Flows

ERCOFTAC Workshop on Data Bases and Testing of Calculation Methods for Turbulent Flows

Rodi, W.
Bonnin, J.C.
Buchal, T.

TU Delft

1995-07-01

This document contains the calculation results for 5 test cases and the description of calculation methods submitted to the ERCOFTAC Workshop on Data Bases and Testing of Calculation Methods for Turbulent Flows held in Karlsruhe from April 3 to 7, 1995. The workshop was an outcome and marked the end of the research project "Data Validation and Comparison in Fluid Mechanics" financed by the CEC programme SCIENCE, in which 7 ERCOFTAC members participated to called experimental and numrical data on turbulent flows, to check their reliability and suitability fortest cases, to set up test cases and perform calculations with various turbulence models, and finally to create a data bank from which the data can be accessed. This project, which was restricted to incompressible single-phase flows without chemical reactions, has yielded data for about 70 flows, and 10 well documented test cases have been set up from which 5 were chosen for the present workshop. The workshop follows three previous ERCOF,TAC/IAHR Workshops on Refined Flow Modelling which have succeeded 14 IAHR workshops that were organised by the IAHR Working Group on Refined Flow Modelling in the years 1980 - 1991. Hence it is considered to be the 4th workshop in this series. The flows have been selected to range from relatively simple ones (Couette flow) to fairly complex 3D flows, to cover a number of different physical processes, and to be of practical relevance. Deliberately, only isothermal flows have been included; flows with heat transfer and buoyancy effects will be dealt with at future workshops. Initially 101 groups intended to submit results to the workshop; in the end 36 groups managed to meet the deadline, submitting altogether 129 solutions for the 5 test cases. At the workshop, some inconsistencies and errors were detected and some information on the turbulence models, wall functions and inflow conditions used was missing. The contributors were asked to resupply corrected results and additional information. This document is a revised version of the original proceedings and contains the corrected results. A paper giving an interpretation of the results is in preparation. The processing of the submitted data and the cross plotting required considerable effort. We are grateful to Dr. D. Laurence and his coworkers at EDF, Chatou, for helping us on this task by handling the originally submitted data for test cases 4 and 5.

turbulence
calibration
model tests

TLE400200

http://resolver.tudelft.nl/uuid:3f77b8ad-c562-4df6-9055-1277c75b473b

University of Karsruhe

Part of the Proceedings of the 4th ERCOFTAC/IAHR Workshop on Refined Flow Modelling

Hydraulic Engineering Reports

report

(c) 1995 IAHR