Technical Report

TR-99-04

ISSN 1404-0344CM Gruppen AB, Bromma, 1999

Evaluation of modelling of the TRUE-1 radially converging and dipole tests with conservative tracers

The Äspö Task Force on Modelling of Groundwater Flow and Transport of Solutes

Tasks 4C and 4D

Mark Elert

Kemakta Konsult AB

May 1999

Evalu

ation

of m

od

elling

of th

e TRU

E-1 rad

ially con

vergin

g an

d d

ipo

le tests with

con

servative tracersTR

-99-04

Svensk Kärnbränslehantering ABSwedish Nuclear Fueland Waste Management CoBox 5864SE-102 40 Stockholm Sweden Tel 08-459 84 00 +46 8 459 84 00Fax 08-661 57 19 +46 8 661 57 19

Technical Report

TR-99-04

ISSN 1404-0344CM Gruppen AB, Bromma, 1999

Evaluation of modelling of the TRUE-1 radially converging and dipole tests with conservative tracers

The Äspö Task Force on Modelling of Groundwater Flow and Transport of Solutes

Tasks 4C and 4D

Mark Elert

Kemakta Konsult AB

May 1999

Evalu

ation

of m

od

elling

of th

e TRU

E-1 rad

ially con

vergin

g an

d d

ipo

le tests with

con

servative tracersTR

-99-04

Svensk Kärnbränslehantering ABSwedish Nuclear Fueland Waste Management CoBox 5864SE-102 40 Stockholm Sweden Tel 08-459 84 00 +46 8 459 84 00Fax 08-661 57 19 +46 8 661 57 19

AbstractExecutive SummaryContentsList of FiguresList of Tables1 Introduction2 Purpose and set up of experiments2.1 Description of settings2.2 Radially converging tracer tests (Task 4C)2.2.1 Obectives2.2.2 Definition and set up2.2.3 Data base

2.3 Dipole tracer tests (Task 4D)2.3.1 Objectives2.3.2 Definition and set up2.3.3 Data base

3 Modelling approaches3.1 General approaches for modelling of groundwater flow and transport in fractured rock3.2 Approaches applied by the modelling teams3.2.1 Introduction3.2.2 CRIEPI3.2.3 PNC/Golder3.2.4 SKB/KTH-ChE3.2.5 Posiva/VTT3.2.6 BMB/BGR3.2.7 SKB/KTH-TRUE3.2.8 ANDRA/CEA-DMT3.2.9 AEA Technology

4 Results4.1 Modelling results4.2 Experimental result4.2.1 Radially converging tracer test (RC-1)4.2.2 Dipole tracer tests (DP 1 - DP 4)

4.3 Comparison of results4.3.1 Performance measures4.3.2 Radially converging test4.3.3 Dipole tests

5 Discussin5.1 Model geometry and structural model5.2 Modelling of processes5.3 Material properties5.4 Boundary conditions5.5 Model calibration and conditioning5.6 Sensitivity analysis5.7 Lessons learned - Unresolved issues

6 Conclusions6.1 Tasks 4C and 4D as a testing exercise6.2 Modelling and data6.3 Perspective to future tasks

7 AcknowledgementsReferencesAppendix 1 Data distributedAppendix 2 Executive summaryAppendix 3 Questionnair