Acknowledgement
Work undertaken by Urban Svensson. Computer-aided Fluid Engineering
Norrkoping, Sweden. For further details see Issue 1 of Render, the
newsletter for IRIS Explorer users.
Background
- Work done for Swedish Nuclear Fuels
and Waste Management Co
- Development of deep repository for
spent nuclear fuel
- Field studies identify rock fractures
- Numerical modelling of fluid flow in
fractured rock
- PHOENICS used as CFD solver
Tunnels in the rock
- Access tunnel excavated down to 450m
- Also elevator shaft & exptl. tunnels
- Tunnel network displayed here
- Textured cylinders read in using
ReadGeom
- Labels added outside IRIS Explorer
Fractures in the rock
- Major fracture zones cross the tunnels
- Determined from field studies
- Displayed here using LatToGeom
- Labels added outside IRIS Explorer
- Expect inflow to occur where fracture
zones cross the tunnel
Flow in the rock
- Conductivity determined from
fracture data
- Plotted on plane using LatToGeom and
GenerateColormap. Blue = high
- Fluid flow calculated at nodes of grid
- Displayed using Vectors
- Observe correlation between
conductivity and flow
Pressure in the rock
- Fluid pressure calculated at grid nodes
- Displayed using IsosurfaceLat
- Observe low pressure region in lower
part of elevator shaft
- Caused by major inflow to elevator
Conclusions
- Visualisations extremely useful
- Well-received by other engineers
- IRIS Explorer does excellent job here
- Would like
- More modules for handling arbitrary
slicing in volumetric datasets
- Reader for PHOENICS output Currently under development at NAG, 1994
Last modified: Mon Aug 5 14:50:22 1996
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© The Numerical Algorithms Group Ltd, Oxford UK, 1996.