Thermal simulation is a powerful tool that we use for several applications in our work. The result gives us a better way of understanding complicated coupled processes in hydraulic and thermal applications. Common simulations are:
- Evaluation of measured data (flow, pressure, temperature).
- Data response at defect development (at PFMA studies).
- Optimization of monitoring systems.
- Detection of leakage from pipelines.
Simulations are made using the multi-physics software COMSOL™. Of special interest is to study the temperature change due to a seepage increase, especially at internal erosion which is one of the major reasons for embankment dam failures. By modelling we can demonstrate the usefulness of temperature monitoring for seepage detection.
Thermohydraulic 3-D model used for monitoring system design (temperature and pressure)
Example of internal erosion development through a moraine core.
Temperature measurement along embankment dams are often made in the downstream part of the dam, normally just upstream the drainage system. If a concentrated outflow though the core should appear, it will be detected by a local temperature change also in the dam toe, as shown in the figure.
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