Abstract
The open boundary conditions for the computational fluid dynamics simulation of the micro- and meso-scale flow over the Grimming mountain, Austria, are determined by an optimization approach. The Numerical Weather Prediction (NWP) model ALADINAustria provides data of wind speed and wind direction at virtual weather balloons within the area of interest. Moreover, the numerical model includes buoyancy, thermal stratification, adiabatic heating and turbulence effects. Furthermore, it is applied to the flow over the Grimming mountain and the results are validated by station data and show suitable correlation with the measurements. In addition, the wavelength of lee gravity waves is in good agreement with analytic approximations and gives an additional validation of the presented model. Finally, the presented model is able to serve as framework for particle transport simulations as snow drift.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the International Snow Science Workshop |
| Pages | 146150 |
| Number of pages | 5 |
| Publication status | Published - Oct 2009 |
Fields of science
- 103032 Fluid mechanics
- 203 Mechanical Engineering
- 203016 Measurement engineering
- 203024 Thermodynamics
- 211104 Metallurgy
- 204006 Mechanical process engineering
- 204007 Thermal process engineering
- 103043 Computational physics
- 102009 Computer simulation
- 103001 Aerodynamics
- 203021 Fluid-flow machinery
- 207111 Environmental engineering
- 203038 Ventilation technology