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Flow in a Lid Driven Cavity at low Reynolds number

Computational details
Short description and remarks

Short description and remarks

The Lid Driven Cavity is a model for flow in a cavity where the upper boundary moves to the right, and thus causes a rotation in the cavity. The flow at the chosen small Reynolds number, starting from rest, tends to some steady behaviour, although the patterns during this process are quite complex.

This simulation is one of the oldest in the 'Virtual Album', and it is a student version!


  • Distribution of temperature/concentration via Boussinesq model

    Presented are two visualizations of the distribution of temperature if the walls are heated to a constant temperature and the flow field transports this temperature. Since the fluid is incompressible, this model is equivalent to giving a certain (constant) concentration of a substance into the flow and watch the spreading. Left is shown a visualization which emphasises on the higher concentration (3.6 MB), while the right one shows better the fine details in the interior (5.6 MB).

  • Pressure

    Visualization via pressure plots, shaded (first, 3.3 MB) and via isolines (second, 16 MB). Since there is a singularity at the upper right (pressure tends to infinity) and the upper left corner (pressure tends to minus infinity), those areas are painted in black. Please note that the interior of the isoline movie ("black hole") does in fact contain isolines, but that we have cut out this area in order to emphasize on the outer regions.

  • Streamfunction

    Visualization via streamline plots, shaded (first, 2.7 MB) and via isolines (second, 4.7 MB). For the black region in the interior of the isolines movie the same applies as for the pressure plots.

  • Velocity

    Visualization via vector plots (vectors, 12.4 MB). Please note that the local velocity is only indicated by the use of colour, not by the length of the vectors.

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