Boussinesq approximation
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Boussinesq approximation may refer to:
- Boussinesq approximation (buoyancy) for buoyancy-driven flows for small density differences in the fluid
- Boussinesq approximation (water waves) for long waves propagating on the surface of a fluid layer under the action of gravity
- Turbulence modeling and eddy viscosity for the Boussinesq approximation resulting in the use of an eddy viscosity to model the turbulence Reynolds stresses