In fluid dynamics the boussinesq approximation pronounced named for joseph valentin boussinesq is used in the field of buoyancy driven flow also known as natural convection it ignores density differences except where they appear in terms multiplied by g the acceleration due to gravity. Buoyancy driven flows a gravity current is a primarily horizontal flow in a gravitational field that is driven by a density difference gravity currents occur across all scales in environmental fluid dynamics eg sandstorms sea breeze avalanches lava flows estuaries deep ocean atmosphere . 10 buoyancy driven flow for such flows to occur need gravity field variation of density note not the same as variable density simplest case viscous flow incompressible fluid density variation effects only present in body force term archimedes c 287 bce c 212 bce. The buoyancy driven cavity is a classic natural convection case for testing incompressible flow solvers with heat transfer effects the geometry consists of a square cavity in 2d with opposing hot and cold vertical walls and insulated horizontal walls a gravity force is added in the negative y direction
How it works:
1. Sign Up for free now.
2. Download as many books as you like.
3. No Commitment! You can cancel anytime.
4. Join with over 1.000.000 readers.
5. That's it. What are you waiting for? Sign Up and Get Your Books.