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In fluid mechanics, the force density is the negative gradient of pressure. It has the physical dimensions of force per unit volume. Force density is a vector field representing the flux density of the hydrostatic force within the bulk of a fluid. Force density is represented by the symbol f, and given by the following equation, where p is the pressure:
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force density fluid boundary volume field conditions pressure unit per given net stick-slip stick sphere non-stationary flow incompressible gradient displaystyle
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Force density | Common symbols | f {\displaystyle \mathbf {f} } | 1.00 | infobox |
| Force density | Dimension | L − 2 M T − 2 {\displaystyle {\mathsf {L}}^{-2}{\mathsf {M}}{\mathsf {T}}^{-2}} | 1.00 | infobox |
| Force density | In SI base units | kg·m−2·s−2 | 1.00 | infobox |
| Force density | SI unit | N·m−3 | 1.00 | infobox |
| Force density | is a | negative gradient of pressure | 0.90 | text |
| Force density | is a | vector field representing the flux density of the hydrostatic force within the bulk of a fluid | 0.90 | text |
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