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  2. Submerged specific gravity - Wikipedia

    en.wikipedia.org/wiki/Submerged_specific_gravity

    Submerged specific gravity is a dimensionless measure of an object's buoyancy when immersed in a fluid.It can be expressed in terms of the equation = where stands for "submerged specific gravity", is the density of the object, and is the density of the fluid.

  3. Relative density - Wikipedia

    en.wikipedia.org/wiki/Relative_density

    A United States Navy Aviation boatswain's mate tests the specific gravity of JP-5 fuel. Relative density, also called specific gravity, [1] [2] is a dimensionless quantity defined as the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material.

  4. Archimedes number - Wikipedia

    en.wikipedia.org/wiki/Archimedes_number

    The Archimedes number is applied often in the engineering of packed beds, which are very common in the chemical processing industry. [3] A packed bed reactor, which is similar to the ideal plug flow reactor model, involves packing a tubular reactor with a solid catalyst, then passing incompressible or compressible fluids through the solid bed. [3]

  5. On Floating Bodies - Wikipedia

    en.wikipedia.org/wiki/On_Floating_Bodies

    The purpose of On Floating Bodies I-II was to determine the positions that various solids will assume when floating in a fluid, according to their form and the variation in their specific gravities. The work is known for containing the first statement of what is now known as Archimedes' principle .

  6. Hydrostatic weighing - Wikipedia

    en.wikipedia.org/wiki/Hydrostatic_weighing

    The procedure, pioneered by Behnke, Feen and Welham as means to later quantify the relation between specific gravity and the fat content, [1] is based on Archimedes' principle, which states that: The buoyant force which water exerts on an immersed object is equal to the weight of water that the object displaces.

  7. Sediment transport - Wikipedia

    en.wikipedia.org/wiki/Sediment_transport

    where R is the submerged specific gravity of the sediment. The second assumption is that the particle Reynolds number is high. This typically applies to particles of gravel-size or larger in a stream, and means the critical shear stress is constant.

  8. Specific weight - Wikipedia

    en.wikipedia.org/wiki/Specific_weight

    The specific weight, also known as the unit weight (symbol γ, the Greek letter gamma), is a volume-specific quantity defined as the weight W divided by the volume V of a material: = / Equivalently, it may also be formulated as the product of density, ρ, and gravity acceleration, g: = Its unit of measurement in the International System of Units (SI) is newton per cubic metre (N/m 3), with ...

  9. Soil mechanics - Wikipedia

    en.wikipedia.org/wiki/Soil_mechanics

    Specific gravity of solids, = Note that specific weight , conventionally denoted by the symbol γ {\displaystyle \gamma } may be obtained by multiplying the density ( ρ {\displaystyle \rho } ) of a material by the acceleration due to gravity, g {\displaystyle g} .