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  2. Volumetric flow rate - Wikipedia

    en.wikipedia.org/wiki/Volumetric_flow_rate

    v. t. e. In physics and engineering, in particular fluid dynamics, the volumetric flow rate (also known as volume flow rate, or volume velocity) is the volume of fluid which passes per unit time; usually it is represented by the symbol Q (sometimes ). It contrasts with mass flow rate, which is the other main type of fluid flow rate.

  3. Volume (thermodynamics) - Wikipedia

    en.wikipedia.org/wiki/Volume_(thermodynamics)

    The volume of a thermodynamic system typically refers to the volume of the working fluid, such as, for example, the fluid within a piston. Changes to this volume may be made through an application of work, or may be used to produce work. An isochoric process however operates at a constant-volume, thus no work can be produced.

  4. Clausius–Clapeyron relation - Wikipedia

    en.wikipedia.org/wiki/Clausius–Clapeyron_relation

    The Clausius–Clapeyron relation describes a Phase transition in a closed system composed of two contiguous phases, condensed matter and ideal gas, of a single substance, in mutual thermodynamic equilibrium, at constant temperature and pressure. Therefore, [ 7]: 508. Using the appropriate Maxwell relation gives [ 7]: 508 where is the pressure.

  5. Compressibility - Wikipedia

    en.wikipedia.org/wiki/Compressibility

    Category. v. t. e. In thermodynamics and fluid mechanics, the compressibility (also known as the coefficient of compressibility[ 1] or, if the temperature is held constant, the isothermal compressibility[ 2]) is a measure of the instantaneous relative volume change of a fluid or solid as a response to a pressure (or mean stress) change.

  6. Isochoric process - Wikipedia

    en.wikipedia.org/wiki/Isochoric_process

    In thermodynamics, an isochoric process, also called a constant-volume process, an isovolumetric process, or an isometric process, is a thermodynamic process during which the volume of the closed system undergoing such a process remains constant. An isochoric process is exemplified by the heating or the cooling of the contents of a sealed ...

  7. Dilatancy (granular material) - Wikipedia

    en.wikipedia.org/wiki/Dilatancy_(granular_material)

    Dilatancy (granular material) Typical curves of stress -difference as a function of strain in dense sands. In soil mechanics, dilatancy or shear dilatancy[ 1] is the volume change observed in granular materials when they are subjected to shear deformations. [ 2][ 3] This effect was first described scientifically by Osborne Reynolds in 1885/1886 ...

  8. Thermodynamic cycle - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_cycle

    t. e. A thermodynamic cycle consists of linked sequences of thermodynamic processes that involve transfer of heat and work into and out of the system, while varying pressure, temperature, and other state variables within the system, and that eventually returns the system to its initial state. [1] In the process of passing through a cycle, the ...

  9. Pressure–volume diagram - Wikipedia

    en.wikipedia.org/wiki/Pressure–volume_diagram

    A pressure–volume diagram (or PV diagram, or volume–pressure loop) [ 1] is used to describe corresponding changes in volume and pressure in a system. They are commonly used in thermodynamics, cardiovascular physiology, and respiratory physiology . PV diagrams, originally called indicator diagrams, were developed in the 18th century as tools ...

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