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  2. Thermal pressure - Wikipedia

    en.wikipedia.org/wiki/Thermal_Pressure

    Figure 1: Thermal pressure as a function of temperature normalized to A of the few compounds commonly used in the study of Geophysics. [3]The thermal pressure coefficient can be considered as a fundamental property; it is closely related to various properties such as internal pressure, sonic velocity, the entropy of melting, isothermal compressibility, isobaric expansibility, phase transition ...

  3. Non-equilibrium thermodynamics - Wikipedia

    en.wikipedia.org/wiki/Non-equilibrium_thermodynamics

    The suitable relationship that defines non-equilibrium thermodynamic state variables is as follows. When the system is in local equilibrium, non-equilibrium state variables are such that they can be measured locally with sufficient accuracy by the same techniques as are used to measure thermodynamic state variables, or by corresponding time and space derivatives, including fluxes of matter and ...

  4. Hot isostatic pressing - Wikipedia

    en.wikipedia.org/wiki/Hot_isostatic_pressing

    The HIP process subjects a component to both elevated temperature and isostatic gas pressure within a high-pressure containment vessel, unlike the cold isostatic pressing (CIP), where the component is maintained at room temperature. [1] The pressurizing gas most widely used is argon. An inert gas is used so that the material does not chemically ...

  5. Orders of magnitude (pressure) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(pressure)

    Pressure used in boilers of steam locomotives [citation needed] 1.1 MPa 162 psi Pressure of an average human bite [citation needed] 2.8–8.3 MPa 400–1,200 psi Pressure of carbon dioxide propellant in a paintball gun [64] 5 MPa 700 psi Water pressure of the output of a coin-operated car wash spray nozzle [58] 5 MPa 700 psi

  6. Non-dimensionalization and scaling of the Navier–Stokes ...

    en.wikipedia.org/wiki/Non-dimensionalization_and...

    For the case of flow without heat transfer, the non-dimensionalized Navier–Stokes equation depends only on the Reynolds Number and hence all physical realizations of the related experiment will have the same value of non-dimensionalized variables for the same Reynolds Number. [3]

  7. Rayleigh number - Wikipedia

    en.wikipedia.org/wiki/Rayleigh_number

    The Rayleigh number describes the behaviour of fluids (such as water or air) when the mass density of the fluid is non-uniform. The mass density differences are usually caused by temperature differences. Typically a fluid expands and becomes less dense as it is heated. Gravity causes denser parts of the fluid to sink, which is called convection.

  8. Timeline of temperature and pressure measurement technology

    en.wikipedia.org/wiki/Timeline_of_temperature...

    1669 — Honoré Fabri suggested using a temperature scale by dividing into 8 equal parts the interval between "greatest heat of summer" and melting snow. [ 3 ] 1676 to 1679 — Edme Mariotte conducted experiments that under the French Academy of Science ’s Paris Observatory , resulting in wide adoption of temperatures of deep cellars as a ...

  9. Baroclinity - Wikipedia

    en.wikipedia.org/wiki/Baroclinity

    In fluid dynamics, the baroclinity (often called baroclinicity) of a stratified fluid is a measure of how misaligned the gradient of pressure is from the gradient of density in a fluid. [ 1 ] [ 2 ] In meteorology a baroclinic flow is one in which the density depends on both temperature and pressure (the fully general case).