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  2. Root mean square - Wikipedia

    en.wikipedia.org/wiki/Root_mean_square

    RMS, RMS or rms) of a set of numbers is the square root of the set's mean square. [1] Given a set , its RMS is denoted as either or . The RMS is also known as the quadratic mean (denoted ), [2] [3] a special case of the generalized mean.

  3. Turbulence kinetic energy - Wikipedia

    en.wikipedia.org/wiki/Turbulence_kinetic_energy

    Physically, the turbulence kinetic energy is characterized by measured root-mean-square (RMS) velocity fluctuations. In the Reynolds-averaged Navier Stokes equations, the turbulence kinetic energy can be calculated based on the closure method, i.e. a turbulence model.

  4. Semblance analysis - Wikipedia

    en.wikipedia.org/wiki/Semblance_analysis

    This path represents the shortest amount of time that can be taken to reach a layer and return. With this information it becomes fairly easy to calculate the velocity of the waves as they travel through each layer by using the equation for the root mean square velocity starting with the top layer and working downward.

  5. Root mean square deviation - Wikipedia

    en.wikipedia.org/wiki/Root_mean_square_deviation

    In fluid dynamics, normalized root mean square deviation (NRMSD), coefficient of variation (CV), and percent RMS are used to quantify the uniformity of flow behavior such as velocity profile, temperature distribution, or gas species concentration. The value is compared to industry standards to optimize the design of flow and thermal equipment ...

  6. Reynolds stress - Wikipedia

    en.wikipedia.org/wiki/Reynolds_Stress

    The velocity field of a flow can be split into a mean part and a fluctuating part using Reynolds decomposition.We write = ¯ + ′, with (,) being the flow velocity vector having components in the coordinate direction (with denoting the components of the coordinate vector ).

  7. Particle velocity - Wikipedia

    en.wikipedia.org/wiki/Particle_velocity

    Particle velocity (denoted v or SVL) is the velocity of a particle (real or imagined) in a medium as it transmits a wave. The SI unit of particle velocity is the metre per second (m/s). In many cases this is a longitudinal wave of pressure as with sound , but it can also be a transverse wave as with the vibration of a taut string.

  8. Luke Grimes says it's hard work to remain a Hollywood heartthrob — but that's not why he's committed to the gym.. The Yellowstone actor, 40, revealed to Men’s Health that he’s figuring out ...

  9. Mean squared displacement - Wikipedia

    en.wikipedia.org/wiki/Mean_squared_displacement

    The bar in the argument of the instantaneous probability refers to the conditional probability. The diffusion equation states that the speed at which the probability for finding the particle at () is position dependent. The differential equation above takes the form of 1D heat equation.