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  2. Isentropic process - Wikipedia

    en.wikipedia.org/wiki/Isentropic_process

    For an isentropic flow of a perfect gas, several relations can be derived to define the pressure, density and temperature along a streamline. Note that energy can be exchanged with the flow in an isentropic transformation, as long as it doesn't happen as heat exchange. An example of such an exchange would be an isentropic expansion or ...

  3. Isentropic nozzle flow - Wikipedia

    en.wikipedia.org/wiki/Isentropic_Nozzle_Flow

    Isentropic is the combination of the Greek word "iso" (which means - same) and entropy. When the change in flow variables is small and gradual, isentropic flows occur. The generation of sound waves is an isentropic process. A supersonic flow that is turned while there is an

  4. Astrosociology - Wikipedia

    en.wikipedia.org/wiki/Astrosociology

    Astrosociology, sociology of outer space, or sociology of the universe [1] is the study of the relationship between outer space, extraterrestrial places, and the wider universe and society. It is an interdisciplinary study between space-related sciences and sociology that seeks to understand the impact of human society outside our current ...

  5. Normal shock tables - Wikipedia

    en.wikipedia.org/wiki/Normal_shock_tables

    Note that before and after the shock the isentropic relations are valid and connect static and total quantities. That means, p t o t a l ≠ p s t a t i c + p d y n a m i c {\displaystyle p_{total}\neq p_{static}+p_{dynamic}} (comes from Bernoulli, assumes incompressible flow) because the flow is for Mach numbers greater than unity always ...

  6. Isentropic analysis - Wikipedia

    en.wikipedia.org/wiki/Isentropic_analysis

    Isentropic analysis of the 300 kelvin isotrope and the weather satellite image of clouds during a blizzard in Colorado In meteorology , isentropic analysis is a technique used to find the vertical and horizontal motion of airmasses during an adiabatic (i.e. non-heat-exchanging) process above the planetary boundary layer .

  7. Prandtl–Meyer function - Wikipedia

    en.wikipedia.org/wiki/Prandtl–Meyer_function

    For isentropic compression, ν ( M 2 ) = ν ( M 1 ) − θ {\displaystyle \nu (M_{2})=\nu (M_{1})-\theta \,} where, θ {\displaystyle \theta } is the absolute value of the angle through which the flow turns, M {\displaystyle M} is the flow Mach number and the suffixes "1" and "2" denote the initial and final conditions respectively.

  8. Social entropy - Wikipedia

    en.wikipedia.org/wiki/Social_entropy

    Social entropy is a sociological theory that evaluates social behaviours using a method based on the second law of thermodynamics. [1] The equivalent of entropy in a social system is considered to be wealth or residence location. [2]

  9. Fanno flow - Wikipedia

    en.wikipedia.org/wiki/Fanno_flow

    Point 3 labels the transition from isentropic to Fanno flow. Points 4 and 5 give the pre- and post-shock wave conditions, and point E is the exit from the duct. Figure 4 The H-S diagram is depicted for the conditions of Figure 3. Entropy is constant for isentropic flow, so the conditions at point 1 move down vertically to point 3.