Bulk Modulus & Compressibility

Inside this lesson

Define bulk modulus E_v and its reciprocal, the compressibility coefficient
Compute the volume or density change of a fluid under a given pressure change
State why liquids are effectively incompressible in ordinary flows
State the Mach-number criterion that separates incompressible from compressible flow

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Interactive simulators for the Moody chart, Bernoulli's equation, hydrostatic forces, and more.

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Educational content covering topics typical of a first- and second-year mechanical engineering curriculum. Not a substitute for accredited coursework, and not suitable for real fluid-system design without review by a licensed professional engineer.