Momentum and Forces

  • Constantine Pozrikidis


In the second chapter, we introduce the concepts of force, traction, and stress developing in a fluid consisting of a single chemical species. By invoking Newton’s second law of motion for a material fluid parcel, we derive the Cauchy equation of motion for a compressible or incompressible fluid. By combining the equation of motion with the Reynolds transport equation, we derive a momentum balance and associated equation of momentum transport over a control volume in a way that is rigorous, intuitive, and free of ad-hoc stipulations.

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Constantine Pozrikidis
    • 1
  1. 1.College of EngineeringUniversity of Massachusetts AmherstAmherstUSA

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