• Chung FangEmail author
Part of the Springer Textbooks in Earth Sciences, Geography and Environment book series (STEGE)


The knowledge about the characteristics of fluids at rest is referred to as fluid statics, or alternatively as hydrostatics, which is derived from the fact that the disciplines are used frequently for water at rest. The pressure of a still fluid in the gravitational field experiences a spatial variation, and the pressure distribution over the surface of a solid body with finite volume results in a net force acting on the body. This net force is termed differently as the hydrostatic or buoyant force in different circumstances, which are discussed in separate sections of this chapter. Specifically, the pressure distribution in a still fluid is discussed, followed by the estimations on the hydrostatic forces on a plane and a curved surface. Formation of the free surface of a still fluid with relations to the surface tension and capillary effect is presented. Buoyancy and stability analysis of a floating and submerged bodies in a still fluid are introduced by using the relative positions between the centers of gravity and buoyancy. Last, due to the same Cauchy stress state as that of a still fluid, the pressure variation of a fluid in rigid body motion is discussed.

Further Reading

  1. Y.A. Cengel, J.M. Cimbala, Fluid Mechanics: Fundamentals and Applications, 3rd edn. (McGraw-Hill, New York, 2014)Google Scholar
  2. S. Chandrasekhar, Hydrodynamic and Hydromagnetic Stability (Dover, New York, 1961)zbMATHGoogle Scholar
  3. D.F. Elger, B.C. Williams, C.T. Crowe, J.A. Roberson, Engineering Fluid Mechanics, 10th edn. (Wiley, Singapore, 2014)Google Scholar
  4. R.W. Fox, P.J. Pritchard, A.T. McDonald, Introduction to Fluid Mechanics, 7th edn. (Wiley, New York, 2009)zbMATHGoogle Scholar
  5. B.R. Munson, D.F. Young, T.H. Okiishi, Fundamentals of Fluid Mechanics, 3rd edn. (Wiley, New York, 1990)zbMATHGoogle Scholar
  6. P. Oswald, Rheophysics: The Deformation and Flow of Matter (Cambridge University Press, Cambridge, 2009)Google Scholar
  7. R.H.F. Pao, Fluid Mechanics (Wiley, New York, 1961)Google Scholar
  8. L. Prandtl, O.G. Tietjens, Fundamentals of Hydro- and Aeromechanics (Dover, New York, 1934)zbMATHGoogle Scholar
  9. L. Prandtl, O.G. Tietjens, Applied Hydro- and Aeromechanics (Dover, New York, 1934)zbMATHGoogle Scholar
  10. A.J. Smith, A Physical Introduction to Fluid Mechanics (Wiley, New York, 2000)Google Scholar
  11. J. Spurk, Fluid Mechanics (Springer, Berlin, 1997)CrossRefGoogle Scholar
  12. C.S. Yih, Fluid Mechanics: A Concise Introduction to The Theory (McGraw-Hill, New York, 1969)Google Scholar

Copyright information

© Springer International Publishing AG 2019

Authors and Affiliations

  1. 1.Department of Civil EngineeringNational Cheng Kung UniversityTainanTaiwan

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