• Meinhard T. Schobeiri


The structure of thermo-fluid sciences rests on three pillars, namely fluid mechanics, thermodynamics, and heat transfer. While fluid mechanics’ principles are involved in open system thermodynamics processes, they play a primary role in every convective heat transfer problem. Fluid mechanics deals with the motion of fluid particles and describe their behavior under any dynamic condition where the particle velocity may range from low subsonic to hypersonic. It also includes the special case termed fluid statics, where the fluid velocity approaches zero. Fluids are encountered in various forms including homogeneous liquids, unsaturated, saturated, and superheated vapors, polymers and inhomogeneous liquids and gases. As we will see in the following chapters, only a few equations govern the motion of a fluid that consists of molecules. At microscopic level, the molecules continuously interact with each other moving with random velocities. The degree of interaction and the mutual exchange of momentum between the molecules increases with increasing temperature, thus, contributing to an intensive and random molecular motion.


Boundary Layer Fluid Particle Suction Surface Turbulent Spot Reynolds Stress Tensor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Navier, C.L.M.H.: Mémoire sur les lois du mouvement des fluides. Mém. Acad. Roy. Sci. 6, 389–416 (1823)Google Scholar
  2. 2.
    Stokes, G.G.: On the effect of internal friction of fluids on the motion of pendulums. Trans. Camb. Phil. Soc. 9(II), 8–106 (1851)Google Scholar
  3. 3.
    Prandtl, L.: Über Flüßigkeitsbewegung bei sehr kleiner Reibung. Verh. 3. Intern. Math. Kongr., Heidelberg (1904), pp. 484-491, Nachdruck: Ges. Abh., pp. 575-584. Springer, Heidelberg (1961)Google Scholar
  4. 4.
    von Kármán, T.: Über laminare und turbulente Reibung. Zeitschrift für angewandte Mathematik und Mechanik 1, 233–252 (1921)Google Scholar
  5. 5.
    Reynolds, O.: An Experimental Investigation of the Circumstances Which Determine Whether the Motion of Water Shall Be Direct Sinuous and of the Law or Resistance in Parallel Channels. Phi. Trans. R. Soc. 174, 935–982 (1883)CrossRefGoogle Scholar
  6. 6.
    Eric, F.R.: Rheology-Theory and Practice, vol. 3. Academic Press, New York (1960)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Meinhard T. Schobeiri

    There are no affiliations available

    Personalised recommendations