Examinando por Autor "Mejía-Garcés, F. J. (Francisco Jaime)"

Mostrando 1 - 3 de 3
  • Miniatura
    PublicaciónAcceso abierto
    La función fuerza específica en canales
    (2014-05-06) Mejía-Garcés, F. J. (Francisco Jaime)
    This paper shows the momentum equation applied to open-channel flow and to study the specific force function in terms of its properties, the definition of a critical flow condition and its non-dimensional form.
  • Miniatura
    PublicaciónAcceso abierto
    Relación de las curvas de energía específica y pendiente de fricción con las zonas de flujo libre en canales
    (2014-05-09) Mejía-Garcés, F. J. (Francisco Jaime)
    One objective of an introductory course of open-channel flow is the analysis of gradually varied flow profiles. This paper shows a teaching-learning strategy that might improve the university practices for teaching hydraulics. It is well known the depth-specific energy curve (y-E) for describing and interpreting open-channel flow hydraulics. It is proposed to complement that curve with the depth-energy slope curve (y-sf). By using a graphic comparison, it aims to illustrate the concepts of the subcritical (y>ycritical, vynormal, v
  • Miniatura
    PublicaciónAcceso abierto
    El transporte de cantidad de movimiento en canales
    (2014-05-06) Mejía-Garcés, F. J. (Francisco Jaime)
    The objective of this article is to apply the momentum principle in open channels flow as an independent methodology from other physical principles. It remedies a fault of the technical literature by the additional interpretation of hydraulics phenomena that normally are studied with the energy conservation principle. It concludes about the flow depth faced with several flow conditions or flow variations or hydraulics controls. This paper shows the momentum equation applied to the interpretation of the flow depth in several openchannel flow situations: uniform, gradually varied, and some local phenomena as transitions and hydraulic jump. Hydraulic jump equations are obtained for several cross sections in terms of the initial and sequent depth of flow.