View Vol. 3 , Iss. 1 (January 2020): Special Issue

Journal of Geographical Research

ISSN: 2630-5070 (Online)

Vol. 3 , Iss. 1 (January 2020): Special Issue

  • Article

    Discussion at Maximum Sediment Discharge Theory

    Levent Yilmaz
    1-5

    Article ID: 1572    DOI：https://doi.org/10.30564/jgr.v3i1.1572
    293  (Abstract) 62  (Download)

    Abstract:

    It is observed the gravel river sediment discharge with existing empirical regime relationships. The aim of the research is to give a mathematical model about the stable cross-section geometry and to determine a model for the stable slope of an alluvial channel which is in nature seldom stable. In an alluvial channel to reach an... More

  • Article

    Empirical Studies in Alluvial Streams

    Levent Yilmaz
    6-8

    Article ID: 1668    DOI：https://doi.org/10.30564/jgr.v3i1.1668
    298  (Abstract) 63  (Download)

    Abstract:

    Meander flow takes place in one single channel which oscillates more or less regularly with amplitudes that tend to increase with time. Meanders are found in beds of fine sediments with gentle slopes. In this study, effort will be made to investigate meanders’ turbulent boundary layer and to improve the present knowledge about the river... More

  • Article

    Sediment Distribution of the River Boundary Layer

    Levent Yilmaz
    9-13

    Article ID: 1844    DOI：https://doi.org/10.30564/jgr.v3i1.1844
    300  (Abstract) 64  (Download)

    Abstract:

    The movement of particles on the river boundary layer is a complex phenomena which can be never solved by a deterministic approach. The unsteady non uniform conditions in flow boundary layer show the result of water surface and bed stream changing with time and location of particles. To determine the movement of boundary layer particles... More

  • Article

    Development of River Meander Model

    Levent Yilmaz
    14-17

    Article ID: 1845    DOI：https://doi.org/10.30564/jgr.v3i1.1845
    464  (Abstract) 71  (Download)

    Abstract:

    In the studies of open-channel flow with suspended sediments, used a constant of Von Karman κ in a model for velocity profile. The augmentation parameters have been added by various researchers in more recent development of the boundary-layer theory of meander development. In this research new parameters will be included because of the existence of... More

  • Article

    Applications in New River-meander Model

    Levent Yilmaz
    18-21

    Article ID: 1896    DOI：https://doi.org/10.30564/jgr.v3i1.1896
    283  (Abstract) 67  (Download)

    Abstract: If the sediment transport behaves as bed-load, the sediment surface at meandering channel will deform into transverse waves.This investigation is a new model for prediction of river-meander models in nature.The aim of this research is to give a precise method whose bed forms can have a variety of scales ranging from ripples through small dunes... More