Browsing by Author "Ghomri, A"

Filter results by typing the first few letters
Now showing 1 - 5 of 5
  • Thumbnail Image
    Item
    APPROCHE EXPERIMENTALE DE LA LONGUEUR DU ROULEAU DU SURFACE DU RESSAUT HYDRAULIQUE DANS UN CANAL PROFILE EN “U” A FOND RUGUEUX
    (جامعة الوادي - university of el oued, 2013) Ghomri, A; Riguet, F; Debabeche, M
    This study aims to experimentally evaluate an experimental approach to the length of the roller surface of the hydraulic jump controlled by threshold, moving in a channel profile 'U' rough bottom roughness for different tested. a functional relationship in dimensionless term, linking the different characteristics of the projection, showing the effect of the roughness of the channel bottom was obtained
  • No Thumbnail Available
    Item
    APPROCHE EXPERIMENTALE DE LA LONGUEUR DU ROULEAU DU SURFACE DU RESSAUT HYDRAULIQUE DANS UN CANAL PROFILE EN “U” A FOND RUGUEUX
    (جامعة الوادي - university of el oued, 2013) Ghomri, A; Riguet, F; Debabeche, M
    This study aims to experimentally evaluate an experimental approach to the length of the roller surface of the hydraulic jump controlled by threshold, moving in a channel profile 'U' rough bottom roughness for different tested. a functional relationship in dimensionless term, linking the different characteristics of the projection, showing the effect of the roughness of the channel bottom was obtained.
  • No Thumbnail Available
    Item
    CHARACTERISTICSOFHYDRAULICJUMPONROUGHMINORBEDINARECTANGULARCOMPOUNDCHANNEL
    (university of eloued -جامعة الوادي, 2022-01-01) Djamaa1, W; Lacheheb1, S; Ghomri, A
    A hydraulic jump is a characteristic phenomenon in open channel flow, downstream of block ramps or rock chutes a hydraulic jump can occur over a rough bed with great energy dissipation. This paper analyses the hydraulic jump that occurs in homogeneous rough minor beds in rectangular compound channels. the parameters that influence the length of the jump were systematically investigated [24]. the analyses of the phenomenon were conducted using the general jump equation. the experimental data were elaborated in order to supply a new formulation of the general jump equation that accounts for the minor bed roughness. New formulas that satisfactorily agree with the experimental data are proposed. The results showed that rough beds can be used to dissipate the excess hydraulic jump energy instilling basins.
  • No Thumbnail Available
    Item
    SEMI-THEORETICAL APPROACH TO THE EFFECT OF ROUGHNESS ON THE RELATIVE HEIGHT OF THE HYDRAULIC RESSAGE EVOLVING IN A TRIANGULAR CHANNEL
    (university of el oued/جامعة الوادي, 2019-01-01) Kateb, S; Ghomri, A; Debabeche, M
    The study aims to analyze the theoretical and experimental jump evolving in a triangular channel with a rough bottom. The principal goal of the study is to find a general relationship connecting the relative downstream height and the channel bottom roughness. This study will show also that the channel roughness contributes in the decrease of the downstream height of the jump.
  • No Thumbnail Available
    Item
    STUDY OF THE EXPERIMENTAL APPROACH OF THE RELATIVE THRESHOLD OF THE HYDRAULIC JUMP EVOLVING IN A RECTANGULAR CHANNEL OF COMPOSED SECTION WITH ROUGH MINOR BED
    (university of el oued/جامعة الوادي, 2021-05-01) Djamaa, W; Ghomri, A; Khechana, S
    The aim of this experimental study is to analyze the ratio of the relative t hreshold of the hydraulic jump evolving in a rectangular channel composed with a rough minor bed. functional relations, in dimensionless terms, as a function of the Fr oude number and of the roughness were obtained. Indeed, for a fixed initial height h 1 , th e increase in the incident Froude number causes both the displacement of the step downstream. therefore, it corresponds to a length Lj of the step and Lr of the roll, as well as a height h 2 downstream of the step and a height S of the threshold.