منابع مشابه
Flow Resistance in Sinuous or Irregular Channels
Part 1. The problem and the experiments. General statement-_________________________________ Flow in irregular open channels__________________. Design of experiment_____________._...______ Experimental conditions. ______________________ Experimental results._________________________ Character of the flow; deformation of the free surface. _ _ Conditions below threshold____________________ Condit...
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In this paper twelve different empirical resistance coefficients expressed in terms of Manning's roughness are used apiece in seventeen known compositing methods. The data obtained from ten different cross-sections of the Sefidrood River, Iran, are used for the evaluation of the empiricalformulas. The present case-study is selected from a reach with gravel bed topology. Then no remarkable bed f...
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Successful prediction of groundwater flow and solute transport through highly heterogeneous aquifers has remained elusive due to the limitations of methods to characterize hydraulic conductivity (K) and generate realistic stochastic fields from such data. As a result, many studies have suggested that the classical advective-dispersive equation (ADE) cannot reproduce such transport behavior. Her...
متن کاملModeling and Estimating the Dimensions of Stable Alluvial Channels using Soft Calculations
In this research, soft computational models including multiple adaptive spline regression model (MARS) and data group classification model (GMDH) were used to estimate the geometric dimensions of stable alluvial channels including channel surface width (w), flow depth (h), and longitudinal slope (S) and the results of the developed models were compared with the multilayer neural network (MLP) m...
متن کاملFlooding and Flow Path Selection on Alluvial Fans and Deltas
The surfaces of alluvial fans and river deltas (collectively fans) are often dissected by a small number of channels radiating from the fan apex. On long timescales, channels migrate via avulsion, the process of channel bed deposition and abandonment that often results in catastrophic flooding and loss of life on densely populated fans. We present results of an experimental fan that creates rea...
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ژورنال
عنوان ژورنال: PROCEEDINGS OF HYDRAULIC ENGINEERING
سال: 1995
ISSN: 0916-7374,1884-9172
DOI: 10.2208/prohe.39.653