Flow and Sediment Transport Relations Constraining Environmental Conditions (Fluvial Fans)

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Presentation transcript:

Flow and Sediment Transport Relations Constraining Environmental Conditions (Fluvial Fans)

Sandy channels Gravel channels Expanding Flow

Expanding Flow Model (bedload) Parker et al. (1998) Reduce: n = 3/2 (bedload); Terrestrial Fans (Stock et al., 2008), Experimental Fans No Dependence on g, D, or Flow Width!

Suspension-Dominated SandBedload-Dominated Sand Straight to Concave ProfilesConvexo-Concave Profiles

Bedload-Dominated Sand Straight to Concave Profiles

Bedload-Dominated Sand Experiments Vary Qw Lines are Theoretical Prediction (no tuning of parameters)

Bedload-Dominated Sand Experiments Vary Qso Lines are Theoretical Prediction (no tuning of parameters)

Suspension-Dominated Sand Convexo-Concave Profiles

Suspension-Dominated Sand Experiments Vary Qw Lines are Theoretical Prediction (no tuning of parameters)

Suspension-Dominated Sand Experiments Vary Qso Lines are Theoretical Prediction (no tuning of parameters)

Suspension-Dominated Coal Experiments Lines are Theoretical Prediction (sediment transport coefficient tuned to match lowest Qso/Qw point)