Turbulent flows in porous media occur in a wide variety of applications, from catalysis in
packed beds to heat exchange in nuclear reactor vessels. In this review, we summarize the …

The streambed constitutes the physical interface between the surface and the subsurface of
a stream. Across all spatial scales, the physical properties of the streambed control surface …

Rivers are the great shapers of terrestrial landscapes. Very few points on Earth above sea
level do not lie within a drainage basin. Even points distant from the nearest channel are …

The hyporheic zone is the interface beneath and adjacent to streams and rivers where
surface water and groundwater interact. The hyporheic zone presents unique conditions for …

The paper reports on three direct numerical simulations of sediment transport with different
prototypical non-spherical particle shapes, ranging from prolate to oblate to a triaxial …

This paper presents image velocimetry measurements on turbulent flows adjacent to a
permeable bed made of randomly packed glass particles. For measuring flow velocities …

Rivers are not isolated systems but interact continuously with groundwater from their
confined headwaters to their wide lowland floodplains. In the last few decades, research on …

In-stream structures can potentially enhance surface and subsurface solute retention. They
form naturally in small streams and their installation has gained popularity in stream …

Quantification of velocity and pressure fields over streambeds is important for predicting
sediment mobility, benthic and hyporheic habitat qualities, and hyporheic exchange. Here …

The hyporheic zone is often a critical component of river systems. Hyporheic exchange is
generally forced by variation in riverbed topography such as due to bed forms. Most …