The effects of small-amplitude, two-dimensional grooves on pressure losses in a laminar
channel flow have been analysed. Grooves with an arbitrary shape and an arbitrary …

Optimal shapes of laminar, drag reducing longitudinal grooves in a pressure driven flow
have been determined. It has been shown that such shapes can be characterized using …

The present study investigates numerically the thermo-hydraulic transport characteristics of
non-Newtonian fluids in corrugated channels. The power-law model is used to describe the …

Pressure-gradient-driven flows through sinusoidal channels have been studied. The
analysis was carried out up to the formation of secondary nonlinear states and spanned a …

Natural convection in an infinite horizontal layer subject to periodic heating along the lower
wall has been investigated using a combination of numerical and asymptotic techniques …

The travelling wave instability in a channel with small-amplitude longitudinal grooves of
arbitrary shape has been studied. The disturbance velocity field is always three-dimensional …

Flow in a channel with distributed surface roughness is considered. Results of the linear
stability analysis show that the presence of the roughness destabilizes the traveling-wave …

Linear stability of a two-dimensional flow in a channel with distributed surface roughness is
considered. The structure of the disturbance field is related to the structure of the roughness …

Stokes flow is solved through a channel with three-dimensional wavy walls enclosed by two
wavy walls whose amplitude is proportional to the mean clearance of the channel multiplied …

The temporal linear stability of a pressure-driven flow in a diverging–converging channel
with respect to the traveling wave disturbances is considered. The flow may develop under …