What question did this study set out to answer?

To establish a mathematical model capable of predicting the onset, amplification rate, and movement of ripples along the bottom surface of river ice covers.

September 1, 1972Journal of the Hydraulics Division

Ripples on Underside of River Ice Covers

View Full Paper

Ask AI

Bookmark

Authors

GAGeorge D. AshtonUniversity of Nottingham JKJohn KennedyWorld Meteorological Organization

Discussion

Member takes

Implication

Theoretical and experimental study reveals mechanisms controlling ripple formation beneath river ice covers, highlighting the role of turbulent heat transfer and thermal stability.

Key Points

To establish a mathematical model capable of predicting the onset, amplification rate, and movement of ripples along the bottom surface of river ice covers.
Formulated a heat-balance boundary model balancing upward conduction through ice against turbulent convective heat flux from flowing water using perturbation expansion.
Calibrated model coefficients and corroborated theoretical expressions using experimental laboratory flume measurements and comparative field observations.
Derived analytical criteria for interfacial wave stability, growth amplification rates, and ripple celerity driven by spatial phase shifts in turbulent heat flux.
Demonstrated qualitative and quantitative agreement between theoretical ripple behavior and empirical data collected from flume experiments and river field sites.

Cite This Study

Ashton et al. (1972) studied this question.

synapsesocial.com/papers/6a1c1b63ea84844e355f749a https://doi.org/10.1061/jyceaj.0003407

View Full Paper

Ask AI

Bookmark

Implication

Theoretical and experimental study reveals mechanisms controlling ripple formation beneath river ice covers, highlighting the role of turbulent heat transfer and thermal stability.

Ripples on Underside of River Ice Covers

Discussion

Member takes

Implication

Key Points

Cite This Study

Ripples on Underside of River Ice Covers

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider