A major conceptual difference between Kennedy's theory and Lacey's theory for silt-carrying canals is that:
Options:
(A) Kennedy assumed silt-supporting eddies originate only from the channel bed, whereas Lacey recognized eddies originate from all wetted perimeter boundaries
(B) Kennedy used Lacey's silt factor $f$
(C) Lacey neglected channel side slope
(D) Kennedy designed only lined channels
Answer Key:
A
Step-by-Step Solution & Explanation
Kennedy considered upward vertical eddy generation from the horizontal bed only, while Lacey demonstrated that generating turbulence occurs across the entire wetted boundary, requiring perimeter-based regime equations.