EFFECT OF CROSS-SECTIONAL SHAPE ON CHANNEL HYDRAULICS

In the Fall of 1993, I was invited to give a lecture at the Universidade Federal do São Carlos, in São Paulo, Brazil. I spoke about the effect of cross-sectional shape on channel hydraulics, a topic which I had been researching with Pedro Porras, one of our graduate students. Some time later, we published a paper in the ASCE Journal of Hydraulic Engineering.1

As he introduced me to his students, my host, Dr. Fazal Chaudhry, mentioned that in his opinion, we were one of the very few to research the subject of the cross-sectional effects on the flow hydraulics. He was correct, and I was very pleased with the uncommon recognition.


1 Ponce, V. M., and P. J. Porras. 1995. Effect of cross-sectional shape on free-surface instability. ASCE Journal of Hydraulic Engineering, Vol. 121, No. 4, April, 376-380.

Rolls waves in a lateral irrigation canal, Cabana-Mañazo, Puno, Peru.