Author(s): Robert Ettema; David Z. Zhu; Susan J. Gaskin; Sean Mulligan; Troy C. Lyons; Robert M. Boes; Shu Ning Chan; Joseph H. W. Lee
Keywords: IAHR Water Monograph Series; Open Access; Vortex; Vortex-flow intakes
This Water Monograph shows how designers use swirl and vortex generation to design vortex-flow intakes used to create vortex flows in dropshafts. Special focus is given to tangential vortex intakes, as this form is becoming especially common in urban areas. In addition, this monograph considers when swirl and vortex formation are undesired for intakes, especially submerged intakes such as used for hydropower and pumps. In so doing, this monograph serves as an update of the valuable 1987 IAHR monograph. The use of vortex-flow intakes has grown substantially since IAHR’s original monograph and will continue to grow in the foreseeable future.