ABSTRACT
This chapter describes a method to achieve a more accurate solution of the hydraulic problem involving two special aspects in the evaluation of the results of some studies of intake performance. The first special aspect of this method is the use of a combined dimensionless number which would improve the description of the influence of induced circulation on the critical conditions for the hydraulic performance of intakes. The second aspect involves consideration of the role which seems to play the intake orientation on the prediction of the critical submergence for the intake. The chapter discusses the formulation and application of an analytical prediction of the critical intake submergence as a main design tool. The most important outcome of J. L. Gordon's prototype investigation is that for the purpose of design the relation between the critical submergence and the intake Froude number may be taken as a linear function.
