This course covers fundamental aspects of fluid mechanics and hydraulics. It contains a review of the fundamental equations of Fluid Mechanics, an expansion of the methods of momentum analysis known from Thermofluids, and a detailed discussion of the powerful technique of Dimensional Analysis, which allows the systematic discovery of parameter sets that govern the characteristic features of a flow. Special emphasis will be given to friction effects in fluid flows. The course then examines several important applications in civil engineering, including friction and minor losses in single pipelines and pipe networks, pump-pipe systems and open channel flow; the latter will include friction losses and conservation of energy and momentum principles.