Design and use of integrating header pitot grids

Conclusions

The described method, based on rather cumbersome theoretical computations is simple in design and convenient in use and provides the possibility of an instantaneous reading from one manometer of the integral value being sought and therefore is applicable both for steady and variable operating regimes of water conduits of investigated hydraulic systems when other methods are not suitable.

When piezometric tubes are joined by a common header they show a value close to the average pressure in the flow. The velocity tubes show the value of the specific kinetic energy of the flow and the Pitot tubes show the value of the total specific energy of the flow. A differential manometer connected to two header Pitot tubes installed in two cross sections of conduits of the investigated hydraulic system show the loss of energy between these cross sections.