In engineering, the moody chart or moody diagram is a graph in nondimensional form that relates the darcyweisbach friction factor fd, reynolds number re, and surface roughness for fully developed flow in a circular pipe. It can be used to predict pressure drop or flow rate down such a pipe. From the diagram above, with the relative rougness and the reynolds number the friction factor can be estimated to aprox. Requires java lubricating filmcomputes the viscous shears and pressures produced by lubricating films in bearings of various geometries. Another hydraulics program, for calculating pipes with moody s diagram. If you continue browsing the site, you agree to the use of cookies on this website. The moody friction factor f is used in the darcyweisbach major loss equation. You may enter numbers in any units, so long as you are consistent. Profesor pedro vargas diametro ext mm espesor mm diametro interior mm diametro ext mm espesor mm diametro interior mm 14 355,6 6,35 342,9 1 12 48,3 5,08 38,1 16. However, you must still enter an e for the program to run even though e is not used to compute f. The equations used in this program represent the moody diagram which is the oldfashioned way of finding f. Equations can be found in discussion and references for closed conduit flow. Request pdf on jul 9, 2014, saturninoluis albert virto and others published presentacion 10.
Son application aux ecoulements en charge est abord ee. A very nice moody diagram in pdf format from glasgow college of nautical studies can be found here. A moody diagram that can be used to estimate friction coefficients. Absolute roughness coefficient for some common materials. L 3 t means that the variable has units of cubic length per time e. In engineering, the moody chart or moody diagram is a graph in nondimensional form that.
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