Fluid Flow CONTINUITY EQUATIONCONTINUITY EQUATIONUnderstanding the quantities measured by the volumetric flow rateand mass flow rate is crucial to understanding other fluid flow topics.The continuity equation expresses the relationship between mass flowrates at different points in a fluid system under steady-state flowconditions.EO 1.1 DESCRIBE how the density of a fluid varies with temperature.EO 1.2 DEFINE the term buoyancy.EO 1.3 DESCRIBE the relationship between the pressure in afluid column and the density and depth of the fluid.EO 1.4 STATE Pascal’s Law.EO 1.5 DEFINE the terms mass flow rate and volumetric flowrate.EO 1.6 CALCULATE either the mass flow rate or thevolumetric flow rate for a fluid system.EO 1.7 STATE the principle of conservation of mass.EO 1.8 CALCULATE the fluid velocity or flow rate in aspecified fluid system using the continuity equation.IntroductionFluid flow is an important part of most industrial processes; especially those involving thetransfer of heat. Frequently, when it is desired to remove heat from the point at which it isgenerated, some type of fluid is involved in the heat transfer process. Examples of this are thecooling water circulated through a gasoline or diesel engine, the air flow past the windings ofa motor, and the flow of water through the core of a nuclear reactor. Fluid flow systems are alsocommonly used to provide lubrication.Fluid flow in the nuclear field can be complex and is not always subject to rigorous mathematicalanalysis. Unlike solids, the particles of fluids move through piping and components at differentvelocities and are often subjected to different accelerations.Rev. 0 Page 1 HT-03

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