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분야
hwp2. Objective
3. Theoretical background
3.1 Reynolds number
3.2 The ratio of fraction particle concentration
3.3 CMC - Carboxymethyl cellulose sodium
3.4 Oil drilling
4. Experimental setup and instrumentation
5. Experimental procedure
6. Experimental Measurement Data
6.1 Mass flow rate in water
6.2 Mass flow rate in CMC
7.Conclusion
1. Mass Flow Rate In Water
2. Mass Flow Rate In 0.4-CMC
7.Discussion
8.Reference
1) To investigate of solid-liquid mixture flow characteristics in a slim hole annulus
2) Effect of pipe rotation, fluid property, annulus inclination on the particle transport velocity, transport efficiency and pressure drop
3. Theoretical background
3.1 Reynolds number
Reynolds number can be defined for a number of different situations where a fluid is in relative motion to a surface (the definition of the Reynolds number is not to be confused with the Reynolds Equation or lubrication equation). These definitions generally include the fluid properties of density and viscosity, plus a velocity and a characteristic length or characteristic dimension. This dimension is a matter of convention - for example a radius or diameter are equally valid for spheres or circles, but one is chosen by convention. For aircraft or ships, the length or width can be used. For flow in a pipe or a sphere moving in a fluid the internal diameter is generally used today. Other shapes (such as rectangular pipes or non-spherical objects) have an equivalent diameter defined. For fluids of variable density (e.g. compressible gases) or variable viscosity (non-Newtonian fluids) special rules apply. The velocity may also be a matter of convention in some circumstances, notably stirred vessels.
8.Reference
http://en.wikipedia.org/wiki/Reynolds_number
http://www.cxchuangxin.com/pages/bentonite.htm
http://en.wikipedia.org/wiki/Bentonite
http://en.wikipedia.org/wiki/Carboxymethyl_cellulose
http://www.iro-taihe.com/Oil-Drilling-Chemicals/01-CMC.html
http://en.wikipedia.org/wiki/Oil_well
