In this question, you are asked to (a) perform a r-momentum balance over a control volume,...
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In this question, you are asked to (a) perform a r-momentum balance over a control volume, and (b) state two boundary conditions that are required for determining velocity distribution u(z,r). You do NOT need to solve for velocity in (b), just state two required boundary conditions. In this question, for convenience in grading, perform the derivation in the following steps: o Define a control volume. o Write out zero and non-zero rates of r-momentum in and out across control volume surfaces in the r and z directions by convective and molecular mechanisms (as flow properties are uniform in 0). Explain if a non-zero rate is uniform in ror z direction. o Write out the z-momentum balance over the control volume for steady flow based on the non-zero rates of r-momentum above. Side View Top View 2H 2 Ro R. Figure 1 In this question, you are asked to (a) perform a r-momentum balance over a control volume, and (b) state two boundary conditions that are required for determining velocity distribution u(z,r). You do NOT need to solve for velocity in (b), just state two required boundary conditions. In this question, for convenience in grading, perform the derivation in the following steps: o Define a control volume. o Write out zero and non-zero rates of r-momentum in and out across control volume surfaces in the r and z directions by convective and molecular mechanisms (as flow properties are uniform in 0). Explain if a non-zero rate is uniform in ror z direction. o Write out the z-momentum balance over the control volume for steady flow based on the non-zero rates of r-momentum above. Side View Top View 2H 2 Ro R. Figure 1
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