Fluid Mechanics

REQUEST: files to be submitted on Canvas: 1. PowerPoint Report based on provide template (please do not change anything in the template, just add your image/animation or important analysis onto the slides) 2. Mesh file msh 3. Case file.cas NOTES 4. Please don't work for your friend under any circumstances. 5. You can be asked to submit the workbench zip file wbpz file (File Archive) any time during marking. 6. If you fail to prove you do the work yourself, your case will be transferred to Student Conduct team.

The thicker the insulation, lower the hear transfer is true for O a. Cylinder O b. Sphere OC. Flat Wall Od. Constant heat transfer Area Oe. Both (c) and (d)

In the absence of any bulk fluid motion, heat transfer between a solid surface and the adjacent fluid is by O a. Pure Conduction O b. Mixed conduction and convection Oc. Pure Radiation O d. Pure Convection

Lift force is normal to the upstream velocity Select one: True OFalse

Steam at 380 °C flows in a stainless steel pipe [k=19 W/(m. °C)] whose inner and outer diameters are 8 cm and 10 cm, respectively. The pipe is covered with 4.5-cm-thick glass wool insulation [k=0.042 W/(m. °C)]. Heat is lost to the surroundings at 10 °C by natural convection and radiation, with a combined natural convection and radiation heat transfer coefficient of 22 W/(m2.°C). Taking the heat transfer coefficient inside the pipe to be 86 W/(m². C), determine the rate of heat loss from the steam per unit length of the pipe. Also determine the temperature drops across the pipe shell and the insulation.

A channel has a rectangular cross section, a width of 60 m, and a flow rate of 5200 m³/s. The normal water depth is 35 m. The flow then encounters a 5 m high dam. Find the water depth directly above the dam if the flow is critical. Assume friction less flow.

Determine the gage pressure at point A in Fig. P2.45, in pascals. Is it higher or lower than Patm?

Express standard atmospheric pressure as a head, h = p/pg, in (a) feet of glycerin; (b) inches of mercury; (c) meters of water; and (d) mm of ethanol.

In Fig. P2.12 the tank contains water and immiscible oil at 20°C. What is h in centimeters if the density of the oil is 898 kg/m3?

In Fig. P2.21 all fluids are at 20°C. Gage A reads 350 kPa absolute. Determine (a) the height h in cm; and (b) the reading of gage B in kPa absolute.