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#2 Turbulent Flow in Pipes Water (p-1000 kg/m3, щ-0.001 N. s/m2) flows through a 0.1 m pipe at 0....
Question 3 [20 marks] Water (density p1000 kg/m2; dynamic viscosity 0.001 Pa-s) flows steadily through a horizontal, st...
Question 3 [20 marks] Water (density p1000 kg/m2; dynamic viscosity 0.001 Pa-s) flows steadily through a horizontal, straight pipe with circular cross section of diameter D=0.2 m. The volumetric flow rate is 0.01 m°/s. Argue that this is turbulent flow. [4 marksl а. Pressure drop in the pipe is due to friction. The pressure drop per unit length can be written as Др 4f L with U the average velocity in the pipe and fthe friction factor. Given the pipe...
ater (density 1000 kg/m3, viscosity 0.001 N-s/m2) flows from a large reservoir through straight pipe into the atmosphere at a flowrate of 2.5 m3/s. The reservoir is pressurized to 200 kPa (gage)....
ater (density 1000 kg/m3, viscosity 0.001 N-s/m2) flows from a large reservoir through straight pipe into the atmosphere at a flowrate of 2.5 m3/s. The reservoir is pressurized to 200 kPa (gage). The pipe has a diameter of 0.5 m and absolute roughness of 0.1 mm. The pipe also contains a turbine that has an efficiency of 0.6. si A) Is the flow in the pipe laminar or turbulent? (3 pts) B) What is the power transmitted from the turbine...
40 N"s/m2 and ?-1000 kg/m3 is flowing through a circular pipe umetric flow rate (Q) of...
40 N"s/m2 and ?-1000 kg/m3 is flowing through a circular pipe umetric flow rate (Q) of the oil is 1*10 m'/s, determine: 1) (2096) Oil with viscosity of with diameter D 0 0.1 m. If the volu a. b. If the flow is laminar or turbulent Th e pressure drop over a 20 m length of p ipe in kPa
H2.3 Consider water at 20°C flowing through a horizontal pipe of diameter 15 cm and length 10 m. ...
H2.3 Consider water at 20°C flowing through a horizontal pipe of diameter 15 cm and length 10 m. The flowrate is 0.021 m3/s and the wall shear stress is 5.76 N/m2. Assume fully developed flow. a. Verify that the flow is turbulent b. Determine the pressure drop [N/m2 c. Estimate the viscous sublayer thickness [mm], i.e., where y+ 5 d. Compare results of part c. with typical pipe roughness (see Table 8.1 in text and comment on implication e. Using...
C) In compressible fluid flow through a smooth pipe with diameter d and constant volume flux...
C) In compressible fluid flow through a smooth pipe with diameter d and constant volume flux V 1. Estimate the viscous sublayer thickness. 2. Calculate the wall shear stress 3. Give the value of turbulent shear stress at the wall and at the pipe center. V-0.07854 m'/s, d-0.1m, V- 0.000001 m'/s, p- 1000kg/m3 Use the Prandtl equation to determine the friction factor
A pipe caring water with volumetric flow rate 0.6 m3/s branches into five pipes. The first...
A pipe caring water with volumetric flow rate 0.6 m3/s branches into five pipes. The first pipe is (diameter=33Cm and velocity=1.3m/s), the second pipe is (diameter=32Cm), the third pipe is (diameter=26Cm and velocity=1.8m/s), the fourth pipe is (diameter=28Cm and velocity=2.2m/s), while the fifth pipe is (diameter=25Cm and velocity=2m/s). Find the velocity in the second pipe. Density of water=1000kg/m3. Select one: O a. 1.982 m/s Ob. 1.883 m/s O c. 2.014 m/s O d. 2.121 m/s O e. 2.231 m/s
3. Water flowing through a pipe assumes a laminar-flow velocity profile at some section is parabolic:...
3. Water flowing through a pipe assumes a laminar-flow velocity profile at some section is parabolic: u(0) -4J Figure 2 where u(r) is the velocity at any position r, ß is a constant,-11s the viscosity of water, and r is the radial distance from the pipe centerline. (a) Develop an equation for u(r) assuming a parabolic velocity profile and using the known velocities at the walls u(ro)-0 and the center u(0) (Just use symbols). (b) Develop an equation for shear...
7. Two round pipes have water flowing through them. Pipe B is half of the diameter...
7. Two round pipes have water flowing through them. Pipe B is half of the diameter of pipe A. If the average velocity of the flow through both pipes is the same, what is Q./Q.? B 8. A lubricating oil with a viscosity of 0.1 (N s/m' is between two plates, one stationary and one moving If the moving plate is moving with a velocity of 1.3 m/s and the distance between the plates is 0.4 cm what is the...
Review Part A SAE 10W-30 oil lows through the 30-mm-diameter smooth pipe shown in (Figure 1). The pressure at A is 200 kPa and at Br is 150 kPa Take A- 920 kg/m3 and W 0.1(10-3) m/s Find the maximum...
Review Part A SAE 10W-30 oil lows through the 30-mm-diameter smooth pipe shown in (Figure 1). The pressure at A is 200 kPa and at Br is 150 kPa Take A- 920 kg/m3 and W 0.1(10-3) m/s Find the maximum shear stress of the oil in the Express your answer using three significant figures and include the appropriate units 93.8 Correct Part B Determine the thickness of the viscous sublayer Express your answer using three significant figures and include the...
Consider the turbulent flow of air, density 1.2 kg/m3 and kinematic viscosity 1.5x10-5m2/s, through a channel bounded by two infinitely wide parallel plates 0.2 m apart. At a certain downstream locati...
Consider the turbulent flow of air, density 1.2 kg/m3 and kinematic viscosity 1.5x10-5m2/s, through a channel bounded by two infinitely wide parallel plates 0.2 m apart. At a certain downstream location where fully-developed conditions apply, the wall shear stress is measured to be 0.027 N/m2. a. Determine the streamwise mean velocities at locations 0.25 mm and 1 cm from the wall. b. At which of these two locations do you expect to find the larger Reynolds shear stress.
Question 3 [20 marks] Water (density p1000 kg/m2; dynamic viscosity 0.001 Pa-s) flows steadily through a horizontal, straight pipe with circular cross section of diameter D=0.2 m. The volumetric flow rate is 0.01 m°/s. Argue that this is turbulent flow. [4 marksl а. Pressure drop in the pipe is due to friction. The pressure drop per unit length can be written as Др 4f L with U the average velocity in the pipe and fthe friction factor. Given the pipe...
ater (density 1000 kg/m3, viscosity 0.001 N-s/m2) flows from a large reservoir through straight pipe into the atmosphere at a flowrate of 2.5 m3/s. The reservoir is pressurized to 200 kPa (gage). The pipe has a diameter of 0.5 m and absolute roughness of 0.1 mm. The pipe also contains a turbine that has an efficiency of 0.6. si A) Is the flow in the pipe laminar or turbulent? (3 pts) B) What is the power transmitted from the turbine...
40 N"s/m2 and ?-1000 kg/m3 is flowing through a circular pipe umetric flow rate (Q) of the oil is 1*10 m'/s, determine: 1) (2096) Oil with viscosity of with diameter D 0 0.1 m. If the volu a. b. If the flow is laminar or turbulent Th e pressure drop over a 20 m length of p ipe in kPa
H2.3 Consider water at 20°C flowing through a horizontal pipe of diameter 15 cm and length 10 m. The flowrate is 0.021 m3/s and the wall shear stress is 5.76 N/m2. Assume fully developed flow. a. Verify that the flow is turbulent b. Determine the pressure drop [N/m2 c. Estimate the viscous sublayer thickness [mm], i.e., where y+ 5 d. Compare results of part c. with typical pipe roughness (see Table 8.1 in text and comment on implication e. Using...
C) In compressible fluid flow through a smooth pipe with diameter d and constant volume flux V 1. Estimate the viscous sublayer thickness. 2. Calculate the wall shear stress 3. Give the value of turbulent shear stress at the wall and at the pipe center. V-0.07854 m'/s, d-0.1m, V- 0.000001 m'/s, p- 1000kg/m3 Use the Prandtl equation to determine the friction factor
A pipe caring water with volumetric flow rate 0.6 m3/s branches into five pipes. The first pipe is (diameter=33Cm and velocity=1.3m/s), the second pipe is (diameter=32Cm), the third pipe is (diameter=26Cm and velocity=1.8m/s), the fourth pipe is (diameter=28Cm and velocity=2.2m/s), while the fifth pipe is (diameter=25Cm and velocity=2m/s). Find the velocity in the second pipe. Density of water=1000kg/m3. Select one: O a. 1.982 m/s Ob. 1.883 m/s O c. 2.014 m/s O d. 2.121 m/s O e. 2.231 m/s
3. Water flowing through a pipe assumes a laminar-flow velocity profile at some section is parabolic: u(0) -4J Figure 2 where u(r) is the velocity at any position r, ß is a constant,-11s the viscosity of water, and r is the radial distance from the pipe centerline. (a) Develop an equation for u(r) assuming a parabolic velocity profile and using the known velocities at the walls u(ro)-0 and the center u(0) (Just use symbols). (b) Develop an equation for shear...
7. Two round pipes have water flowing through them. Pipe B is half of the diameter of pipe A. If the average velocity of the flow through both pipes is the same, what is Q./Q.? B 8. A lubricating oil with a viscosity of 0.1 (N s/m' is between two plates, one stationary and one moving If the moving plate is moving with a velocity of 1.3 m/s and the distance between the plates is 0.4 cm what is the...
Review Part A SAE 10W-30 oil lows through the 30-mm-diameter smooth pipe shown in (Figure 1). The pressure at A is 200 kPa and at Br is 150 kPa Take A- 920 kg/m3 and W 0.1(10-3) m/s Find the maximum shear stress of the oil in the Express your answer using three significant figures and include the appropriate units 93.8 Correct Part B Determine the thickness of the viscous sublayer Express your answer using three significant figures and include the...
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