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11.23 Chemical, civil, and mechanical engineers must often determine the power required to pump a fluid through a series of pipes. To do so, we must first determine a friction factor. If the fluid flow is turbulent and the pipes are smooth, the friction factor can be determined as 1.1513/vf = In (ReVf12.51) In this equation f represents the friction factor, a positive value that does not exceed 0.1, and Re represents the Reynolds number, which is a function of the fluid properties, the pipe diameter, and the nominal fluid velocity. The Reynolds number increases with increasing fluid velocity. The flow be- comes turbulent at higher velocities, when the Reynolds number exceeds approximately 3000. Hence the above equation is valid only when Re exceeds 3000. Determine the values of the friction factor corresponding to Reynolds numbers of 5000, 12,000, and 20,000. Does the friction factor increase or in decrease as the Reynolds number increases?

11.23 Chemical, civil, and mechanical engineers must often determine the power required to pump a fluid through a series of pipes. To do so, we must first determine a friction factor. If the fluid flow is turbulent and the pipes are smooth, the friction factor can be determined as 1.1513/vf = In (ReVf12.51) In this equation f represents the friction factor, a positive value that does not exceed 0.1, and Re represents the Reynolds number, which is a function of the fluid properties, the pipe diameter, and the nominal fluid velocity. The Reynolds number increases with increasing fluid velocity. The flow be- comes turbulent at higher velocities, when the Reynolds number exceeds approximately 3000. Hence the above equation is valid only when Re exceeds 3000. Determine the values of the friction factor corresponding to Reynolds numbers of 5000, 12,000, and 20,000. Does the friction factor increase or in decrease as the Reynolds number increases?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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ER 11O IV 11.23 Chemical, civil, and mechanical engineers must often determine the power required to pump a fluid through a series of pipes. To do so, we must first determine a friction factor. If the fluid flow is turbulent and the pipes are smooth, the friction factor can be determined as pay 1.1513/vf = In (ReVf/2.51) is the In this equationf represents the friction factor, a positive value that does not exceed 0.1, and Re represents the Reynolds number, which is a function of the fluid properties, the pipe diameter, and the nominal fluid velocity. The DV = Reynolds number increases with increasing fluid velocity. The flow be- comes turbulent at higher velocities, when the Reynolds number exceeds approximately 3000. Hence the above equation is valid only when Re exceeds 3000. Determine the values of the friction factor corresponding to Reynolds numbers of 5000, 12,000, and 20,000. Does the friction factor increase or decrease as the Reynolds number increases? ni nwoda
Transcribed Image Text:ER 11O IV 11.23 Chemical, civil, and mechanical engineers must often determine the power required to pump a fluid through a series of pipes. To do so, we must first determine a friction factor. If the fluid flow is turbulent and the pipes are smooth, the friction factor can be determined as pay 1.1513/vf = In (ReVf/2.51) is the In this equationf represents the friction factor, a positive value that does not exceed 0.1, and Re represents the Reynolds number, which is a function of the fluid properties, the pipe diameter, and the nominal fluid velocity. The DV = Reynolds number increases with increasing fluid velocity. The flow be- comes turbulent at higher velocities, when the Reynolds number exceeds approximately 3000. Hence the above equation is valid only when Re exceeds 3000. Determine the values of the friction factor corresponding to Reynolds numbers of 5000, 12,000, and 20,000. Does the friction factor increase or decrease as the Reynolds number increases? ni nwoda
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