Problem 22 Situation: A water tower has a storage tank whose shape can be considered equivalent to a sphere with a diameter of 50 [ft]. The tank is in a windy area with average winds of 30 [mi/h] and gusts reaching 100 [mi/h]. At 20 [°C], the viscosity of air is 0.017 [cP] and its kinematic viscosity is 15.05 [cSt]. Requirements: Please, estimate the force of the average winds and gusty winds on the tank at about 20 [°C]. Express your answer in [kN] and [lb]. Assume you can extend the graph or equations (except Ans.: 5.8 [kN]; 1305 [lb] 64 [kN]; 14,470 [b] creeping flow equation) up to Reynolds numbers of 50,000,000.

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Problem 22
Situation:
A water tower has a storage tank whose shape can be considered equivalent to a sphere with a
diameter of 50 [ft]. The tank is in a windy area with average winds of 30 [mi/h] and gusts reaching
100 [mi/h]. At 20 [°C], the viscosity of air is 0.017 [cP] and its kinematic viscosity is 15.05 [cSt].
Requirements:
Please, estimate the force of the average winds and gusty winds on the tank at about 20 [°c].
Express your answer in [kN] and [lb]. Assume you can extend the graph or equations (except
Ans.: 5.8 [kN]; 1305 [lb]
64 [kN]; 14,470o [lb]
creeping flow equation) up to Reynolds numbers of 50,000,000.
Transcribed Image Text:Problem 22 Situation: A water tower has a storage tank whose shape can be considered equivalent to a sphere with a diameter of 50 [ft]. The tank is in a windy area with average winds of 30 [mi/h] and gusts reaching 100 [mi/h]. At 20 [°C], the viscosity of air is 0.017 [cP] and its kinematic viscosity is 15.05 [cSt]. Requirements: Please, estimate the force of the average winds and gusty winds on the tank at about 20 [°c]. Express your answer in [kN] and [lb]. Assume you can extend the graph or equations (except Ans.: 5.8 [kN]; 1305 [lb] 64 [kN]; 14,470o [lb] creeping flow equation) up to Reynolds numbers of 50,000,000.
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