Air, 4 m/s Air River

Q: A rectangular duct made of commercial steel is used to channel air at 1 atm and 35°C at an average…

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Q: In fully developed laminar flow in a circular pipe, the velocity at R/2 (midway between the wall…

A: Given : The velocity at r from the center line, V r =13 m/s here, r=R/2

Q: Water is to be withdrawn from an 11.2-m-high water reservoir by drilling a 4.1-cm-diameter hole at…

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Q: Consider laminar flow through a very long straight section of a round pipe, with parabolic velocity…

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Q: HW Pressure Drop in a Pipe Water at 60°C is flowing by pump in a 0.0015-m-diameter 0.5-m-long pipe…

A: Given: T= 60o C Pipe diameter, d=0.0015 m length of the pipe, L=0.5 m average velocity, v=0.5 m/s…

Q: A 3.5 m-diameter tank is initially filled with water 2.25 m above the center of a sharp-edged…

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Q: Air enters a 25-cm-diameter 12-m-long underwater duct at 50°C and 1 atm at a mean velocity of 7 m/s,…

A: Given data as per question Diameter of duct = 25 cm Length of the duct =12 m Velocity = 7 m/s Air…

Q: b) What is adverse pressure gradient? Where does it happen and what are the consequences?

A: This type of phenomenon is called boundary layer separation where separation occurs because of a…

Q: water at 4-degree centigrade ( ρ=998 kg/m3 and μ=1.52 *10-3pa.s) is flowing steadily through a 3mm…

A: Given data:

Q: A 1.2-in-outer-diameter pipe is to span across a river at a 115-ft-wide section while being…

A: Given: The outer diameter of the pipe is D=1.2 in. The width of the river is W=115 ft. The average…

Q: What are the three layers within turbulent flow? In which layer is the velocity smallest and in…

A: The three layers within the turbulent flow are: 1. Wall layer - This is the layer near the boundary…

Q: Water at 10°C is flowing steadily in a 0.12 cm diameter, 15 m long horizontal pipe at an average…

A: For solution refer below images.

Q: A 3-m-diameter tank is initially filled with water 2 m above the center of a sharp-edged…

A: Given data

Q: The water at 20°C in a 10-m-diameter, 2-m-high aboveground swimming pool is to be emptied by…

A: Given Data: The temperature of water is T = 20°C. The diameter of pool is D = 10 m. The height of…

Q: In fully developed laminar flow in a circular pipe, the velocity at R/2 (midway between the wall…

A: Given data as per the question the velocity at R/2 = 11 m/s

Q: The components of an electronic system are located in a 1.8-m-long horizontal duct whose cross…

A: Given:- k=0.02717W/m.k Ts=65Tf=30 To find:- Total power rating of the electronic devices that can be…

Q: The components of an electronic system are located in a 1.5-m-long horizontal duct whose cross…

A: given data Length of the pipe L = 1.5m Cross section area of the duct = 0.2*0.2 m2  Temperature of…

Q: Oil at 20°C is flowing steadily through a 6-cmdiameter 33-m-long pipe. The pressures at the pipe…

A: The problem can be analysed using Bernaulli's principle and the maximum discharge is used to predict…

Q: Determine the Height of a chimney with a static draft of 12 mm if the losses total draft is 4 mm,…

A: given data as per question static draft =12 mm losses =4 mm Actual draft =12 - 4 =8 mm  Ambient air…

Q: Consider a person walking first in air and then in water at the same speed. For which motion will…

A: Calculate the Reynold number when person walking in air: Reair = VD/νair…… (1) Here, V is the…

Q: Is the sonic velocity in a specified medium a fixed quantity, or does it change as the properties of…

A: Given data Is the sonic velocity in a specified medium a fixed quantity, or does it change as the…

Q: Underground water is pumped through a 10-cm- diameter pipe that consists of a 2-m-long vertical and…

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Q: What are the factors that affect the value of Friction factor in Laminar flow and Turbulent flow?

A: There are some factors on which friction factor depends :

Q: In a geothermal power plant, the used geothermal water at 80°C enters a 15-cm-diameter and…

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Q: Oil flows in a 39-cm-diameter pipeline at an average velocity of 0.5 m/s. A 304-m-long section of…

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Q: A computer cooled by a fan contains eight printed circuit boards (PCBs), each dissipating 10 W of…

A: (a) Given, the bulk temperature of air should be assumed as 25°C. Therefore, write the values of…

Q: A house built on a riverside is to be cooled in summer by utilizing the cool water of the river. A…

A: The properties of air at 15 degrees Celsius are: The Reynolds number of the flow is thus, the flow…

Q: The water at 20°C in a 10-m-diameter, 2-m-high aboveground swimming pool is to be emptied by…

A: Write the properties of water at 20°C. Write the value of the roughness of the pipe.

Q: certain part of cast iron piping of a water distribution system involves a parallel section. Both…

A: Given: Diameter of both parallel cast iron pipe is 30 cm and the flow is turbulent. Length of the…

Q: Air at 20°C enters a heated circular tube with a diameter of 30 mm and a length of 3 m. The mass…

A: for answers apply heat balance.for solution refer below images.

Q: Heated air at 1 atm and 35°C is to be transported in a 150-meter long circular plastic duct at a…

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Q: A 1.2-in-outer-diameter pipe is to span across a river at a 140-ft-wide section while being…

A: Given data as per question Diameter of pipe =1.2 in Flow velocity = 10ft/s

Q: Hot carbon dioxide exhaust gas at 1 atm is being cooled by flat plates. The gas at 220oC flows in…

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Q: Consider air flow in a 25-cm-diameter pipe at a high velocity so that the Reynolds number is very…

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Q: Air enters a 10-m-long section of a rectangular duct of cross section 15 cm * 20 cm made of…

A: Calculating hydraulic diameter of the duct,

Q: The components of an electronic system are located in a 1.8-m-long horizontal duct whose cross…

A: Given:- Ts=65 T∞=30 k=0.02717W/m.k v=1.744*10-5m2/s Pr=0.72345 V=200m/min D=20cm To Find:- The total…

Q: A plate with negligible thickness of 50 cm and a length of 100 cm is exposed to 2 different air…

A: Given dataWidth of the plate t = 50cm = 0.5mLength of the plate L = 100cm = 1mSpeed of air flowing…

Q: The local atmospheric pressure in Denver, Colorado (elevation 1610 m), is 83.4 kPa. Air at this…

A: The elevation of Denver, H = 1610 m The pressure in Denver, P = 83.4 kPa The atmospheric temperature…

Q: Electric power is to be generated by installing a hydraulic turbine–generator at a site 110 m below…

A: Given data The height of free surface water from the turbine is h=110 m. The mass flow rate is…

Q: Water flows in a 15-cm-diameter pipe at a velocity of 1.8 m/s. If the head loss along the pipe is…

A: In this question, the pumping power required to overcome the head loss P=mgh here, m is the mass…

Q: Consider fully developed flow in a circular pipe with negligible entrance effects. If the length of…

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Q: A vented tanker is to be filled with fuel oil with ? =  920  kg/m3 and ? = 0.045 kg/m·s from an…

A: Given Data The density of the oil is: ρ=920 kg/m3 The viscosity is: μ=0.045 kg/m·s Length of the…

Q: Consider an air solar collector that is 1 m wide and 5 m long and has a constant spacing of 3 cm…

A: Given:w=1 ml=5 mb=3 cm =0.03 mTi=30°CQ=0.15 m3/sTavg g=20°CTavg c=60°C

Q: The local atmospheric pressure in Denver, Colorado (elevation 1610 m), is 83.4 kPa. Air at this…

A: (a) The average temperature is written as, The properties of air at this temperature are given as,…

Q: A square duct having D=23-cm and surface temperature T=70°C is located horizontally in an attic…

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Q: Air at 1atm, 35 degree celcius (ρ = 1.145 kg/m3 and μ = 1.895 x 10-5 kg/m.s) and average velocity of…

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Q: Air is heated in a 4cm×4cm sheet metal duct with a uniform surface heat flux of 590 W/m2. The mean…

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