Consider laminar flow of a fluid through a square channel with smooth surfaces. Now the average velocity of the fluid is doubled. Determine the change in the head loss of the fluid. Assume the flow regime remains unchanged.

Q: In a circular pipe of diameter 1 ½ in. the flow is described by the equation u(r) = 1/2 (1 - r 2/R2…

A:

Q: Determine the loss of pressure in overcoming the friction in a coil through which water flows with a…

A:

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Q: Water is to be withdrawn from an 11.2-m-high water reservoir by drilling a 4.1-cm-diameter hole at…

A:

Q: Water at 40°C passes through 3.8-cm internal diameter copper tube at a rate of 800 L/s. Determine…

A: The value of the dynamic viscosity of the water at 40°C is: μ=0.653×10-3 Nsm2 The flow rate through…

Q: H.W: Determine the mean and maximum velocities for a fluid flow inside pipe -(1-) 2 according to the…

A:

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

A:

Q: 1- What is the relation between the head loss and the velocity for the straight pipe? 2- Can we…

A: 1. The relation between the head loss and the velocity for the straight pipe is given by…

Q: Q:- Prove that the angle of inclination of two fixed parallel plate as shown in fig, so that laminar…

A: Navier stokes equation for plane Poiseulli's flow is valid for this problem. Several assumptions…

Q: Someone claims that the shear stress at the center of a circular pipe during fully developed laminar…

A: This claim is true as the shear stress at the center of a circular pipe during fully developed…

Q: What is the operating principle of variable-area flowmeters (rotameters)? How do they compare to…

A: It consists of a vertical pipe, which is tapered downward. The  fluid flow passes from the bottom to…

Q: Two pipes of identical diameter and material are connected in parallel. The length of pipe A is four…

A: Given data as per the question length of pipe A = four times the length of pipe B

Q: Water is to be delivered from a reservoir through a pipe to a lower level and discharged into the…

A:

Q: What is steady flow and unsteady flow through an orifi

A: 1. Steady flow - The type of flow in orifice in which the fluid properties remain constant with time…

Q: w in

A: given: Why does the friction factor increase as the velocity decreases in a laminar flow in a pipe?

Q: Gasoline (? = 680 kg/m3 and ? = 4.29 × 10−7 m2/s) is transported at a rate of 240 L/s for a distance…

A:

Q: In the fully developed region of flow in a circular pipe, does the velocity profile change in the…

A: Let the fluid flowing through a tube. As the fluid flows through the tube boundary layer occurs. The…

Q: What is the generally accepted value of the Reynolds number above which the flow in smooth pipes is…

A:

Q: A fluid flows at 455 cubic meters per minute inside a rectangular duct, whose cross-section has a…

A:

Q: Q1 What is the Reynolds number? How is it defined for (a) flow in a circular pipe and (b) flow over…

A: This question is based on the concept of fluid mechanics.

Q: Consider two identical 2-m-high open tanks filled with water on top of a 1-m-high table. The…

A: The figure (a) shows the tank placed on table without hose open to atmosphere . The figure (b) shows…

Q: Two pipes of identical diameter and material are connected in parallel. The length of pipe A is five…

A: Given data: The length of the pipe A, LA = 5L. The length of the pipe B, LB = L. As both the pipe…

Q: If the head loss in an 8 km long cast iron pipe carrying water at a rate of 1.42 m^3/s is not to…

A:

Q: In order to drain the tank faster, a pump is installed near the tank exit. Determine how much power…

A:

Q: A piping system involves sharp turns, and thus large minor head losses. One way of reducing the head…

A: In a piping system, bends or elbows increases the loss of head. The sudden change in direction…

Q: Water is to be withdrawn from an 8-m-high water reservoir by drilling a 2.2-cm-diameter hole at the…

A: Using the energy equation,

Q: Q2/ Consider fully developed laminar flow in a circular pipe. If the diameter of the pipe is reduced…

A:

Q: For a laminar flow, the friction factor depends on Reynolds number and relative roughness…

A: The friction factor in laminar flow is given by- f=64Rewhere Re=Reynold's Number From above equation…

Q: Show that the Reynolds number for flow in a circular pipe of diameter D can be expressed as Re =…

A: Given, D is the diameter of the pipe. In the question due to some error, Re​=4m˙/(πDμ) is given as…

Q: Explain how flow rate is measured with a turbine flowmeter, and discuss how they compare to other…

A: For measuring flow rate we have many flow meter and one of them is Turbine flow meter. As from the…

Q: The turbines in a hydroelectric plant are fed by water falling from a 50 m height. Assuming 91%…

A:

Q: H.W: Determine the mean and maximum velocities for a fluid flow inside pipe 2 (1-) according to the…

A:

Q: Consider fully developed laminar flow in a circular pipe. If the diameter of the pipe is reduced by…

A:

Q: Explain why the momentum correction factor is smaller for a turbulent flow compared to a laminar…

A: Momentum correction factor: The moment across a section can be calculated based on actual velocity…

Q: A highly viscous liquid discharges from a large container through a small-diameter tube in laminar…

A: Write the expression of Reynold’s number. For laminar flow, write the expression of the friction…

Q: Someone claims that in fully developed turbulent flow in a pipe, the shear stress is a maximum at…

A: Yes agree with this claim

Q: In a fully developed laminar flow in circular pipe, what will happen to the head loss if the…

A:

Q: Someone claims that the volume flowrate in a circular pipe can be determined by measuring the…

A: The volume flowrate in a circular pipe can be determined by measuring the velocity at the centerline…

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

A:

Q: Log mean temperature difference in case of counter flow compared to parallel flow will be

A: First question Logarithmic mean temperature difference(LMTD) of counter flow heat exchanger is…

Q: Rainwater flows through the galvanized iron downspout shown in the figure below at a rate of 0.010…

A:

Q: Which has a greater minor loss coefficient during pipe flow: gradual expansion or gradual…

A: Which has a greater minor loss coefficient during pipe flow: gradual expansion or gradual…

Q: The local friction coefficients are higher in turbulent flow than they are in laminar flow because…

A:

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

A:

Q: 7. In fully turbulent region in a pipe flow when Reynolds number is too high the friction factor is…

A: For the Turbulent flow condition we are relating the Reynold number , friction factor and surface…

Q: Two pipes of identical diameter and material are connected in parallel. The length of pipe A be…

A:

Q: (a) Uniform (b) Parabolic (c) Linear (d) Linear

A: Ans(A) For incompressible flow velocity distribution is uniform , Since the flow is uniform and…

Q: Water is to be withdrawn from a 9-m-high water reservoir by drilling a 2.3-cm-diameter hole at the…

A: Given data as per question Height of water reservoir = 9m  Drilling hole diameter=  2.3-cm