Homework Answers
In the critical and supercritical flow the velocity of the disturbance wave C• is equal to and less than a of stream V respectively.
So in critical flow disturbance wave does not travel at all.
In supercritical flow it can travel only d/s but not u/s.
So in critical and supercritical flow the d/s location are not in hydraulic communication with u/s locations.
So correct option is A. True
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lows describe the relati fluid acceleration. In critical and supercritical flows, downstream locations are not in...
Water flows steadily along a horizontal open channel of uniform width, over a broad-crested weir. The...
Water flows steadily along a horizontal open channel of uniform width, over a broad-crested weir. The channel bed upstream from the weir (to the left) is d -0.75m above the channel bed downstream from the weir (to the right), as shown in the figure below. The volume flow rate per unit width is Q 6m2 s-1, and the downstream depth of the water is ћ2-d. Take the magnitude of the acceleration due to gravity as g 10ms-2. d - 0.75...
2. Below is the phase diagram for CO2 Critical point Supercritical Liquid (31°C, 73 atm) fluid...
2. Below is the phase diagram for CO2 Critical point Supercritical Liquid (31°C, 73 atm) fluid Pressure, atm Triple point (-57°C, 5.1 atm) Sublimation point Gas at 1 atm (-78°C) - 100 -80 -60 0 20 40 60 -40 -20 Temperature, a) What phase transition occurs at P = 10.00 atm when CO2 is cooled from -10°C to -45°C? (2 pts) b) What phase transition occurs at T = -50°C when CO2 experiences a pressure change from 100 atm to...
A fluid flows past a circular cylinder of radius a with an upstream speed of Vo...
A fluid flows past a circular cylinder of radius a with an upstream speed of Vo as shown in the figure below. A more advanced theory indicates that if viscous effects are negligible, the velocity of the fluid along the surface of the cylinder is given by V = 2V sin 0 Determine the (a) streamline and (b) normal components of acceleration on the surface of the cylinder if Vo = 12 m/s, a = 10 m, and 0 =...
1. Which state of matter exhibits the fewest intermolecular forces? a. liquid b. supercritical fluid c....
1. Which state of matter exhibits the fewest intermolecular forces? a. liquid b. supercritical fluid c. gas d. solid 2. Which molecule has the highest boiling point? a. heptane (C7H16) b. pentane (C5H12) c. hexane (C6H14) d. octane (C8H18) 3. What is meant by the half-life of a reaction? Consider the below reaction. If the half-life of the reaction is 10 minutes and the [A] starts at 2 M, what will it's concentration be after 40 minutes? A + B...
Water flows in a 100 ft wide rectangular channel at flow rate = 300 ft3/sec
Water flows in a 100 ft wide rectangular channel at flow rate = 300 ft3/sec. Manning's n = 0.015 and the bottom slope = 0.002. Calculate/answer the following: a. the uniform (normal) flow depth assuming the channel is wide and shallow. b. the critical flow depth. c. the flow depth upstream of a hydraulic jump with downstream depth = normal depth. d. the type of channel slope at the given normal depth: mild, critical, or steep (select one). f. the basis for your answer in...
7. A fluid flows past a sphere with an upstream velocity of Vo = 40 m/s...
7. A fluid flows past a sphere with an upstream velocity of Vo = 40 m/s as shown in the figure below. From a more advanced theory, it is found that the speed of the fluid along the front part of the sphere is V = (3/2)Vo sin 0. 40° VO, - r oka (a) Determine the streamwise and normal components of the acceleration at point A if the radius of the sphere is a = 0.20 m. (b) Find...
5) Consider the phase diagram for carbon dioxide(10). Supercritical fluid Solid Liquid Pressure (atm) -78.5 -56.4...
5) Consider the phase diagram for carbon dioxide(10). Supercritical fluid Solid Liquid Pressure (atm) -78.5 -56.4 Temperature (°C)— a) What is the critical temperature for carbon dioxide? b) What is the critical pressure for carbon dioxide? c) What phase(s) is/are present at -10°C and 30 atm. d) What phase(s) is/are present at -60°C and 10 atm. - e) What phase(s) is/are present at-78.5°C and 1 atm. f) What phase(s) is/are present at-56.4°C and 5.11 atm. g) What is the normal...
3. An incompressible, viscous fluid with density, p, flows past a solid flat plate which has...
3. An incompressible, viscous fluid with density, p, flows past a solid flat plate which has a depth, b, into the page. The flow initially has a uniform velocity U., before contacting the plate. After contact with the plate at a distance x downstream from the leading edge, the flow velocity profile is altered due to the no-slip condition. The velocity profile at location x is approximated to have a linear shape, u = U. z for y s 8...
Problem 1 An incompressible, viscous fluid with density, p, flows past a solid flat plate which...
Problem 1 An incompressible, viscous fluid with density, p, flows past a solid flat plate which has a width, b, into the page. The flow initially has a uniform velocity U before contacting the plate. The velocity profile at location x is estimated to have a parabolic shape, u-u[(Y)-(,)21"for ysiand u-vfor y 20 where isthe boundary layer thickness. (a) Determine the upstream height from the plate, h, of a streamline which has a height, 6, at the downstream location, x....
EXPERIMENT 4 FLOW UNDER A SLUICE GATE AND THE HYDRAULIC JUMP 4.1 Introduction The sluice gate provides acenv...
EXPERIMENT 4 FLOW UNDER A SLUICE GATE AND THE HYDRAULIC JUMP 4.1 Introduction The sluice gate provides acenvenient means of flow regulation, especially in irrigation and drairage schemses where low has to be distributed in notworks of interconnected chanmels. The gane is peovided wih a lifting mechanis so at the aperture beeeath it may be set to any desired position When closed, the sperture is closed so that no Bow ca pass through the gale. In this experiment we measure...
Water flows steadily along a horizontal open channel of uniform width, over a broad-crested weir. The channel bed upstream from the weir (to the left) is d -0.75m above the channel bed downstream from the weir (to the right), as shown in the figure below. The volume flow rate per unit width is Q 6m2 s-1, and the downstream depth of the water is ћ2-d. Take the magnitude of the acceleration due to gravity as g 10ms-2. d - 0.75...
2. Below is the phase diagram for CO2 Critical point Supercritical Liquid (31°C, 73 atm) fluid Pressure, atm Triple point (-57°C, 5.1 atm) Sublimation point Gas at 1 atm (-78°C) - 100 -80 -60 0 20 40 60 -40 -20 Temperature, a) What phase transition occurs at P = 10.00 atm when CO2 is cooled from -10°C to -45°C? (2 pts) b) What phase transition occurs at T = -50°C when CO2 experiences a pressure change from 100 atm to...
A fluid flows past a circular cylinder of radius a with an upstream speed of Vo as shown in the figure below. A more advanced theory indicates that if viscous effects are negligible, the velocity of the fluid along the surface of the cylinder is given by V = 2V sin 0 Determine the (a) streamline and (b) normal components of acceleration on the surface of the cylinder if Vo = 12 m/s, a = 10 m, and 0 =...
7. A fluid flows past a sphere with an upstream velocity of Vo = 40 m/s as shown in the figure below. From a more advanced theory, it is found that the speed of the fluid along the front part of the sphere is V = (3/2)Vo sin 0. 40° VO, - r oka (a) Determine the streamwise and normal components of the acceleration at point A if the radius of the sphere is a = 0.20 m. (b) Find...
5) Consider the phase diagram for carbon dioxide(10). Supercritical fluid Solid Liquid Pressure (atm) -78.5 -56.4 Temperature (°C)— a) What is the critical temperature for carbon dioxide? b) What is the critical pressure for carbon dioxide? c) What phase(s) is/are present at -10°C and 30 atm. d) What phase(s) is/are present at -60°C and 10 atm. - e) What phase(s) is/are present at-78.5°C and 1 atm. f) What phase(s) is/are present at-56.4°C and 5.11 atm. g) What is the normal...
3. An incompressible, viscous fluid with density, p, flows past a solid flat plate which has a depth, b, into the page. The flow initially has a uniform velocity U., before contacting the plate. After contact with the plate at a distance x downstream from the leading edge, the flow velocity profile is altered due to the no-slip condition. The velocity profile at location x is approximated to have a linear shape, u = U. z for y s 8...
Problem 1 An incompressible, viscous fluid with density, p, flows past a solid flat plate which has a width, b, into the page. The flow initially has a uniform velocity U before contacting the plate. The velocity profile at location x is estimated to have a parabolic shape, u-u[(Y)-(,)21"for ysiand u-vfor y 20 where isthe boundary layer thickness. (a) Determine the upstream height from the plate, h, of a streamline which has a height, 6, at the downstream location, x....
EXPERIMENT 4 FLOW UNDER A SLUICE GATE AND THE HYDRAULIC JUMP 4.1 Introduction The sluice gate provides acenvenient means of flow regulation, especially in irrigation and drairage schemses where low has to be distributed in notworks of interconnected chanmels. The gane is peovided wih a lifting mechanis so at the aperture beeeath it may be set to any desired position When closed, the sperture is closed so that no Bow ca pass through the gale. In this experiment we measure...
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