the pressure rise, across a pump can be expressed as where D is the impeller diameter, p, is the fluid density, w is the rotational speed, adn q is the flowrate. determine a suitable set of dimensionless parameters

Answers

Answer 1

Answer:

hello your question is incomplete below is the complete question

The pressure rise Δp across a pump can be expressed as Δp = f(D, p, w, Q) where D is the impeller diameter, p is the fluid density, w is the rotational speed, and Q is the flowrate. determine a suitable set of dimensionless parameters

answer : Δp / D^2pw^2 = Ф (Q / D^3w )

Explanation:

k ( number of variables ) = 5

r ( number of reference dimensions ) = 3

applying the pi theorem

hence the number of pi terms = k - r = 5 - 3 = 2

The Pressure Rise, Across A Pump Can Be Expressed As Where D Is The Impeller Diameter, P, Is The Fluid
The Pressure Rise, Across A Pump Can Be Expressed As Where D Is The Impeller Diameter, P, Is The Fluid

Related Questions

A spherical Gaussian surface of radius R is situated in space along with both conducting and insulating charged objects. The net electric flux through the Gaussian surface is:______

Answers

Answer:

Ф = [tex]\frac{Q}{e_{0} } [ \frac{\frac{4\pi }{3 }(R)^3 }{\frac{4}{3}\pi (R)^3 } ][/tex]

Explanation:

Radius of Gaussian surface = R

Charge in the Sphere ( Gaussian surface ) = Q

lets take the radius of the sphere to be equal to radius of the Gaussian surface i.e. R

To determine the net electric flux through the Gaussian surface

we have to apply Gauci law

Ф = 4[tex]\pi r^2 E[/tex]

Ф = [tex]\frac{Q_{enc} |}{e_{0} }[/tex]

    = [tex]\frac{Q}{e_{0} } [ \frac{\frac{4\pi }{3 }(R)^3 }{\frac{4}{3}\pi (R)^3 } ][/tex]

Describe how the fracture behavior would be different for a fiber-reinforced tape such as duct tape.

Answers

Answer:

A Normal tape is very weak under  tensile force and when a small fracture is caused, it will affect the whole tape and the tape will fail easily. while a fiber-reinforced tape will not fail easily under same stress and this is the major advantage of a fiber-reinforced tape has over a normal tape

Explanation:

The fracture behavior would be different for a fiber-reinforced tape in the following way :

* It's behavior during tensile stress and its fracture behavior.

A Normal tape is very weak under  tensile force and when a small fracture is caused, it will affect the whole tape and the tape will fail easily. while a fiber-reinforced tape will not fail easily under same stress and this is the major advantage of a fiber-reinforced tape has over a normal tape

1. Consider a solid cube of dimensions 1ft x 1ft x 1ft (=0.305m x 0.305m x 0.305m). Its top surface is 10
ft (=3.05 m) below the surface of the water. The density of water is pf=1000 kg/m3.
Consider two cases:
a) The cube is made of cork (pB=160.2 kg/m3)
b) The cube is made of steel (pB=7849 kg/m3)
In what direction does the body tend to move?​

Answers

Answer:

  a) up

  b) down

Explanation:

When the cube is less dense than water, it will tend to float (move upward). When it is more dense, it will sink (move downward).

a) 160.2 kg/m^3 < 1000 kg/m^3. The cube will move up.

__

b) 7849 kg/m^3 > 1000 kg/m^3. The cube will move down.

Quadrilateral ABCD is a rectangle.
If m ZADB = 7k + 60 and mZCDB = -5k + 40, find mZCBD.

Answers

Hope this helps...........


A 550 kJ of heat quantity needed to increase water temperature from 32°C to 80°C. Calculate the mass
of the water when the specific heat capacity of water is 4200 J/kg °C.​

Answers

Answer:

  2.728 kg

Explanation:

The units help you keep the calculation straight.

  [tex]\dfrac{550\text{ kJ}}{(80^\circ\text{C}-32^\circ\text{C})(4.200\text{ kJ/kg\,$^\circ$C})}=\dfrac{550}{48\cdot4.2}\text{ kg}\approx\boxed{2.728\text{ kg}}[/tex]

Liquid water at 300 kPa and 20°C is heated in a chamber by mixing it with superheated steam at 300 kPa and 300°C. Cold water enters the chamber at a rate of 2.6 kg/s. If the mixture leaves the mixing chamber at 60°C.

Required:
Determine the mass flow rate of the superheated steam required.

Answers

Answer:

0.154kg/s

Explanation:

From this question we have the following information:

P1 = 300kpa

T1 = 20⁰c

M1 = 2.6kg/s

For superheated system

P2 = 300kpa

T2 = 300⁰c

M2 = ??

T2 = 60⁰c

From saturated water table

h1 = 83.91kj/kg

h3 = 251.18kj/kg

From superheated water,

h2 = 3069.6kj/kg

The equation of energy balance

m1h1 + m2h2 = m3h3

When we input all the corresponding values:

We get

m2 = -434.902/-2818.42

m2 = 0.15430

m2 = 0.154kg/s

This is the mass flow rate of the superheated steam

Please check attachment for more detailed explanation.

thank you!

This question involves the concepts of energy balance and mass flow rate.

The mass flow rate of the superheated steam required is "0.15 kg/s".

Applying the energy balance in this situation, we get:

[tex]m_1h_1+m_2h_2=m_3h_3[/tex]

where,

m₁ = mass flow rate of liquid water at 300 KPa and 200°C = 2.6 kg/s

m₂ = mass flow rate of superheated at 300 KPa and 300°C = ?

h₁ = enthalpy of liquid water at 300 KPa and 200°C = 83.91 KJ/kg (from saturated steam table)

h₂ = enthalpy of superheated at 300 KPa and 300°C = 3069.6 KJ/kg (from superheated steam table)

h₃ = enthalpy of exiting fluid at 60°C = 251.18 KJ/kg (from saturated steam table)

m₃ = mass flow rate of exiting fluid = 2.6 kg/s + m₂

Therefore,

[tex](2.6\ kg/s)(83.91\ KJ/kg)+(m_2)(3069.6\ KJ/kg)=(2.6\ kg/s+m_2)(251.18\ KJ/kg)\\m_2(3069.6\ KJ/kg-251.18\ KJ/kg)=(2.6\ kg/s)(251.18\ KJ/kg-83.91\ KJ/kg)\\\\m_2=\frac{434.902\ KW}{2818.42\ KJ/kg}[/tex]

m₂ = 0.15 kg/s

Learn more about energy balance here:

https://brainly.com/question/9839609?referrer=searchResults

Match the use of the magnetic field to its respective description.​

Answers

oooExplanation:

oooooooooooooooo

A differential amplifier is to have a voltage gain of 100. What will be the feedback resistance required if the input resistances are both 1 kΩ?

Answers

Answer:

required feedback resistance ( R2 ) = 100 k Ω

Explanation:

Given data :

Voltage gain = 100

input resistance ( R1 ) = 1 k ohms

calculate feedback resistance required

voltage gain of differential amplifier

[tex]\frac{Vout}{V2 - V1 } = \frac{R2}{R1}[/tex]

= Voltage gain =  R2/R1

= 100 = R2/1

hence required feedback resistance ( R2 ) = 100 k Ω

Other Questions
The amplitude of a wave is related to the energy of a wave. How could you demonstrate this relationship between energy and wave HELP PLZZZ i need it plz how do the respiratory and circulatory systems work together to maintain homeostasis PLEASE PLEASE PLEASE HELP I WILL GIVE XTRA POINTS AND BRAINALIST TO FIRST PERSON When the stock has completed simmering and properly strained, it shouldbe:O Immediately placed in the fridgeO Brought to a full boilO Cooled quickly in a cold water bath and stored in a covered containerO None of the aboveBRAINLIEST AND 15 POINTS FOR ANSWERING CORRECTLY!!There is no more information for the question. Paco de Luca is a famous flamenco artist who plays the ______________. saxophone caja guitar flute I WILL MARK BRAINIEST Select all of the numbers that are greater than -5.1.) 1.32.) -63.) -124.) -15.) -4 I NEED HELL LIKE RIGHT NOW !!!Which equation represents the graph? i need help ASAP ill mark u a brainiest i need an answer thats it Select all equations that can result from adding these two equations or subtracting one from the other. x+y=12 3x-5y=4 PLZ HELP QUICK I WILL GIVE BRAINLYIEST PWEESE HELP LOOK AT THE IMAGE BELOW For every 2 hours, approximately $1,689 worth of product is sold to consumers. How much money will the company for an entire month (30 days)? Consider the flow of mercury (a liquid metal) in a tube. How will the hydrodynamic and thermal entry lengths compare if the flow is laminar days and nights occur on the earth due to dash Interest facts about the battle of the Alamo, will give brainiest! :) Martin correctly answered 90% of the questions on a math test that contained exactly 40 questions. How many of the questions did he answer incorrectly? explainA) 4B) 10C) 44D) 90 Which of the following BEST summarizes HOW Leakey affected Goodall?(A)Leakey believed Goodall was a patient person who loved animals. Leakey'steachings helped Goodall understand foundational elements of science thatprovided a basis for Goodall's own research.(B)Leakey was attracted to Goodall's lack of formal education and her love ofanimals. Leakey's leadership brought Goodall to Tanzania.(C)Leakey hired Goodall because he believed that she was open-minded andpatient. Leakey's guidance helped Goodall learn about chimpanzeeevolution.(D) Leaker took a chance on Goodall because of some qualities he saw in her.Leakey's mentorship allowed Goodall to discover the humanity in chimpanzees. John wants to make a triangular garden. Which of the following are possible dimensions? Match the definitions to the words by filling in the correct letter.a. mourn; express one's griefb. pay close attention toc. extremely large numberd. pay a cost or expensee. to ask earnestlyUse the word bank to answer the question.myriad