Thinking Like an Engineer: An Active Learning Approach (4th Edition)
4th Edition
ISBN: 9780134639673
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 9, Problem 3ICA
Calculate the numerical value of each of the dimensionless parameters listed in the table. Be sure to check that the ratio is actually dimensionless after you insert the values.
| Situation | Name | Expression | Value | |
| (a) | Hot water | Prandtl number, Pr |
|
|
| (b) | Water in a river | Froude number, Fr |
|
| Property | Symbol | Units | Value |
| Dynamic viscosity | µ | kg/(m s) | 4×10–4 |
| Thermal conductivity | k | W/(m K) | 0.7 |
| Specific heat | Cp | cal/(g oC) | 1 |
| Water depth | H | m | 3 |
| Water speed | Vw | cm/s | 210 |
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
3. Consider the following equation. All three of the terms in parentheses are dimensionless groups.
Because kc is difficult to determine directly, the other variables are measured and kc is calculated
from the given equation.
26
THERMODYNAMICS 1
MODULE 1
FUNDAMENTAL CONCEPTS
]3 [ _d>vp_jo8
p DAB
kc D
= 0.023 [H
DAB
What is the estimated value of kc? What are the units of kc? Show your work.
The following values were measured:
D = 8.0 mm, DAB = 0.475 cm²/s, µ = 1.12 x 103 N-s/m², p = 1.00 x 10-³ g/cm³, v = 15.0 m/s.
A constant volume gas thermometer is used to determine the temperature of an unknown
fluid. Pressure data for thermometer in the unknown bath (P) and a Triple Point Cell (P)
are given below.
P[Torr]
100.0
P [Torr]
127.9
200.0
256.5
300.0
385.8
400.0
516.0
What is the temperature of the unknown fluid bath?
explain and show all work please and write
clearly
To understand the heat transfer from a bar in cross flow, you conduct a series of
experiments measuring the average heat transfer coefficient as a function of the free stream
velocity. A schematic of the experiment and the accompanying results are shown below.
L = 0.3 m
h [W/m²-K]
60
40
V [m/s]
20
15
a) You expect the important dimensionless parameters to be related by a function of
the form
Nu = CRe Pr
where C, m, and n are constants. The film temperature in both the experiments is
approximately the same. Use the given experimental results to determine the
constant m
b) Calculate h for L = 0.75 m and V = 30 m/s.
Chapter 9 Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Ch. 9.1 - The heat loss (Q/t, in units of joules per second...Ch. 9.2 - A simple expression for the velocity of molecules...Ch. 9.2 - What are the dimensions of the value 6 in the...Ch. 9.4 - The Euler number is a function of the pressure...Ch. 9 - Complete the following table. Dimensions ...Ch. 9 - Complete the following table. Dimensions ...Ch. 9 - Calculate the numerical value of each of the...Ch. 9 - Calculate the numerical value of each of the...Ch. 9 - A fluid with a specific gravity of 0.91 and a...Ch. 9 - Brine, with a density of 1.25 grams per cubic...
Ch. 9 - When a simple turbine is used for mixing, the...Ch. 9 - History suggests that Newton developed his idea...Ch. 9 - It is proposed to create a set of dimensionless...Ch. 9 - 1. While researching fluid dynamics, you come...Ch. 9 - 2. While researching fluid dynamics, you came...Ch. 9 - 3. While researching fluid dynamics, you come...Ch. 9 - 4. The Arrhenius number (Ar) is the dimensionless...Ch. 9 - 5. The Biot number (Bi) is the dimensionless...Ch. 9 - 6. A biodegradable fuel having a specific gravity...Ch. 9 - 7. A sludge mixture having a specific gravity of...Ch. 9 - 8. Water (specific gravity = 1.02; viscosity =...Ch. 9 - 9. We have been asked to determine a set of...Ch. 9 - 10. The Peclet number is used in heat transfer in...Ch. 9 - 11. When a fluid flows slowly across a flat plate...Ch. 9 - 12. In modeling the flow of liquid in a piping...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Solve it correctly please. I will rate accordinglyarrow_forward16000 1.440 14000 1.435 12000 1.430 10000 1.425 8000 1.420 6000 1.415 4000 1.410 2000 1.405 1.400 45 15 20 25 30 35 40 Temperature ["C] +dynamic viscosity (mPas] + density (gicm") Figure 1 (a) As shown in Figure 1, viscosity and density of honey was found to decrease with increase in temperature. Explain the reasons behind these phenomenon related to Fluid Mechanics in microscopic view. Dynamic viscolsty [mPa.s] Density [g/cm³]arrow_forwardCheck the following equation for dimensional homogeneity: mv = = 1.5² (Fcose) dt where m is mass, v is velocity, F is force, is an angle, and t is time. Check that each term in the equation has the following dimensions: [MªLbTC] where you are to choose the coefficients a, b, c. Answers: a = i b = i C=arrow_forward
- Pressure drop AP depends on four variables: the diameter of the pipe D, the density of the fluid p, the kinematic viscosity of the fluid v and the mean velocity v. Applying Buckinham's Pi Theorem, a dimensionless pi-group can be identified using the following power product: [AP] = [D]ª[p]b[v][v]ª. Which of the following statements in term of [T] is correct? Select one: O [T]: -2 = -c-d [T]: -1 = -c-d [T]: -2 = -c-2*d [T]: -2 = -2*c-d [T]: -2=-c+darrow_forwardPls do fast and nicely I'll rate and skip pls if u dont know but please dont report ಥ‿ಥarrow_forwardPlease do allarrow_forward
- 4:17 .l 86% google.com Water flows from point A to points D and E as shown. Some of the flow parameters are known, as shown in the table below. Determine the unknown parameters. Q1 V1 Q2 V2 D2 Qa V3 D3 D D: Q4 V4 A в D4 E Section Diameter [mm] | Flow rate [m³/s] Velocity [m/s] |AB BC 350 222 ??? 2?? Q3=2Q4 |Q«=0.5Q. 750 1.5 ??? 150 1.7 ??? CD СЕ C Chegg Visit Solved: Water Flows From Point A To Points D And E As Show ... Images may be subject to copyright. Learn more Related images O V tees f p A p Dd p E e ies ef pie de Gm t eeesnde pe the e be ple the er de e N d k hee may etheme4 Water fows fhem peint Ato pos Dand E as shon Sone of the flow parancters are knon, ashown in the able below Drenine he ukow paranem Sertan Dia r Phee rate Veleci jas LAB BC elect ja w y 150 ate K lo H- | Solved: Q3) Water Flows From Poi. chegg.com Solved: Quiz 2 Water Flows From P... TOTAL chegg.com Water flows theoagh a 150 m diameter horintal pipe at the steady ma flow rate of 60kg/s A meticn i fitted…arrow_forwardc) When small aerosol particles move through air or water, the Reynolds number is very small (Re < 1). Such flows are called creeping flow. The aerodynamic drag on an object in creeping flow is a function only of its speed, V some characteristic length scale, L of the object and fluid viscosity, µas indicated in Figure 11. Use dimensional analysis to generate a relationship for Fp as a function of the independent variables. The dimensions of Fp are MLT2. FD L Figure 11arrow_forwardPlease answer all what is asked, aligned with honor code.arrow_forward
- Fill in blank hellarrow_forwardThe figure shows the normal force on a jumping person as measured using a force table. A: From the graph, determine the weight of the jumping person. B: What is the maximum net force on the jumping person during the jump phase? C: Approximate the average net force during the jumping phase.arrow_forwardThe power P required for operating a pump depends on the diameter of the pump D, the pressure rise Ap across the pump, the fluid density p, the fluid viscosity and the Theorem, and D, Q and p as the repeating variables, the dimensionless group associated with μ is given by volume flow rate Q through the pump. Using Buckingham's μDªQbpº. Determine the values of a, b and c. 1. [0.99, 1.01 2. [-1.01, 0.99 3. [-1.01, -0.99 a= b = C=arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Unit Conversion the Easy Way (Dimensional Analysis); Author: ketzbook;https://www.youtube.com/watch?v=HRe1mire4Gc;License: Standard YouTube License, CC-BY