100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Solutions Manual Chemical Engineering Fluid Mechanics 3rd Edition by Ron Darby $24.99   Add to cart

Exam (elaborations)

Solutions Manual Chemical Engineering Fluid Mechanics 3rd Edition by Ron Darby

1 review
 89 views  3 purchases
  • Course
  • Engineering Management
  • Institution
  • Engineering Management

Solultions For Chemical Engineering Fluid Mechanics 3rd Edition by Ron Darby, Raj P. Chhabra. ISBN: 9781032339771 Chemical Engineering Fluid Mechanics 3e solutions manual

Preview 4 out of 990  pages

  • January 16, 2024
  • 990
  • 2022/2023
  • Exam (elaborations)
  • Questions & answers
  • Engineering Management
  • Engineering Management

1  review

review-writer-avatar

By: neerajkandpal33 • 1 month ago

reply-writer-avatar

By: docusity • 3 weeks ago

Thank you so much for the positive rating

avatar-seller
docusity
SOLUTIONS MANUAL FOR
CHEMICAL
ENGINEERING FLUID
MECHANICS


by

Ron Darby
Raj P. Chhabra

, SOLUTIONS MANUAL FOR
CHEMICAL
ENGINEERING FLUID
MECHANICS


by
Ron Darby
Raj P. Chhabra

, Chapter 1


1-1 Write equations that define each of the following laws: Fick’s, Fourier’s, Newton’s, and
Ohm’s. What is the conserved quantity in each of these laws? Can you represent all of these
laws by one general expression? If so, does this mean that all of the processes represented by
these laws are always analogous? If they aren’t, why not?
Solution:
dCA  
(a) Fick: 1 − D: n Ay = -DAB , 3 − D : n A = -DAB∇CA
dy
d ( ρCv T ) dT  
Fourier: 1 − D : q y = -α = -k , 3- D : q = -k∇T
dy dy
k
α= = Thermal Diffusivity
ρCv

d ( ρv x )
Newton: 1 − D: (τ )
yx m = -ν
dy
dv
dy

(
= -µ x , 3- D: τ m = -µ ∇v + ( ∇v )
  +
)
ν = Kinematic viscosity
(3–D form is not analogous to other laws)
de  
Ohm: 1 − D : i y = -k e , 3- D : i = -k e∇e
dy
(b) What is the conserved quantity?


Fick: Mass of species A
Fourier: Heat
Newton: x-momentum
Ohm: Charge
dCQ
(c) General Expression: Q y = -k T applies to 1- D forms of all laws
dy
 
3 − D : Q = -k T ∇CQ applies to all except momentum

d) All but momentum equations are analogous. (in 3–D)




1

, 1-2 The general conservation law for any conserved quantity Q can be written in the form of
Eq. (1-12). We have said that this law can also be applied to ‘‘dollars’’ as the conserved
quantity Q. If the ‘‘system’’ is your bank account,
(a) Identify specific ‘‘rate in,’’ ‘‘rate out,’’ and ‘‘rate of accumulation’’ terms in this
equation relative to the system (i.e., each term corresponds to the rate at which dollars
are moving into or out of your account).
(b) Identify one or more ‘‘driving force’’ effects that are responsible for the magnitude of
each of these rate terms, i.e., things that influence how fast the dollars go in or out. Use
this to define corresponding ‘‘transport constants’’ for each ‘‘in’’ and ‘‘out’’ term
relative to the appropriate ‘‘driving force’’ for each term.


Solution:

Bank
Σ($)in Σ($)out




Balance:
 Rate of   Rate of   Rate of   Rate of 
∑  −  +  = 
 $in   $ out   Generation of $   Accumulation of $ 
 Rate of 
∑  = Paycheck + Gifts + Investment Income + ....
 $in 
 Rate of 
∑  = School + Rent + Food + Transport + Clothing + Entertainment + ...
 $ out 
 Rate of 
∑  Genetation of $  = Interest ( This can also be considered a "Rate in " term )
 
Rate of X = k x ⋅ ( DF ) x , DF = driving force

( DF )Paycheck ≅ k1 ( Education + Ingenuity + Experence + ...)
( DF )Gifts ≅ k 2 ( Generosity of Parents )
( DF)Investment ≅ k 3 ( Amount of Savings / Portfolio )

( DF )School ≅ k 4 ( Where + no. hours )
( DF)Rent ≅ k 5 (Size, Loation of Apt.)
( DF)Food ≅ k 6 ("Taste",e.g. Steak vs.Hamburger )

2

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller docusity. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $24.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

82013 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$24.99  3x  sold
  • (1)
  Add to cart