New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

MECH 103 CH. 4 Notes

by: Notetaker

MECH 103 CH. 4 Notes MECH 103

User_88923_profile1563 Notetaker
Introduction to Mechanical Engineering
John S Petro

Almost Ready


These notes were just uploaded, and will be ready to view shortly.

Purchase these notes here, or revisit this page.

Either way, we'll remind you when they're ready :)

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

Here are the notes from chapter 4 - dimensionless numbers!
Introduction to Mechanical Engineering
John S Petro
Class Notes
Dimensionless number, mechanical engineering, chapter 4
25 ?




Popular in Introduction to Mechanical Engineering

Popular in Mechanical Engineering

This 1 page Class Notes was uploaded by Notetaker on Sunday October 4, 2015. The Class Notes belongs to MECH 103 at Colorado State University taught by John S Petro in Fall 2015. Since its upload, it has received 73 views. For similar materials see Introduction to Mechanical Engineering in Mechanical Engineering at Colorado State University.

Similar to MECH 103 at CSU

Popular in Mechanical Engineering


Reviews for MECH 103 CH. 4 Notes


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 10/04/15
o A dimension is a measureable physical idea it usually consists only of a word description with no numbers 0 A unit allow us to quantify a dimension to state a number describing how much of that dimension exists in a specific situation 0 Common dimensionless numbers 0 O O 0 Pi 0 Defined as the ratio of the circumference of a circle to its diameter 0 PiCDL1L1L0 Specific Gravity SG mvmv ML3 ML3 M L Mach number Ma 0 The ratio of the speed of the object compared with the speed of sound in the air 0 Ma speed of the objectspeed of sound in the air LTLT LOT0 Radian rad 0 Defined as the angle at the center of a circle formed by an arc S equal in length to the radius r of that circle 0 1 radianSr LL Lo Sin x o X x33 x55 x77 0 Law of arguments any function that can be computed using a series must show a dimensionless argument 0 Dimensional analysis 0 Dimensionless quantities are generated as a result of a process called dimensional analysis 0 Raleigh39s Method 0 A method of dimensional analysis 0 O O 0 Step 1 write each variable and raise each to an unknown exponent Step 2 substitute dimensions of the variables into step 1 Step 3 group by dimension Step 4 form a set of equations by setting the exponent groups from step 3 for each dimension equal to zero Step 5 solve the simultaneous equations 0 Numbers of unknowns number of equations number of groups you will have Step 6 substitute results of step 5 back into step 1 exponents Step 7 group variables by exponent 0 These resulting groups are your dimensionless numbers Step 8 be sure to check if all the ratios are dimensionless


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Anthony Lee UC Santa Barbara

"I bought an awesome study guide, which helped me get an A in my Math 34B class this quarter!"

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.