The Reynolds number (Re) helps predict flow patterns in different fluid flow situations by measuring the ratio between inertial and viscous forces. At low Reynolds numbers, flows tend to be dominated by laminar (sheet-like) flow, while at high Reynolds numbers flows tend to be turbulent. The turbulence results from differences in the fluid's speed and direction, which may sometimes intersect or even move counter to the overall direction of the flow (eddy currents). These eddy currents begin to churn the flow, using up energy in the process, which for liquids increases the chances of cavitation. Reynolds numbers are an important dimensionless quantity in fluid mechanics. The Reynolds number has wide applications, ranging from liquid flow in a pipe to the passage of air over an aircraft wing. It is used to predict the transition from laminar to turbulent flow and is used in the scaling of similar but different-sized flow situations, such as between an aircraft model in a wind tunnel and the full-size version. The predictions of the onset of turbulence and the ability to calculate scaling effects can be used to help predict fluid behavior on a larger scale, such as in local or global air or water movement, and thereby the associated meteorological and climatological effects. The concept was introduced by George Stokes in 1851, but the Reynolds number was named by Arnold Sommerfeld in 1908 after Osborne Reynolds (1842–1912), who popularized its use in 1883. (Wikipedia).
Ex: Determine a Number that is Less Than and Greater than Using a Specific Place Value
This video provides examples of how to find a number that is less than and greater than a given number using a specific place value. Search Video Library at http://www.mathispower4u.wordpress.com
From playlist Whole Numbers: Place Value and Writing Numbers
GCSE Maths: N4-05 [Prime Numbers]
https://www.buymeacoffee.com/TLMaths Navigate the playlist using this Google Doc: https://tinyurl.com/TLMathsGCSE Navigate all of my videos at https://sites.google.com/site/tlmaths314/ Like my Facebook Page: https://www.facebook.com/TLMaths-1943955188961592/ to keep updated Follow me o
From playlist GCSE Maths: N4
Different Types of Numbers on the number line, lesson 1 #shorts
Watch the full playlist: https://www.youtube.com/watch?v=kcxK3_sROZA&list=PL14bv5vXK2WWuODhGbpPQA0GamV5ohOVb&index=1 Natural Numbers (N), (also called positive integers, counting numbers, or natural numbers); They are the numbers {1, 2, 3, 4, 5, …} Whole Numbers (W). This is the set of na
From playlist Celebrities Teach Math: The Number System
Polynomials with Trigonometric Solutions (2 of 3: Substitute & solve)
More resources available at www.misterwootube.com
From playlist Using Complex Numbers
Imaginary numbers are any numbers that include the imaginary number i. A mix of imaginary and real numbers gives you what’s called a complex number. The primary reason we use imaginary numbers is to give us a way to find the root (radical) of a negative number. There’s no way to use real
From playlist Popular Questions
We discuss what imaginary numbers are and how they are part of the larger set of complex numbers in this free math video tutorial by Mario's Math Tutoring. This is a nice introduction to working with i. We also go through some examples. 0:26 A Hierarchy of Different Types of Numbers 1:03
From playlist Imaginary & Complex Numbers
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From playlist Number: Basic Arithmetic
An Exact Formula for the Primes: Willans' Formula
Formulas for the nth prime number actually exist! One was cleverly engineered in 1964 by C. P. Willans. But is it useful? ---------------- References: Herbert Wilf, What is an answer?, The American Mathematical Monthly 89 (1982) 289–292. https://doi.org/10.1080/00029890.1982.11995435 C
From playlist Cool stuff about primes
Second of three videos we're doing on Navier Stokes and related fluid stuff... featuring Tom Crawford. More links & stuff in full description below ↓↓↓ Playlist: http://bit.ly/NavierPlaylist Part 1 (Navier-Stokes): https://youtu.be/ERBVFcutl3M Part 3 (River Water): https://youtu.be/5mGh0r
From playlist Tom Crawford on Numberphile
Experiments/Liquid Metals by Cary Forest (Part 1)
GdR Dynamo 2015 PROGRAM LINK: www.icts.res.in/program/GDR2015 DATES : 01 Jun, 2015 - 12 Jun, 2015 VENUE : ICTS-TIFR, IISc campus, Bangalore DESCRIPTION : Dynamo or self-induced magnetic field generation in nature and laboratory is a very important area of research in physics, astrop
From playlist GdR Dynamo 2015
Features of vigorous turbulence in experiments by Greg Bewley
Turbulence from Angstroms to light years DATE:20 January 2018 to 25 January 2018 VENUE:Ramanujan Lecture Hall, ICTS, Bangalore The study of turbulent fluid flow has always been of immense scientific appeal to engineers, physicists and mathematicians because it plays an important role acr
From playlist Turbulence from Angstroms to light years
Flow Around a Cylinder | Deep Dive Maths
The fluid flow around an infinite cylinder has a simple geometry. An understanding of this flow can yield insights into the flow fields surrounding airplanes, submarines, buildings and bridges. What is the history of this problem? What do the steady solutions look like and how do the s
From playlist Deep Dive Maths
Status of experiments and simulations on scaling problems in turbulence - Katepalli Sreenivasan
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From playlist Mathematics
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Turbulence from Angstroms to light years DATE:20 January 2018 to 25 January 2018 VENUE:Ramanujan Lecture Hall, ICTS, Bangalore The study of turbulent fluid flow has always been of immense scientific appeal to engineers, physicists and mathematicians because it plays an important role acr
From playlist Turbulence from Angstroms to light years
Physics - Fluid Dynamics (3 of 25) Viscosity & Fluid Flow: Reynolds Number (Re)
Visit http://ilectureonline.com for more math and science lectures! In this video I will introduce Reynold's Numbers which changes with respect to conditions. Next video in this series can be seen at: https://youtu.be/3g4aN-oqaQc
From playlist PHYSICS 34 FLUID DYNAMICS
From CMB to circulation: the search for normal scaling (Lecture - 03) by Katepalli Raju Sreenivasan
Turbulence from Angstroms to light years DATE:20 January 2018 to 25 January 2018 VENUE:Ramanujan Lecture Hall, ICTS, Bangalore The study of turbulent fluid flow has always been of immense scientific appeal to engineers, physicists and mathematicians because it plays an important role acr
From playlist Infosys-ICTS Chandrasekhar Lectures
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MIT RES.10-S95 Physics of COVID-19 Transmission, Fall 2020 Instructor: Martin Z. Bazant View the complete course: https://ocw.mit.edu/RES-10-S95F20 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP62-vPzt_GMdZRflJPjNdspG Beyond the well-mixed room: Forced convection Lic
From playlist MIT RES.10-S95 Physics of COVID-19 Transmission, Fall 2020
Energy spectra of buoyancy driven 2D bubbly flows by Prasad Perlekar
Turbulence from Angstroms to light years DATE:20 January 2018 to 25 January 2018 VENUE:Ramanujan Lecture Hall, ICTS, Bangalore The study of turbulent fluid flow has always been of immense scientific appeal to engineers, physicists and mathematicians because it plays an important role acr
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Tutorial - What is an imaginary number
http://www.freemathvideos.com In this video playlist you will learn everything you need to know with complex and imaginary numbers
From playlist Complex Numbers