• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
24 Hour Fluid Requirement
24 Hour Fluid Requirement

... 24 Hour Fluid Requirement ...
Lecture Notes
Lecture Notes

DES601 - Hour 13
DES601 - Hour 13

... • In pressurized systems the potential energy is the sum of the pressure and elevation head. • In open channels, elevation is taken at the bottom of the channel, the analog to pressure is the flow ...
Lect15
Lect15

Compressor Design - FAMU-FSU College of Engineering
Compressor Design - FAMU-FSU College of Engineering

ppt
ppt

Technical Article Using fans in series and parallel - ebm
Technical Article Using fans in series and parallel - ebm

... fitted within an enclosure the fan is required to overcome the inherent airflow resistance. In order to achieve this the fan needs to produce a pressure increase which will in turn decrease the flow rate. A characteristic fan curve, as shown in Figure 2 (above), expresses the relationship between fl ...
the design of vortex induced vibration fluid kinetic energy harvesters
the design of vortex induced vibration fluid kinetic energy harvesters

Demonstration 1: Fluid Properties, Viscosity
Demonstration 1: Fluid Properties, Viscosity

Chapter 16 Study Guide
Chapter 16 Study Guide

Experiment: Bernoulli Equation applied to a Venturi Meter Purpose
Experiment: Bernoulli Equation applied to a Venturi Meter Purpose

Max`sNotes
Max`sNotes

The use of Maric Flow Controllers on Slurry Pump Gland Service
The use of Maric Flow Controllers on Slurry Pump Gland Service

2.空间等离子体
2.空间等离子体

... Turbulence 由一些随机过程产生;  湍流还是悬而未决的问题;  flows with high Reynolds numbers (>3000) usually become turbulent, while those with low Reynolds numbers usually remain laminar. ...
Volcanoes and Viscosity Student Worksheet
Volcanoes and Viscosity Student Worksheet

The amplification of a weak applied magnetic field by
The amplification of a weak applied magnetic field by

O-26: Assembling and Test of a Halbach Array Magnet
O-26: Assembling and Test of a Halbach Array Magnet

Float and coiled tubing
Float and coiled tubing

Current Electricity Homework (NAT5)
Current Electricity Homework (NAT5)

... “Lightning is the effect of static electricity build-up within a thunderstorm cloud system. It is a giant electrical spark that can have a peak current flow greater that 200,000 amperes during a period of a few microseconds. Thunder results from the sudden heating of the air to about 20,000°C by the ...
H2Go: The Untapped Power Source ASME Student Design
H2Go: The Untapped Power Source ASME Student Design

... Insert Picture of Device  As the bucket falls, the Kevlar line unwinds on the vehicle generating a rotating motion  The bucket falls and contacts the release mechanism rolling the vehicle forward  The vehicle touches the ground and rolls down the course ...
Two stream instability 1 Consider two beams of electrons, each with
Two stream instability 1 Consider two beams of electrons, each with

2 Mechanics of fluids at rest
2 Mechanics of fluids at rest

ent 257/4 fluid mechanics
ent 257/4 fluid mechanics

Continuity equation and Bernoulli`s equation
Continuity equation and Bernoulli`s equation

Emplacement of mafic lava flows: role of insulated transport and
Emplacement of mafic lava flows: role of insulated transport and

... The mechanisms of flow inflation and insulated transport are by and large not considered to feature in the emplacement of a’a. However, our recent studies on the ∼1150AD Kapelluhraun a’a flow field in SW-Iceland tell a different story. Kapelluhraun is an archetypical a’a flow with a distinct central ...
< 1 ... 32 33 34 35 36 37 38 39 40 ... 59 >

Turbulence



In fluid dynamics, turbulence or turbulent flow is a flow regime characterized by chaotic property changes. This includes low momentum diffusion, high momentum convection, and rapid variation of pressure and flow velocity in space and time.Flow in which the kinetic energy dies out due to the action of fluid molecular viscosity is called laminar flow. While there is no theorem relating the non-dimensional Reynolds number (Re) to turbulence, flows at Reynolds numbers larger than 5000 are typically (but not necessarily) turbulent, while those at low Reynolds numbers usually remain laminar. In Poiseuille flow, for example, turbulence can first be sustained if the Reynolds number is larger than a critical value of about 2040; moreover, the turbulence is generally interspersed with laminar flow until a larger Reynolds number of about 4000.In turbulent flow, unsteady vortices appear on many scales and interact with each other. Drag due to boundary layer skin friction increases. The structure and location of boundary layer separation often changes, sometimes resulting in a reduction of overall drag. Although laminar-turbulent transition is not governed by Reynolds number, the same transition occurs if the size of the object is gradually increased, or the viscosity of the fluid is decreased, or if the density of the fluid is increased. Nobel Laureate Richard Feynman described turbulence as ""the most important unsolved problem of classical physics.""
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report