Fluid Dynamics and Viscosity

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Questions and Answers

Wat wurdt bedoelt mei 'fluid dynamics'?

De stabiliteit fan fêste foarmen ûnder druk

De ynfloed fan ljocht op fluids

De studie fan still ferhâldingen yn fêste stoffen

De beweging fan fluids en de krêften dy't der op ynfloed binne (correct)

Fluid dynamics hat gjin ynfloed op de ûntwikkeling fan technology.

False

Neam in gebiet dêr't fluid dynamics wichtich foar is.

Aerodynamika

De studie fan de beweging fan fluids wurdt neamd _________.

fluid dynamics Signup and view all the answers

Fergelyk de folgjende termen mei harren oantsjuttings:

Hydrodynamics = Beweging fan fluids yn wetter Aerodynamics = Beweging fan fluids yn lûd of lucht Fluid statics = De krêften yn stillende fluids Viscosity = De wrykhokte fan in fluid fan beweging Signup and view all the answers

Wat is de wichtichste fokus fan fluid dynamics?

De analyze fan gas- en floeistofstreamingen Signup and view all the answers

Fluid dynamics is allinnich fan tapassing yn 'e natuerkunde.

False Signup and view all the answers

Wat binne de twa soarten fluids dy't yn fluid dynamics bestudearre wurde?

Gassen en floeistoffen Signup and view all the answers

De wet fan ______ beskriuwt de relaasje tusken druk, hast, en volumint yn in gas.

Boyle Signup and view all the answers

Ferekkenje de termen yn 'e fluid dynamics mei de juste definysjes:

Bernoulli's Principe = Ferklearret hoe't de druk yn in fluid feroaret as de snelheid feroaret Hydrostatika = Bestudearret fluids yn resting steat Viskositeit = Tawijde fan in fluid om te fliejen Reynolds Number = Farwei fan turbulent yn fluid beweging Signup and view all the answers

Wêr wurdt hydrostatika meast foar brûkt?

Undersykje fan fluids dy't yn in statyske steat binne Signup and view all the answers

Reynolds Number is allinnich relevant foar gassen.

False Signup and view all the answers

Wat is it doel fan Bernoulli's Principe?

Om de ferhâldingen tusken druk en snelheid yn in fluid te beskriuwen. Signup and view all the answers

Wat is de wichtichste tema fan dit haadstik?

Fluiddynamika Signup and view all the answers

Fluiddynamika omfettet allinnich gassen en gjin liquids.

False Signup and view all the answers

Wat is in wichtich prinsipe yn fluiddynamika?

Bernoulli's prinsipe Signup and view all the answers

De wetten fan __________ beskreauwe de beweging fan fluids.

Navier-Stokes Signup and view all the answers

Match de folgjende termen mei harren definysjes:

Viscosity = De tsjinslach fan in fluid tsjin beweging Turbulence = Onregelmatige beweging fan fluids Streamline = In pad fan in fluid dieltsje Pressure = Krêft per ienheid fan flak Signup and view all the answers

Wat nimt de preem fan snelheid yn fluiddynamika?

In tanimmende snelheid betsjut minder druk. Signup and view all the answers

Fluiddynamika hat gjin tapassing yn de medisinen.

False Signup and view all the answers

Fluids dy't net reitsje binne __________.

incompressible Signup and view all the answers

Study Notes

Fluid Dynamics

A fluid is a substance that can flow. This includes liquids and gases.
Fluid statics is the study of fluids at rest. It's based on Newton's first and third laws.
Fluid dynamics is the study of fluids in motion. This is often more complex than fluid statics.

Viscosity

Definition: Viscosity is the internal frictional effect between different layers of a flowing fluid. It describes how much force is needed to move one layer over another.
Explanation: Substances like thick tar and honey have high viscosity, and substances like water have low viscosity. Viscosity means that a force is needed to move an object through a fluid.

Drag Force

An object moving through a fluid experiences a retarding force called drag force.
Drag force increases as the speed of the object increases.

Stoke's Law

The drag force (F) on a sphere moving slowly through a viscous fluid with viscosity η is given by Stoke's Law: F = 6πηrv, where r is the radius of the sphere, and v is the speed of the sphere.

Terminal Velocity

Definition: Terminal velocity is the constant velocity of an object falling through a fluid when the drag force equals the weight of the object.
The object's speed is no longer accelerating and becomes constant.

Ideal Fluid

An ideal fluid is a fluid that has no viscosity, is incompressible and its motion is steady.

Equation of Continuity

In steady flow, the mass flow rate remains constant. The product of the fluid's area and its velocity at any given point will remain constant. Therefore, the product of the cross-sectional area and the velocity will remain constant in a pipe system.

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Description

Dit kwis giet oer fluid dynamics, in ûnderdiel fan de fysika dy't de beweging fan fluids bestudearret. Wy sille yngean op begrippen lykas viscositeit en drag force, en hoe't se ynfloed hawwe op objekten dy't troch fluids bewege. Sjoch benammen nei Stoke's Wet om de gravitational forces te begripen.