Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Poiseuilles law


Related Topics

In the News (Fri 1 Jan 10)

  
  Poiseuille's law - Wikipedia, the free encyclopedia
The law can be derived from the Darcy-Weisbach equation, developed in the field of hydraulics and which is otherwise valid for all types of flow, and also expressed in the form:
The theoretical derivation of slightly different Poiseuille's original form of the law was made independently by Wiedman in 1856 and Neumann and E. Hagenbach in 1858 (1859, 1860).
The Poiseuilles' law was later in 1891 extended to turbulent flow by L. Wilberforce, based on Hagenbach's work.
en.wikipedia.org /wiki/Poiseuille's_law   (445 words)

  
 Poiseuille's law - LearnThis.Info Enclyclopedia   (Site not responding. Last check: 2007-10-13)
In this form the law approximates the friction factor, the energy (head) loss factor, friction loss factor or Darcy (friction) factor Λ in the laminar flow at very low velocities in cylindrical tube.
The law is also very important specially in hemorheology and hemodynamics, both fields of physiology.
Poiseuille's law corresponds to the Ohm's law for electrical circuits, where pressure drop Δp
encyclopedia.learnthis.info /p/po/poiseuille_s_law.html   (359 words)

  
 Poiseuille's law: Facts and details from Encyclopedia Topic   (Site not responding. Last check: 2007-10-13)
The Poiseuille's law (or the Hagen-Poiseuille law also named after Gotthilf Heinrich Ludwig Hagen Gotthilf heinrich ludwig hagen (march 3, 1797 - february 3, 1884) was a german physicist and hydraulic engineer....
In this form the law approximates the friction factor The darcy friction factor is a dimensionless number used in internal flow calculations....
The law is also very important specially in hemorheology "hemodynamics is concerned with the forces generated by the heart and the motion of blood through the cardiovascular system....
www.absoluteastronomy.com /p/poiseuilles_law   (1232 words)

  
 Poiseuille Law   (Site not responding. Last check: 2007-10-13)
For a tube of radius r and length l, the flux is given by:
For a fracture, with smooth border, saturated with a given fluid of viscosity
For a fracture of width a, aperture l and length L, the flux is given by:
www.bondy.ird.fr /~delerue/leuven/poiseuille.html   (120 words)

  
 PHYSICS   (Site not responding. Last check: 2007-10-13)
State and discuss the Universal law of Gravitation and discuss the measurement of the Universal Gravitational constant.
State the zeroth law of thermodynamics and establish the law as the basis for defining temperature.
State the zeroth law of thermodynamics and establish the law as a means of defining temperature.
www.accd.edu /spc/natsci/Physics/PHYSSYLL98_2005.htm   (2538 words)

  
 Enhanced tolerance of high-p plants to environmental stresses is related to primary root diameter and potential root ...
In this study we aim to examine whether increased root thickness and/ or changes in xylem diameter and density of primary roots can explain the beneficial effects of high P levels on tolerance of plants to environmental stresses.
Key measurements were made of the biomass, water uptake, leaf area and leaf expansion rate, thickness of basal primary roots, size and density of xylem vessels (as noted from the cross section of the thickest nodal root for white clover and wheat, or the tap root for cotton).
The potential hydraulic conductance of basal primary roots was estimated from the mean diameter and mean number of xylem vessels in the primary roots (Hagen-Poiseuilles law) (7).
www.regional.org.au /au/asa/2003/c/6/singh.htm   (1533 words)

  
 Database error - TheBestLinks.com - Poiseuille's Law, Current (electricity), Physiology, Velocity, ...   (Site not responding. Last check: 2007-10-13)
Poiseuille's Law, Poiseuille's law, Current (electricity), Physiology, Velocity...
This could be because of an illegal search query (see Searching TheBestLinks.com), or it may indicate a bug in the software.
You can add this article to your own "watchlist" and receive e-mail notification about all changes in this page.
www.thebestlinks.com /Poiseuille__27__s_Law.html   (59 words)

  
 Medical Course Booklets
· familiar with the physical laws that apply to the flow of blood through blood vessels.
Although it is NOT expected that at this stage the full range of clinical uses of the ECG are learned, it is useful to have studied and understood the appearance of 4 or 5 of the simpler and common arrhythmias.
· the application of Henry’s Law to CO and the importance of dissolved CO in blood;
www.cf.ac.uk /medicine/s_p_booklets/year1/finalcvr1.htm   (2755 words)

  
 Blood flow: Facts and details from Encyclopedia Topic   (Site not responding. Last check: 2007-10-13)
It is described by the Ohm's law[Click link for more facts about this topic] and approximately by Hagen-Poiseuille's law The poiseuilles law (or the hagen-poiseuille law also named after gotthilf heinrich ludwig hagen (1797-1884) for his experiments in 1839) is the physical law concerning the voluminal laminar...
The upper equation is Ohm's law, you get the Hagen-Poiseuille's law if you insert the lower in it (it is also written in its own article, see link above):
In the last equation it is important to note that blood flow changes with the fourth power with change of radius.
www.absoluteastronomy.com /b/blood_flow   (775 words)

  
 ► » Basic Fluid Flow Question   (Site not responding. Last check: 2007-10-13)
We are working with Poiseuilles equation, Torricelli's law for fluids,
Bernouilli's equation, and another equation that I can't place.
Because of the shear the flow has non-zero vorticity and together
www.physics-talk.com /Basic-Fluid-Flow-Question-6938446.html   (580 words)

  
 Viscosity - Advanced Physics Forums
And BTW could you suggest from where should i read up viscosity as the book from which i read it only contained.
F = -nAdv/dz, this formula,poiseuilles law, stokes law and reynolds no., the last three which i think cant be applied in the problem.
In the Irodov book the question is power developed by the viscous forces
www.advancedphysics.org /forum/showthread.php?t=686   (159 words)

  
 ANI PHYSIOLOGY Hangman
T/F-ACCORDING TO POISEUILLES LAW, THE FLOW OF BLOOD IS INVERSELY RELATED TO ITS VISCOSITY  
WHICH GAS LAW IS USED TO DETERMINE THE AMOUNT OF GAS DISSOLVED IN WATER  
T/F-ACCORDING TO POUSILLES LAW, THE FLOW OF BLOOD IS PROPORTIONAL TO THE SQUARE OF THE ARDIUS OF A VESSEL  
www.studystack.com /hangman-16839   (1506 words)

  
 U.W.A. 2nd YEAR BIOPHYSICS COURSES
Viscosity, continuity, Poiseuilles equation, (Newtonian fluids: parabolic velocity profile) Bernouilli's equation, Navier-Stokes equations, Reynold's number (laminar & turbulent flow)
Application of Poiseuilles equation to the study of bifurcation in an artery
Diffusion potential, Fick's laws, active and passive transport
www.biophysics.uwa.edu.au /bio20x.htm   (952 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.