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单词 poiseuille
释义

Poiseuillen.

Brit. /pwaˈzɔɪ/, /pwaˈzəːj/, U.S. /pwɑˈzɔɪ/, /pwɑˈzəi/, /ˈˌpwɑˈˌzeɪ/
Origin: From a proper name. Etymon: proper name Poiseuille.
Etymology: < the name of Jean-Louis-Marie Poiseuille (1799–1869), French physician and physiologist, who studied fluid flow.
Physics.
1. Poiseuille's formula n. (also Poiseuille formula) = Poiseuille's equation n. at sense 3.
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the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > laminar flow > specific > relation or equation
Poiseuille's formula1884
Poiseuille's law1884
Poiseuille's equation1906
1884 Philos. Trans. 1883 (Royal Soc.) 174 946 The discharge from the pipes agreed exactly with those given by Poiseuille's formula for capillary tubes.
1906 Bot. Gaz. 42 152 The flow of water through open vessels is in accord with Poiseuille's formula deduced from flow through rigid tubes.
1948 Proc. Royal Soc. A. 194 256 It is of interest to re-examine the derivation of Poiseuille's formula for the steady flow of a quantum liquid in a capillary.
1997 Science (Nexis) 4 Apr. 122 The viscous resistance of a single tube is given by the well-known Poiseuille formula.
2. Poiseuille's law n. (also Poiseuille law) the law relating the volume of fluid flowing per second through a long narrow cylinder under conditions of Poiseuille flow, the viscosity of the fluid, and the dimensions of the cylinder, expressed by Poiseuille's equation.
ΘΚΠ
the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > laminar flow > specific > relation or equation
Poiseuille's formula1884
Poiseuille's law1884
Poiseuille's equation1906
1884 Philos. Trans. 1883 (Royal Soc.) 174 981 With all the smaller tubes Poiseuille's law held throughout his experiments.
1915 Proc. Royal Soc. B. 89 135 Solutions diffusing through copper ferrocyanide and other membranes obey Poiseuille's law.
1958 E. U. Condon & H. Odishaw Handbk. Physics v. vi. 78/1 Viscous, laminar flow of gases through cylindrical tubes is governed by Poiseuille's law.
1975 Jrnl. Surg. Res. 19 26/1 The resistance of varying degrees of obstruction placed within the circumflex coronary artery was determined by employing Poiseuille's Law.
2003 Chest (Nexis) 1 Mar. 882 Theoretical calculations for surface tension and surface age can be derived from algorithms based on the Poiseuille Law.
3. Poiseuille's equation n. (also Poiseuille equation) an equation expressing the relation between the volume V of fluid flowing per second through a long narrow cylinder under conditions of Poiseuille flow, the viscosity of the fluid, and the dimensions of the cylinder, namely V = πr4p/8ηl, where p is the difference in pressure between the ends of the cylinder, η is the viscosity of the fluid, l is the length of the cylinder, and r is its radius.
ΘΚΠ
the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > laminar flow > specific > relation or equation
Poiseuille's formula1884
Poiseuille's law1884
Poiseuille's equation1906
1906 Jrnl. Physical Chem. 10 674 The movement of water through a capillary tube is accurately described by..an equation derivable from Poiseuille's equation by making the assumption that the acceleration is negligible in comparison with the velocity.
1931 G. Barr Monogr. Viscometry ii. 24 Let the viscosity..calculated from an experiment by means of the uncorrected Poiseuille equation be denoted by η′.
1967 D. Margerison & G. C. East Introd. Polymer Chem. ii. 103 In these viscometers the time taken for the level of solvent or solution to pass between two fixed marks is determined and this is related to the viscosity by Poiseuille's equation.
1974 V. B. Mountcastle et al. Med. Physiol. (ed. 13) II. xxxvi. 926/1 The Womersley equations..relating oscillatory pressure and flow when both are expressed as Fourier series have the same general form as the Poiseuille equation.
2001 Brit. Plastics & Rubber (Nexis) 1 Feb. 6 The Poiseuille equations of flow require the wall velocity to be zero.
4. Poiseuille flow n. (also Poiseuille's flow) laminar or streamline flow of a viscous fluid of negligible compressibility, esp. through a long narrow cylinder.
ΘΚΠ
the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > laminar flow > specific
Poiseuille flow1936
1936 Chem. Rev. 18 415 The vertical velocity has a parabolic distribution across the capillary in accordance with Poiseuille flow.
1946 Q. Appl. Math. 3 119 The Poiseuille flow in a circular pipe was studied..with a conclusion of stability.
1974 V. B. Mountcastle et al. Med. Physiol. (ed. 13) I. i. 11/2 Osmotic water flows through pores in the same way that water flows through small tubes (Poiseuille's flow).
1992 New Scientist 25 Jan. 40/2 Another kind of flow is a type of shear flow, called Poiseuille flow, when a fluid streams through a tube at a constant flow rate.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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n.1884
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