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层流血液中的传输现象。

Transport phenomena in laminar flow of blood.

作者信息

Ahuja A S, Hendee W R, Carson P L

出版信息

Phys Med Biol. 1978 Sep;23(5):928-36. doi: 10.1088/0031-9155/23/5/009.

DOI:10.1088/0031-9155/23/5/009
PMID:715007
Abstract

Recently it has been shown experimentally that transport of heat and gas (specifically oxygen and helium) are augmented in the laminar flow of aqueous suspensions of polystyrene spheres 50 and 150 micrometer in diameter. In this report, data on heat and gas transport are correlated. Application of this correlation to flowing blood leads to the following conclucions. There is no significant augmentation of oxygen and heat transport in flowing blood even at shear rates much higher than physiological shear rates; an observation which is in accord with the experimental results. The augmentation of the diffusion coefficient of plasma proteins in flowing blood, though not very high, appears to be measurable. Of the total measured augmentation of about 6000--30 000% in platelet diffusivity in flowing blood, quoted from the literature, about 500% is attributable from this correlation to fluid mechanical forces, and the balance is hypothetically attributed to other forces (electrical or biochemical) present in blood.

摘要

最近实验表明,在直径为50和150微米的聚苯乙烯球体水悬浮液的层流中,热和气体(特别是氧气和氦气)的传输会增强。在本报告中,对热和气体传输的数据进行了关联。将这种关联应用于流动的血液会得出以下结论。即使在远高于生理剪切速率的剪切速率下,流动血液中的氧气和热传输也没有显著增强;这一观察结果与实验结果一致。流动血液中血浆蛋白扩散系数的增强虽然不是很高,但似乎是可测量的。从文献中引用的流动血液中血小板扩散率约6000 - 30000%的总测量增强中,约500%可归因于这种关联所导致的流体力学力,其余部分假设归因于血液中存在的其他力(电或生化力)。

相似文献

1
Transport phenomena in laminar flow of blood.层流血液中的传输现象。
Phys Med Biol. 1978 Sep;23(5):928-36. doi: 10.1088/0031-9155/23/5/009.
2
Transport phenomena in pulsating post-stenotic vortex flow in arteries. An interactive concept of fluid-dynamic, haemorheological and biochemical processes in white thrombus formation.
Nouv Rev Fr Hematol (1978). 1986;28(5):257-67.
3
Model of platelet transport in flowing blood with drift and diffusion terms.具有漂移和扩散项的流动血液中血小板运输模型。
Biophys J. 1991 Jul;60(1):53-69. doi: 10.1016/S0006-3495(91)82030-6.
4
An estimated shape function for drift in a platelet-transport model.血小板运输模型中漂移的估计形状函数。
Biophys J. 1994 Sep;67(3):1252-9. doi: 10.1016/S0006-3495(94)80595-8.
5
Anomalous oxygen uptake by flowing blood.流动血液对氧气的异常摄取。
Ann Biomed Eng. 1973 Dec;1(4):468-80. doi: 10.1007/BF02367270.
6
Effect of diffusion boundary layers on the initial uptake of O2 by red cells. Theory versus experiment.扩散边界层对红细胞初始摄取氧气的影响。理论与实验对比。
Microvasc Res. 1983 Jul;26(1):89-107. doi: 10.1016/0026-2862(83)90058-4.
7
Heat transport in laminar flow of erythrocyte suspensions.红细胞悬液层流中的热传递。
J Appl Physiol. 1975 Jul;39(1):86-92. doi: 10.1152/jappl.1975.39.1.86.
8
Estimation of platelet diffusivity in flowing blood.流动血液中血小板扩散率的估计。
Biorheology. 1978;15(2):111-7. doi: 10.3233/bir-1978-15205.
9
Transient lateral transport of platelet-sized particles in flowing blood suspensions.血小板大小颗粒在流动血液悬浮液中的瞬态横向运输。
Biophys J. 1994 May;66(5):1706-16. doi: 10.1016/S0006-3495(94)80962-2.
10
Shear-augmented dispersion in non-Newtonian fluids.
Ann Biomed Eng. 1993 Jul-Aug;21(4):407-15. doi: 10.1007/BF02368633.

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