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1.
This paper puts cmphasis on the problem of the developing flows in the circular tube under oscillatory conditions. According to the Navicr-Stokes' equations and using the method of Bessel function of imaginary argument, a system of formulsas is obtained. Comparing the formulas obtained in this paper with Atabek's formulas, it may, be seen that the former is simpler and more convenient. When both the formulas obtained in this paper and Atabek's formulas are reduced to the representation of developed flows, both of them are consistent. Numerical calculation results show that the computed results obtained in this paper are rather consistent with both Atabek's computed results and the experimental results. 相似文献
2.
圆锥形血管中的振荡发展流动 总被引:5,自引:2,他引:3
本文在小锥度角的假设下,研究了圆锥形血管的非定常振荡的发展流动问题.导得了相应的速度分布公式.分析表明,所有收缩的圆锥形血管的流动都是发展流动,而且锥度角对发展流动的影响随着锥度角的增大而增大. 相似文献
3.
This paper puts emphasis on the problem of the developing flows in the circular tube under oscillatory conditions. According
to the Navier-Stokes' equations and using the method of Bessel function of imaginary argument, a system of formulas is obtained.
Comparing the formulas obtained in this paper with Atabek's formulas, it may be seen that the former is simpler and more convenient.
When both the formulas obtained in this paper and Atabek's formulas are reduced to the representation of developed flows,
both of them are consistent. Numerical calculation results show that the computed results obtained in this paper are rather
consistent with both Atabek's computed results and the experimental results. 相似文献
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Assuming that the tapered angle is small,the problems of developing flow under unsteady oscillatory condition are studied in this paper.The formula of velocity distribution is obtained.The analyses for the results show that the blood flow in a converging tapered vessel remains a developing flow throughout the length,and the effects of tapered angle on the developing flow are increased with the increment of the tapered angle. 相似文献
7.
THECOUPLEMOTIONBETWEENVESSELWALLANDBLOODINTHEENTRANCEREGIONOFATAPEREDVESSELCenRen-jing(岑人经)QinChan(秦婵)TanZhe-dong(谭哲东)(SouthC... 相似文献
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岑人经 《应用数学和力学(英文版)》1988,(8)
The correlation problem between the blood fiow and the motion of vessel wall in the mammalian circulatory system is discussed in this paper. Supposing the blood flow is under the stable oscillatory condition, a set of formulas for velocity distribution, pressure distribution, displacement of vessel wall and constraining stress are obtained. Kuchar's formulas are extended from steady flow to unsteady oscillatory flow by means of the formulas obtained in this paper. The problem of elasticity effect of vessel wall is also discussed. 相似文献
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THESTRESSANALYSISOFVESSELWALLINTHEENTRANCEREGIONOFATAPEREDVESSELCenRen-Jing(岑人经)TanZhe-dong(谭哲东)ChenZheng-zong(陈正宗)(SouthChin... 相似文献
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