Presentation 1994/5/27
AN APPLICATION OF STEADY FLOW IN HELICAL TUBE TO THE BLOOD FLOW BEHAVIOR OF INTRA MYOCARDIAL CORONARY ARTERIAL SYSTEM.
Hirofumi Hirayama, Junichi Satoh, Norio Takeuchi, Yuzo Hukuyama,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The coronary arterial system that perforates the ventricular muscle vertically shows a helical pattern.Thus,we have analyzed the axial blood flow velocity in the steady flow in the helical tube to speculate the blood flow nature within the intra myocardial coronary artery.The cylindrical coordinates system have been converted into toroidal coordinates system by which Navier- Stokes equations have been represented.The first order perturbation solution showed the maximum value at the middle of the cross section of helical tube and forward flow at π, 4θ2π/ 4 and 6π/4θ2π,the second order solution was positive at π/4θ 3π/4π and the third solution 0θπ.These patterns were independent from radius and number of helix.Present analysis is useful for analyzing the spatial distribution of axial blood flow of intra ventricular muscle coronary arterial system.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Coronary Artery / Helical Tube / Toroidal Coordinates / Blood Flow Rate / Radius of Artery
Paper # MBE94-10
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Committee MBE
Conference Date 1994/5/27(1days)
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Registration To ME and Bio Cybernetics (MBE)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) AN APPLICATION OF STEADY FLOW IN HELICAL TUBE TO THE BLOOD FLOW BEHAVIOR OF INTRA MYOCARDIAL CORONARY ARTERIAL SYSTEM.
Sub Title (in English)
Keyword(1) Coronary Artery
Keyword(2) Helical Tube
Keyword(3) Toroidal Coordinates
Keyword(4) Blood Flow Rate
Keyword(5) Radius of Artery
1st Author's Name Hirofumi Hirayama
1st Author's Affiliation Department of Public Health,Asahikawa Medical College()
2nd Author's Name Junichi Satoh
2nd Author's Affiliation Department of Public Health,Asahikawa Medical College
3rd Author's Name Norio Takeuchi
3rd Author's Affiliation Department of Public Health,Asahikawa Medical College
4th Author's Name Yuzo Hukuyama
4th Author's Affiliation Department of Public Health,Asahikawa Medical College
Date 1994/5/27
Paper # MBE94-10
Volume (vol) vol.94
Number (no) 80
Page pp.pp.-
#Pages 8
Date of Issue