Nonlinear Dynamics of Pipes with Pulsatile Flow
نویسندگان
چکیده
منابع مشابه
The dynamics of pulsatile blood flow.
The theory of dynamic fluid motion involving the forces manifested by mass, acceleration, viscous friction and vessel wall tension have been considered and studied when arterial blood flow and pressure are pulsatile. These studies and considerations have resulted in the conclusion that arterial blood pressure is dependent upon all of these parameters and that the relationship of pressure and fl...
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امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...
PULSATILE MOTION OF BLOOD IN A CIRCULAR TUBE OF VARYING CROSS-SECTION WITH SLIP FLOW
Pulsatile motion of blood in a circular tube of varying cross-section has been developed by considering slip flow at the tube wall and the blood to be a non- Newtonian biviscous incompressible fluid. The tube wall is supposed to be permeable and the fluid exchange across the wall is accounted for by prescribing the normal velocity of the fluid at the tube wall. The tangential velocity of the fl...
متن کاملMR-gated intracranial CSF dynamics: evaluation of CSF pulsatile flow.
This article describes a new imaging method, called MR-gated intracranial CSF (liquor) dynamics, or MR-GILD. Pulsatile flow in CSF pathways is revealed by the difference between diastolic- and systolic-gated images. The images clearly demonstrate the ventricles, cisterns, and vascular structures. The dependence of CSF movement on arterial pulse transformation is analyzed, illustrative cases are...
متن کاملStability Issues of Concentric Pipes Conveying Steady and Pulsatile Fluids
In this paper, we study both the static and dynamic stabilities of submerged and inclined concentric pipes conveying uid. The governing equation for the inner tubular beam is derived under small deformation assumptions. We obtain the dis-cretized dynamical equations using spatial nite diierence schemes. In the case of steady ow, both buckling and utter instabilities are investigated. In the cas...
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ژورنال
عنوان ژورنال: PAMM
سال: 2002
ISSN: 1617-7061,1617-7061
DOI: 10.1002/1617-7061(200203)1:1<79::aid-pamm79>3.0.co;2-t