ECE_3820_lecture_17_2011

ECE_3820_lecture_17_2011 - Today (10/27), lecture #17 1)...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Today (10/27), lecture #17 1) Quiz #7: Reading #7 and problem 3.1 of HW set #5. Bring your calculator. 2) Finish Poiseuille’s Law 3) Hemodynamics 4) Blood as a non-Newtonian fluid Tuesday (11/01), lecture #18 1) Continuity equation 2) Equations of motion 3) More hemodynamics
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Remaining answers for Hw Set #5: Problem 3: 60 mmHg Problem 4: Q model =10Q artery Problem 5: k g j y y x a i xy x a k z P j y P i x P P ˆ ˆ ) ( 2 ˆ ) ( 2 ˆ ˆ ˆ 3 2 2 2 3 2 ρ + + = + + =
Background image of page 2
Viscous fluid between parallel plates. The lower plate moves with velocity (V) in the positive x direction. No-slip boundary condition : fluid nearest the wall clings to the wall and moves at the same velocity as the wall. transient steady-state Laminar flow : fluid moves in sheet-like layers (lamellae) that slide in an orderly fashion.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Steady-state flow in a rigid tube: Poiseuille’s Law L P R Q µ π 8 4 = Q=flowrate R=tube radius L=length of the tube P=pressure gradient μ=fluid viscosity Derivation will be discussed on the board.
Background image of page 4
Rheology: the study of the deformation of substances under the influence of an applied stress. Usually the substances have a complex structure, such as suspensions, sludges, polymers, and biological materials. Hemodynamics: study of the flow of blood. Principles of hemodynamics
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Circulatory system systemic circulation, pulmonary circulation, lymphatic system Arteries carry blood away from the heart. Veins carry blood back to the heart and serve as a low pressure storage reservoir of blood. Nominal cardiac output: 4-6 L/min. Left & right ventricles pump blood in parallel, therefore: Venous return equals cardiac output. Preload : the pressure inside a ventricle at the end of diastole (after passive filling and after atrial contraction). Afterload : the pressure generated by a ventricle to eject blood. Pulmonary circulation : low pressures (25-28 mmHg). Systemic circulation : pressure in the aorta (100 mmHg) drops to 30 mmHg at the entrance to a capillary.
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/14/2011 for the course ECE 3820 taught by Professor Wang during the Fall '11 term at GWU.

Page1 / 23

ECE_3820_lecture_17_2011 - Today (10/27), lecture #17 1)...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online