Numerical study of arterial flow during sustained external acceleration.
A computer model of the human arterial tree based upon the one-dimensional flow equations is used to study the effects of sustained acceleration (+Gz) on eye-level arterial pressure and flow. Steady-state physiological compensatory mechanisms are modelled using human centrifuge data found in the literature. Cases investigated include the supine and standing human (+1 Gz), the application of resistive and occlusive anti-G suits, and the occurrence of a stenosis proximal to the carotid bifurcation. Results indicate that the simulated eye-level pressures and flows satisfactorily correspond with those found in the literature.
Cornet
D A
DA
Biomedical Engineering Program, Iowa State University, Ames 50011.
Young
D F
DF
Rogge
T R
TR
D000054:Acceleration; D001783:Blood Flow Velocity; D001794:Blood Pressure; D016893:Carotid Stenosis / Q000503:physiopathology; D003198:Computer Simulation; D005676:Gravity Suits; D006801:Humans; D008955:Models, Cardiovascular