EFFECTS OF EXTERNAL BODY ACCELERATIONS ON BLOOD-FLOW

A mathematical model of blood flow in single arteries and arterioles s ubject to both the pulsatile pressure gradient due to normal heart act ion and a single cycle of body acceleration is presented. The body acc eleration is such that it increases from zero to a maximum value at a uniform rate, remains constant at this maximum value for some time and thereafter returns to zero at a uniform rate. To account for the red cells in blood, blood is considered to be a two-phase fluid, that is, a suspension of red cells in plasma. Numerical results are presented f or the effects of body acceleration on flow variables, such as, flow r ate, velocity, acceleration and shear stress corresponding to the flow of blood in the human aorta and arterioles.