Bernoulli is for "inviscid" flow -- no resistance. You have a pipe with approximately the same pressure at inlet and outlet and find that the pressure varies depending on the flow velocity. Center of the constrictions = low pressure. Wide points = ambient pressure.hongiddong said:The equation for mean arterial pressure = flow * resistance, however, if we increase flow we would increase velocity by the equation Velocity = flow/ cross sectional area, and velocity would decrease pressure according to bernoullies law?
Which would take precedence in generating more pressure on the arterial walls?
Flow refers to the volume of fluid passing through a given area in a specific amount of time, while velocity is the speed at which the fluid is moving. In terms of pressure, flow and velocity are both important factors that can affect the pressure of a fluid.
Greater flow means that more fluid is passing through a given area, which can lead to an increase in pressure. This is because the force of the fluid against the walls of the container or pipe increases as more fluid is present, resulting in a higher pressure.
Velocity also plays a significant role in determining pressure. As the velocity of a fluid increases, the pressure of the fluid decreases. This is due to the Bernoulli's principle, which states that as the velocity of a fluid increases, its pressure decreases.
It depends on the specific situation. In some cases, a higher flow rate may result in a higher pressure, while in others, a higher velocity may cause a decrease in pressure. Both flow and velocity should be considered when analyzing the pressure of a fluid system.
Flow and velocity can be manipulated by altering the size of the container or pipe, changing the fluid's properties (such as density or viscosity), or adjusting the amount of fluid being introduced into the system. By controlling flow and velocity, the pressure of a fluid can be controlled as well.