Exponential flow equationThe experimental measurements of volume flow-rate of a viscous gas through a nozzle suggest that the flow-rate approaches saturation exponentially with increasing pressure difference across the nozzle. An exponential flow-rate equation has been developed which closely fits the ...
This section presents the behavior of the flow through a nozzle as the back pressure pB on the nozzle is varied when the nozzle-supply pressure is maintained at a constant value p0 (the stagnation pressure). Here the pB is the pressure in the nominally quiescent environment into which the ...
(at the nozzle),A1v1=A2v2A_{1} v_{1}=A_{2} v_{2}A1v1=A2v2for the continuity equation, and Bernoulli's equation:P1+12ρv12+ρgh1=P2+12ρv22+ρgh2P_1+\frac{1}{2}\rho v_1^2+\rho gh_1=P_2+\frac{1}{2}\rho v_2^2+\rho gh_2P1+...
The boundary of a control volume for fluid flow is usually taken as the physical boundary of the part through which the flow is occurring. The control volume concept is used in fluid dynamics applications, utilizing the continuity, momentum, and energy principles mentioned at the beginning of ...
The point-slope form equation of a line through point p with slope m is: y−yp=m(x−xp) The advantage of this form of a line is that you need only one point and the slope to completely define the line. The x and y without subscripts can be any point on the line. However, ...
Answer to: A simple flow model for the steady, incompressible flow through a two-dimensional converging nozzle of length L is the following...
Orifice, Nozzle, and Venturi Flow Meters: Principles, Calculations & Data The orifice, nozzle and venturi flow rate meters makes the use of the Bernoulli Equation to calculate fluid flow rate using pressure difference through obstructions in the flow. ...
Fig. 1 shows the conceptual behavior of a liquid flow at the upstream temperature, T0, through a nozzle. In the figure, point B represents a saturated liquid condition and section BC, a metastable superheated condition owing to depressurization. Theoretically, a maximum-superheated condition can ...
When a critical flow occurs through a nozzle or an orifice, throat pressure provides a maximumback pressurefor a given upstream condition, e.g., a choked pressure. A fundamental perspective, the liquid flowing through a nozzle or orifice experiences rapid depressurization owing to thehydrostatic pre...
A fluid dispensing control for controlling the dispensing of a fluid by a metering valve through a nozzle onto a workpiece. An initial value of a flow characteristic of the fluid is determined that is correlated to the relationship betwe... Bretmersky, Carl A,Hall, Robert C,Klein, Richard ...