pe= absolute pressure of exhaust gas at nozzle exit (Pa), p= absolute pressure of inlet gas (Pa) Some typical values of the exhaust gas velocityvefor rocket engines burning various propellants are: 1,700 to 2,900 m/s (3,800 to 6,500 mph) for liquid monopropellants, 2,900 to 4,50...
If the exit diameter of the garden hose nozzle used in Example 6.2 is reduced to 0.100 in, determine the exit velocity and the height to which the stream of water rises when pointed straight up. Answers: (Vout)a = 235 ft/s, and (Zout)b = 858 ft. Read more View chapterExplore book...
The exit velocity of a water jet generated at a pressure of p=140 MPa in a typical sapphire nozzle (μ=0.95) is vJ=503 m/s. Results of Eq. (2.4) are plotted in Fig. 2.1. It is important to note that the jet velocity does not depend on nozzle diameter. As the water jet exits...
[14] found that a jet exhausting from nozzles designed to reduce the axial velocity variation and the turbulence intensity, produces more noise compared to a nozzle with a fully developed flow at the exit. Furthermore, as speculated by Zaman [5], an increase of turbulence intensity in the ...
(p1, ρ1, andT1) at a point within the tank. Since the tank is "large," velocity here is assumed to be near zero. Also indicated on Fig. 1 are the same parameters as well as the velocity of flow and area of the nozzle(p2, ρ2, T2, v2,andA2) at the exit of the nozzle. ...
Calif.) The enhanced mixing is used to both increase the level of secondary flow entrainment and mix high and low stream flow to achieve lower speed uniform ejector exit velocity that has an acceptable level of external jet noise. An ejector, with its attendant deficiencies, is required to tak...
The majority of the air flow will exit via the air outlets on the left and right sides. Although the airflow velocity is higher near the entrance, it reaches its maximum when it meets the wall. Perfectly symmetrical flow fields and velocity fields are created on both sides of the symmetric...
The converging nozzle has an exit M = 1, while the converging–diverging nozzle has a supersonic Mach number exit. m˙max∼pt,5A6Tt,5. Therefore, the increase in stagnation temperature would increase the exhaust velocity V7, but at the expense of reduced mass flow, which would offset ...
In the nozzle exit zone, it assumes that the pressure and temperature at the nozzle exit are equal to the ambient temperature. Additionally, the airflow velocity is considered to be the local sound velocity, with the same mass flow as the actual gas leakage. However, the Birch84 model ...
Air-jet loomDynamics analysisWeft insertionOn the basis of fluid dynamics, this paper deduced the pull force formula of main nozzle on air-jet loom and introduces a method of experiment to test the airflow velocity in the exit of nozzle. The effect of different parameter structure of main ...