Discharge Coefficient Versus Reynolds Number For Different Test Liquids

Discharge Coefficient Versus Reynolds Number For Different Test Liquids The relationship between c and re is depicted in figure 6.the discharge coefficient varies linearly with d re at really low reynolds numbers and tends to have a constant value between 0.8 and 0.9. A discharge coefficient c d = 0.975 can be indicated as standard, but the value varies noticeably at low values of the reynolds number. the pressure recovery is much better for the venturi meter than for the orifice plate. the venturi tube is suitable for clean, dirty and viscous liquid and some slurry services. the rangeability is 4 to 1.

Discharge Coefficient Versus Reynolds Number For Different Test Liquids Figure 4. left: discharge coefficient c d calculated for the 189 data points generated by the pulsating flow apparatus as per the test plan shown by table 1. orifice β = 0.30. right: discharge coefficient c d plotted against the strouhal number defined for an orifice by equation (5). Results are presented in terms of predicted discharge coefficients and plots of discharge coefficient trends versus reynolds number for venturi, standard orifice plate, v cone and wedge differential pressure flow meters. sketches of these meters are shown in fig. 1. download: download full size image; fig. 1. sketches of meters. Download scientific diagram | discharge coefficient versus reynolds number for different test liquids from publication: newtonian and elastic liquid jet interaction with a moving surface. Theoretical discharge coefficient (cd): a calculated value of the discharge coefficient allows 0.3% uncertainty from a cfv from a low uncertainty throat diameter measurement. in johnson and wright, 2008 , the fluid metrology group used low uncertainty dimensional metrology to show that theoretical c ds agree with experimental c ds within 0.09%.

Discharge Coefficient Vs Reynolds Number Download Scientific Diagram Download scientific diagram | discharge coefficient versus reynolds number for different test liquids from publication: newtonian and elastic liquid jet interaction with a moving surface. Theoretical discharge coefficient (cd): a calculated value of the discharge coefficient allows 0.3% uncertainty from a cfv from a low uncertainty throat diameter measurement. in johnson and wright, 2008 , the fluid metrology group used low uncertainty dimensional metrology to show that theoretical c ds agree with experimental c ds within 0.09%. 1. the most accurate method is to use a discharge coefficient reynolds number curve for the required geometry, which includes all dimensional effects and other influences. 2. to reduce the number of curves, a datum curve is used in conjunction with correction factor curves. The discharge coefficients of the ball check valve can be considered in a proportional relation to the reynolds number square root [31]. their values usually are from 0.6 to 0.8 [34]. discharge.