No coefficient of discharge is not constant. It is a function of many parameters like :
The ratio of the length of the orifice to diameter of orifice
Reynolds number
flow condition-whether it is increasing or decreasing
Pressure at the exit of the orifice (back pressure)
Orifice entry condition- like smooth entry, sharp edged entry etc.
the coefficient is 46 and the constant is 0
15
coefficient
2. Although, technically, the coefficient, 5, is also a constant.
a constant is any regular number like 1,2,3,4, etc. a coefficient is any number with a variable so 1x,2x,3x,4x, etc. so im positive 7 is a constant
paniyaram
Coefficient of discharge of an ideal liquid can be defined as a ratio of actual discharge and theoretical discharge. where, Cofficient of discharge = Actual Discharge/ Theoretical discharge.
In a ploynomial or differential equation or really any formula or equation with variables in it, the coefficients are the terms "in front of" the variable or multiplied the variables. Each variable generally has its own coefficient. If a coefficient is constant (ie just a number) then it is a constant coefficient. eg Consider the polynomial , 3x2+9yx+6 in terms of x. It has one constant coefficient (3), one variable coefficient (9y) and one constant (6).
In Venturi meter losses are less so coefficient of discharge is higher whereas in orifice meter due to no convergent and divergent cones there are more losses and hence its coefficient of discharge is less.In venturi meter losses are low due to steamline shape of the diffuser and the pressure gradient is not abrupt as in case of orifice meter.
the coefficient is 46 and the constant is 0
.623
.623
6 is the coefficient, n is the variable, 3 is the constant
6 is the coefficient, n is the variable, 3 is the constant
15
coefficient
coefficient