# Sharp-edged orifice in a straight pipe

## Values for calculation

## Calculation

### Diameter ratio

### Jet contraction ratio

### Loss coefficient

### Discharge coefficient

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$$β=\cfrac{d_o}{d}$$

$$λ=1+0.622\cdot\left(1-0.215\cdot β^2-0.785\cdot β^5\right)$$

$$ζ=0.0696\cdot\left(1-β^5\right)\cdot λ^2+\left(λ-β^2\right)^2$$

$$μ=\cfrac{1}{\sqrt{ζ+1}}$$