Steps for Designed a customized Rotameter to measure the flowrate of Water. Pipe diameter $(=$inlet diameter of Rotameter$)$ is $25$ mm and outlet diameter is $35$ mm$.$ Length of rotameter is $150$ mm$.$ A cone shape bob with diameter $20$ mm and height $20$ mm is used for measurement. Float is made of anodized aluminum with density $3950$ kg$/$m$3.($Assume Cd $=1)$

Rotameter flowrate is as below

Distance

Flowrate

Distance

Flowrate

$0$

Minimum $($X$)$

$80$ mm

$3$ X

$10$ mm

$1\mathrm{.}1$ X

$90$ mm

$4$ X

$20$ mm

$1\mathrm{.}2$ X

$100$ mm

$5$ X

$30$ mm

$1\mathrm{.}4$ X

$110$ mm

$6$ X

$40$ mm

$1\mathrm{.}6$ X

$120$ mm

$7$ X

$50$ mm

$1\mathrm{.}8$ X

$130$ mm

$8$ X

$60$ mm

$2\mathrm{.}0$ X

$140$ mm

$9$ X

$70$ mm

$2\mathrm{.}5$ X

$150$ mm

$10$ X