-How does the head flowing through your 90° v-notch weir impact the discharge coefficient? -How does a 90° notch influence the device coefficient and discharge flowing over your triangular weir? (FLOW...

-How does the head flowing through your 90° v-notch weir impact the discharge coefficient? -How does a 90° notch influence the device coefficient and discharge flowing over your triangular weir? (FLOW OVER A 90 DEGREES V-NOTCH WEIR) Need ASAP. thank you.