DRIVING FORCE SHIFTER 1 2MmL.p… · DRIVING FORCE™ SHIFTER 1 2 PDF USB
Open Channel Flow Closed pipe Pump or fan driving force No free surface Open channel Gravity driving...
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Open Channel Flow Closed pipe • Pump or fan driving force • No free surface Open channel • Gravity driving force • Free surface
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Transcript of Open Channel Flow Closed pipe Pump or fan driving force No free surface Open channel Gravity driving...
Open Channel Flow
Closed pipe• Pump or fan driving force• No free surface Open channel• Gravity driving force• Free surface
Open channel
Prismatic channel Hydraulic radius• Rh = flow area/wetted perimeter
• Optimize for greatest flow at smallest wetted perimeter
Manning equation
USCS: cfs Q = (1.49/n)A Rh
2/3So1/2
Manning coefficient: n depends on channel surface smoothness
Part 1
Flow valve wide open; allow flow to stabilize
Record flow meter value Record dimensions for Manning equation Install rectangular weir; obtain dimensions Install v-notch weir; obtain dimensions