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Fluids Knowledge | Engineering Software
Flow Advisor for Channels and Tanks
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Flow Advisor may be used to estimate water flow rate from various shaped channels and tanks.
Software Capabilities:
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Open Channel Flow
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Water Flow Rates
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Time taken to empty tanks
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Volume, Capacity, Weight and Expansion
Flow Advisor's Materials Database is included with density and coefficient of expansion of many common
materials.
OPEN CHANNEL FLOW
Open-channel flow occurs when a liquid flows due to gravity. Usually the flowing liquid has a free surface, as in a channel, flume or partially full pipe. The liquid is not under pressure, other than atmospheric pressure. Many formulae have been developed to estimate the flow rate in open-channels, the Manning formula has become widely accepted as the usual method of estimating flow rate.
WATER FLOW RATE CALCULATION
The Manning formula uses a coefficient to correct for the type of channel in use. The cross-sectional area of the flow, the wetted perimeter of the flow and the slope ratio must be calculated. The results are more accurate if the flow cross-section, velocity, depth and slope are constant (steady flow). The flow rate estimates are applicable to water or fluids similar to water.
TIME TAKEN TO EMPTY TANKS
The flow rate from a tank outlet will be dependant on the
orifice size, orifice type and the head of fluid above the outlet position. The
additon of an oulet pipe may restrict the oulet flow rate unless the outlet pipe
is relatively short. As the tank empties the fluid head will reduce
progressively, reducing the outlet flow rate. The shape of the tank will also
affect the time taken to empty, as changes in shape will affect the rate of
change of the fluid head available.
VOLUME, CAPACITY, WEIGHT & EXPANSION
The inner volume, fluid capacity, weight and expansion of
various pipes, sections, channels and tanks can be calculated. The weight of a
pipe, channel or tank in various material constructions (steel, wood, aluminium,
brass etc.) and the fluid contents may be displayed by entering the appropriate
dimensions and choosing the material and fluid type.
Trial
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