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3 cards from this section. Quick, good the night before a test.
Calculate head loss for a flow of 4 L/s with K = 0.05.
Remember H_L = K Q^2.
What is the primary goal of the Hardy Cross Method?
Think about the flow in a closed loop.
What does the Hardy Cross Method primarily analyze?
Consider where you have seen this method applied.
In the Hardy Cross Method, a positive ΔQ indicates what?
Think about what achieving zero head loss means for the flow.
Given a looped pipe network with pipes A, B, C, and D having respective K values of 0.03, 0.05, 0.02, and 0.04, if the flows are distributed as 20 L/s, 15 L/s, and 10 L/s, calculate ΔQ for the network. Assume all other conditions are ideal.
Remember to calculate head losses from each pipe, sum them, and look for inequalities to adjust the flows.
You have a network with an inflow of 50 L/s and a desired output of 40 L/s. Using the Hardy Cross Method, detail the iterative steps you'd take to reach the desired output, including ΔQ adjustments.
Focus on ensuring the head loss equation balances out while adjusting Q values.
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