The 'Hardy Cross method' for pipe network analysis ensures which two conditions are satisfied?
Choose the correct answer
Only pressure at one node
Continuity at each node AND zero head loss around each loop (energy balance) simultaneously
Equal velocity in all pipes
Only that total demand = supply
Correct Answer
B. Continuity at each node AND zero head loss around each loop (energy balance) simultaneously
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Hardy Cross: iterative method for analysis of looped pipe networks. Satisfies: (1) Continuity at each node: ΣQ_in = ΣQ_out; (2) Energy: algebraic sum of head losses around each loop = 0 (energy balance). Correction ΔQ = −(ΣhL)/(2Σ(hL/Q)). Iterate until ΔQ → 0. Used for water distribution network analysis.
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