22 COMSOL NEWS 2017 MULTIPHYSICS ANALYSIS ADVANCES WATER MAIN LEAK DETECTION Predicting the speed of sound is important for accurately locating leaks in buried pipes such as water mains. Echologics Engineering has implemented a fi nite element simulation framework to model acoustic behavior in pipes and estimate variations in the speed of sound. by VALERIO MARRA Fresh, clean water is a precious commodity that municipalities cannot afford to waste in underground pipe leaks. As pipe infrastructure ages,  nding leaks becomes more dif cult. As water grows in value,  nding leaks becomes more critical. That is where the Toronto-based company Echologics, a division of Mueller Canada, Ltd., with its unique acoustic technology for noninvasive leak detection, enters the

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