Finite element solutions for mass oscillations in surge tanks |
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| Authors: | E McKeogh |
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| Institution: | Department of Civil Engineering, University College, Cork, Ireland;Department of Civil Engineering and Building Technology, UWIST, Cardiff, UK |
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| Abstract: | This paper describes a finite element technique using the method of weighted residuals for the solution of mass oscillations in surge tanks. Three weighting functions, uniform, linear and Galerkin, are applied and the results are compared with those from alternative techniques. The relatively simple case of surge analysis with flow rate change in the penstock, but neglecting tunnel friction, is first considered as a direct analytical solution is available. Finally friction is included for comparison with a graphical and analogue solution. |
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| Keywords: | surge tank mass oscillations 1-d finite elements weighted residuals |
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