APPENDIX E – Air-Water Interface
Surge Analysis and the Wave Plan Method
Supplementary Material: Example Problems and Solutions
Appendix E – Problem 15
E.15 Residual air accumulates and becomes compressed at peak points along the pipeline over a period of time as illustrated in the following figure. This process may be viewed as a polytropic process (Eq. E.3). What polytropic exponent represents this process most accurately?

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