Study on Surging of Centrifugal Pumps (5 th Report) : Stability of Series and Parallel Running

Abstract

In this paper, the author studied theoretically the stability of pumps and these pipe line systems, when two pumps are connected in series and parallel. To treat theoretically these series and parallel running, the theoretical means in preveous reports were modified. The results are considerably analogous to the case of single pump running. In the parallel running, however, the system containing air tank or water tank, has many dynamical freedoms, which we cannot solve generally. For the present case we intend to make it clear experimentally in the next report.