損失を考慮した水撃作用による圧力変化の解析的検討

概要

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Allievi's formula is well khown for approximately calculating the maximum pressure rise in a conduit caused by a water hammer. This formula is obtained, neglecting the elasticity of the conduit, the compressibility of the Fluid, linear closure of the valve, and the head loss of the conduit. The object of this paper is to discuss analytically the effect of the head loss of a conduit on the pressure variation. As a result, a formula for linear closure of the valve, and a method approximately calculating the maximum pressure variation caused by a water hammer not only of cases considering the effect of head loss but also for a system having a conduit downstream from the valve, are obtained.
一般社団法人日本機械学会の論文
1991-04-25