流体の非定常流に対する解法とその吸入効率計算に対する応用

概要

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A very effective equation that can be applied to many problems concerned with variable pipe line, is obtained by integrating one dimensional Euler's equation remaining its non-stationary term. Thus, we get an equation as follows : dq/(dt)+q^2/(2Φ^2)+p_1/p-H_0=0 In this paper, I am showing an instance in which this equation is proved to be useful in dissolving the charging efficiency of internal combustion engines. This problem has been analysed by the method of wave equation, where gas in a suction pipe was considered as wave medium. Whereas, it is regarded, in this case, as a uniform mass. Consequently, the charging efficiency is expressed by the average value of suction state. This method of handling the problem is quite effective when multiple cylinder engine is used, and the fluctuation of suction pressure is less important than the average value of it.
一般社団法人日本機械学会の論文
1951-10-20