In nozzle theory, flow is assumed to be one-dimensional.

在喷嘴的理论，流量是假设为一维。

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Proper unloader setting allows a small amount of continuous bypass (approximately 5% of total flow) to minimize the pressure spike and compensate for nozzle wear.

正确的减压器设置允许少量的连续旁路（约总流量的5%）来减少减荷器压力以及补偿喷嘴磨损。

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The results show that the reason why surge happened is that flow area of nozzle ring and blade was decreased.

结果表明：增压器喷嘴环和涡轮叶片流通面积减少是涡轮增压器喘振的主要原因。

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