CAJ | 학술논문

考虑重力对吹除过程的影响，改进现有压载水舱高压气体吹除数理模型，并对原始数理模型与改进数理模型进行差异对比。通过高压气体吹除系统的模型试验，验证改进数理模型的可靠性。最后，使用改进的数理模型对影响吹除效率的因素进行分析。结果表明：在吹除系统中，当流水孔面积达到一定值时，可能出现流水孔面积增大，但流水孔的水的质量流量几乎不变的情况；当等效喷管喉部直径足够大时，高压吹除的速率与等效喷管喉部直径关系较小。
고필중력대취제과정적영향，개진현유압재수창고압기체취제수리모형，병대원시수리모형여개진수리모형진행차이대비。통과고압기체취제계통적모형시험，험증개진수리모형적가고성。최후，사용개진적수리모형대영향취제효솔적인소진행분석。결과표명：재취제계통중，당류수공면적체도일정치시，가능출현류수공면적증대，단류수공적수적질량류량궤호불변적정황；당등효분관후부직경족구대시，고압취제적속솔여등효분관후부직경관계교소。
This paper improves the mathematical model for the high pressure air blowing in ballast tanks proposed by other researcher by incorporating the effects of gravity,and the difference between the original model and the improved one is presented. To verify the credibility of the improved model,an experiment of high pressure air blowing was carried out,which shows that the improved model can be well applied into the design and optimization of the blowing system. Finally,the impact of certain factors on the blowing pro?cedure is discussed. It is observed that the mass flow rate does not increase along with raise in the outlet ar?ea when the latter reaches a certain threshold,and the blowing rate may not change much when the diame?ter of the nozzle throat increases to a certain value.