CAJ | 학술논문

以气泡作为研究对象,采用热力学推导的方法,建立了气泡Tolman长度的表达形式,并与有关文献中液滴Tolman长度和等温压缩系数关系式进行比较,指出气泡Tolman长度与气相等温压缩系数以及气液两相密度比值有关。另外,讨论了纳米气泡表面张力的取值情况。
이기포작위연구대상,채용열역학추도적방법,건립료기포Tolman장도적표체형식,병여유관문헌중액적Tolman장도화등온압축계수관계식진행비교,지출기포Tolman장도여기상등온압축계수이급기액량상밀도비치유관。령외,토론료납미기포표면장력적취치정황。
A derivation of the Tolman length from the formation of vapor bubbles is given by methods of thermodynamics. The expression indicates that the Tollnan length of vapor bubbles is related to surface tension and isothermal compressibility of vapor phase inside vapor bubbles and the ratio of vapor phase density to liquid phase density. On the basis of the formula of Tolman length, an explanation is presented for the surface tension of nano bubbles is slight greater than the surface tension of planar interface.