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1)  water-air two-phase flow model
水–气二相流模型
1.
A numerical model based on the theory of water-air two-phase flow model is proposed to simulate the process of the transient air flows from the compressed air tunnel into the surrounding ground induced by excess air pressure inside the tunnel.
在阐述压气法隧道施工原理的基础上,建立了水–气二相流模型来模拟压气法隧道施工过程中超压空气驱替隧道周围土体的孔隙水的水–气二相流过程。
2)  numerical model of two-phase flow
水气二相流数模型
3)  liquid-gas two-phase flow model
气液二相流模型
4)  water-air two-phase flow
水-气二相流
1.
To simulate the fluids(water and air) flowing through unsaturated soils,a numerical model for water-air two-phase flow through unsaturated soil was developed.
为了真实反映非饱和带中流体(水和气)的运移规律和渗透特性,将非饱和带中的孔隙水和孔隙气作为研究对象,基于水-气二相流理论,建立了水-气二相流数学模型。
2.
The integral of finite difference method and Newton-Raphson iterative method are applied to numerically solve the governing equations of water-air two-phase flow in saturatedunsaturated porous media.
本文根据多孔介质中水、气的质量守恒定律,结合多相流理论,建立了求解饱和-非饱和渗流的水-气二相流数学模型,并采用积分形式的有限差分法和Newton-Raphson迭代方法进行数值求解,提出了各种边界条件,包括水相、气相和降雨入渗边界的数学处理方法。
3.
In general, there are two kinds of fluids (water and air) through saturated-unsaturated porous media in seepage process, so the water-air two-phase flow model is regarded as a better numerical model to obtain the refined solution to saturated-unsaturated seepage problem.
非饱和带的渗流过程实质上是水、气两种流体在土壤孔隙中相互替代的过程,因此采用水-气二相流模型求解饱和-非饱和渗流问题更加合理。
5)  water-air two-phase flow
水气二相流
6)  air phase model
气相流模型
补充资料:水气转相方法
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性质:亦称水-气转相方法。将某些惰性气体吸入分散在水中的颜料悬浮体中,颜料粒子表面上吸附一定量的气体或颜料粒子被吸附在气泡表面上,并以泡沫形式浮在液体上面,经过分离可以制取松软结构的粉末状颜料产物,其粒径接近于合成过程中未经干燥的粒度0.1~1μm左右。

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