数学模型利用体积法、达西关系式和质量守恒原理来描述油藏。
Mathematical models use volumetrics. Darcy relationships, and conservation of mass to describe the reservoir.
根据斐克分子扩散定理及能量、质量守恒原理，提出一种表面霜增长的简化模型。
On the basis of molecular diffusion Fick's law and principles of energy and mass conservation, a simplified model of frost growth on a surface is presented.
从渗流力学的基本原理出发，基于质量守恒原理，建立了气水两相地层稳定渗流的数学模型。
Based on principle of mass conservation, this paper sets up mathematical model of gas water two phase steady flow.
基于质量守恒原理来计算高植被下垫面的动力学粗糙度、零平面位移是目前较为精确和实用的方法。
The method based on the mass conservation principle is a practical one to calculate the aerodynamic roughness lengthandzero plane displacement over tall vegetations.
本文基于半球形流的特点，利用质量守恒原理，通过推导得到了由拟压力、压力平方和压力一次方表示的产量公式。
Based on the mass conservation principle, the production formula of semi-spherical flow for pseudo-pressure, pressure-squared and pressure are derived in this paper.
基于s - R分解原理的更新拖带坐标有限元法分析这类构件，有利于跟踪变形物体中各点的变化，保证单元的质量守恒。
Updated co-moving coordinate finite element based S-R decomposition theorem is convenient to track deformations of points in the deformed configures, to assure the mass equilibrium of element.
通过对碳基复合材料热化学烧蚀机理分析，由质量守恒、能量守恒及系统化学反应的热化学平衡原理，建立相应的热化学和热力学烧蚀模型。
The present paper is devoted to the development and establishment of corresponding thermochemical and thermomechanical ablative models by analyzing flow and C/C composite materials ablative mechanism.
通过对碳基复合材料热化学烧蚀机理分析，由质量守恒、能量守恒及系统化学反应的热化学平衡原理，建立相应的热化学和热力学烧蚀模型。
The present paper is devoted to the development and establishment of corresponding thermochemical and thermomechanical ablative models by analyzing flow and C/C composite materials ablative mechanism.
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