Based on the waste residue continuing to use the theory of pure gypsum as amendment in improving alkaline soil establish a plan that with saving resources , water and with better effect and rapid speed . reach on the effect of the same - ion effect and salt effect of nacl in course of improving the alkaline soil . then after the certain amount of gypsum for exertion is decided , compare the effect of exertion of waste residue for one time with for more than one time 首先比较煤烟脱硫废渣与化学纯石膏改良的物理化学过程的异同，在废渣基本上可以沿用纯石膏改良的理论基础上，在一定的计划改良深度内，定量的石膏施用方法的情况下，建立一个省石膏，省水，省工，效果好，速度快的方案；同时研究了nacl的盐效应和na _ 2so _ 4的同离子效应在纯石膏改良碱土过程中起到的作用；最后针对石膏施用量确定之后，一次施入还是分次施入更好，进行了探讨；结合当地耕作条件，总结各有利的技术措施，指导田间的生产实际。
The simulation results show that each gas species has close relation with the temperature distribution , and the method of cell modeling to can effectively simulate the complicated physical and chemical process inside the furnace , and can provide the theories leading for boiler design ， reformation and run 仿真结果表明，炉内温度分布的高温区和低温区与各气体成份的分布存在很强的对应关系，同时表明采用小室模型可以对炉内复杂的物理化学过程进行有效的模拟，该模型可为锅炉设计、改造和运行提供理论指导。
Slagging is a very complicated physical and chemical process which deals with several scientific courses such as combustion , multi - phase flow , heat and mass transfer etc . during the operation of boilers , the causes of the slagging are rather complicated ; they are related to not only the characteristics of fossil fuel , but to the architecture and operational condition of boilers 结渣过程是个十分复杂的物理化学过程，其中涉及燃烧、气固多相流、传热与传质等多门学科。锅炉运行过程中，影响结渣的因素错综复杂，既和燃料特性有关，也和锅炉结构、运行条件有关。
In this article , constituting some the equations which reflect the flow law and building and applying many mathematical models of physical and chemical reactions in the the plasma ignition : applying k - two equations turbulence model to calculate the turbulence parameter supplying simplied reaction systerm model and applying eddy break - up model and p - i thermal radiation model . with these reasonable simplied modles , numerically simulating the flow field in the plasma ignition . during the numerical simulation , applying the body - fitted coordinates for the complex geometry of the computional field ; using the mixing format to disperse the equations ; applying simplec algorithm method to solve the equations ; using above models and methods , it can get flow field distribution ; including temperature , pressure , turbulent kinetic energy and its dissipation rate , turbulent viscosity , velocity , density . these results are significant to design and improve the plasma ignition 本文旨在通过构造反映等离子点火器内部流动规律的基本方程组，建立描述等离子点火器内部的复杂物理化学过程机制数学模型：模拟等离子发生器内部燃烧的-双方程湍流流动模型；模拟气体燃料在燃烧时中化学反应的简单化学反应系统模型；模拟等离子点火器内部湍流预混燃烧的漩涡破碎模型；模拟等离子点火器高温燃气及其壁面的p - i辐射换热的模型等等，对模型进行一定的合理的简化，然后数值模拟等离子点火器内部流场的流动。
