查询词典 combustion method

This paper reviews and summarizes the progress in this field as follows: the mathematical model and the difficulty of the analytical solutions is introduced; discusses the latest progress of the numerical solutions is discussed; the finite difference method, the Godunov method, the Boltzmann method, and the KFVS method of one-dimensional dam-break problem are introduced; the TVD method, the discontinuous finite element method, the finite volume method and characteristic method of two-dimensional dam-break problem are discussed; the applicability, the advantage and the disadvantage of each method are analyzed; and the progress in the numerical calculations of flow of fluid with free surface are presented.

回顾和总结了国内外对溃坝水流演进问题的研究进展：介绍了溃坝水流的数学模型及解析解法存在的困难，进而讨论了数值解法的最新进展；论述了求解溃坝水流一维问题的有限差分法、近似黎曼解的Godunov格式法、Boltzmann法、KFVS法和二维问题的TVD格式法、间断有限元法、有限体积法、特征线法，并分析了各种方法的适用范围和优缺点，及讨论了限制函数的使用；介绍了利用自由水面追踪方法计算溃坝水流的研究进展，并根据目前存在的不足和实际工程的需要，提出了进一步研究的方向和发展趋势。

The waste combustion in the waste bed and the impacts of the waste burning efficiency are complex. In order to solve this problem, the method of numerical simulation has been adopted to simulate waste combustion, and calculate the mass loss rate, moisture evaporation, volatile release, char burning rate. Used the total flow rate of primary air between 50～1 000 Nm3/min to calculate the mass loss, excess air coefficient of waste bed, components of the gas. Calculated results show that the burning efficiency is higher when the total flow rate of primary air is at 517.47～632.09 Nm3/min .

针对垃圾焚烧炉床层内垃圾燃烧过程复杂性及影响垃圾燃烧效率因素多的问题，运用数值仿真方法对某垃圾焚烧炉床层垃圾燃烧进行了模拟，获得了垃圾质量流失速率、水分蒸发速率、挥发分释放速率、焦炭燃烧速率和烟气的温度；并在50～1 000 Nm3/min范围内改变一次风流量，获得了床层质量流失比值、过剩空气系数和烟气中各组分的质量百分比含量。

Consequently the diathermancy was strengthened, the effect of heat transfer was improved and the flow and combustion process in the boiler has become much better. First, in this thesis the burn characteristic of the rubbish and the process of combustion in the chain boiler has been studied. A series of mathematic model has been given. This thesis carefully introduced the principle and formula of the turbulent flow model、two-equation model、radiation model、dispersed phase model and standard wall function method. The software FLUENT has been applied to simulate the temperature、pressure、velocity and mass fraction of species in the boiler furnace and stokehole. The analysis and the comparison have been done. The calculation results indicate agreement with the fact and the studies both here and abroad.

首先，本文针对SZL10-1.25-MJ造纸垃圾焚烧锅炉，结合其燃料的特性，对垃圾的燃烧特性以及层燃炉中垃圾的焚烧过程进行分析；给出一套完整的垃圾锅炉炉内传热数学模型，并分别详细阐述了湍流流动模型、双方程模型、辐射传热模型、离散相模型及标准壁面函数的原理及计算公式；借助于Fluent软件平台对炉膛内的温度场、速度场、组分浓度场及炉膛出口的温度分布、速度分布、组分浓度分布等进行数值模拟，分别从定性和定量的角度与实际情况进行了比较，得到了较满意的结果；模拟结果与国内外的很多研究能较好符合。

The droplet combustion model and numerical method have been established and droplet combustion process has been calculated by using it.

建立了燃料液滴在高温高压空气中燃烧过程的计算模型和数值方法。

Using expurgation method divide combustion noise from mechanical noise, it showed combustion noise is main noise.

采用消去法分离了发动机的燃烧噪声和机械噪声，确定发动机燃烧噪声占主导地位。

On the basis of chamber theory and industrial application,in this paper,a practical threedimensional mathematics method of turbulent combustion in combustion chamber of oil-fired float glass furnace has been established.

本文首先在综合横焰玻璃熔窑理论及实践的基础上，建立了具有实用意义的燃油浮法玻璃熔窑火焰空间燃烧过程的三维数学模型。

The effect for analyse result exactly was analysed from analysis line,lamp current,combustion controller height and gas/combustion-supporting gas to determine lead in gasolene by atomic absorption spectrometry method,and defined the best operating conditions.

分析了原子吸收法测定汽油铅含量时分析线、灯电流、燃烧器高度及燃气/助燃气比等操作条件对分析结果准确性的影响，并确定了最佳操作条件

The mechanical equations during to different combustion periods and the corresponding kinetics parameter E were calculated by integral method (Coats-Redfern), which indicated that the value of aviation energy was relevant with the combustion period.

采用积分法(Coats-Redfern方程)计算得到各阶段燃烧反应的机理方程及相应的动力学参数活化能E，表明活化能值的大小与试样的燃烧阶段是对应的。

According to phase plane method and properties of pulse combustion, characteristics of trajectory diagram of stable pulse combustion are obtained, which can be used to judge operation stability.

根据相平面法的基本原理及脉冲燃烧的特点，提出了运行稳定情况下脉冲燃烧过程的相迹图所应具备的特征，即运行稳定性判据。

The method that combustion pressure pulsation is reconstructed from vibration signals, is valuable for diagnosis of combustion process.

本文研究的利用振动信号恢复缸内燃烧压力波动信号，对于燃烧过程的诊断具有实用意义。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！