这些公式较全面地反映了气膜阻尼的特性。
These formulas reveal the feature of air film damping more comprehensively.
气膜流动属湍流流动。
本文分析了供气压力与气膜诸特性参数的关系。
The relation between the air supply pressure and the characteristic parameters of the gas film is discussed.
介绍了一种新型气膜密封结构、性能特点及其应用。
The structure, performance and features of a newly developed non-contacting gas film seal were introduced.
并从试验中发现了液膜蒸干后气膜段冷却的一些特点。
With it, some characteristics of the gas film cooling after liquid film vaporized-out point have been revealed.
气膜孔出流流量和出流位置对通道内流场的影响很小。
The mass flow rate and position of film outflow are less effective on the flow field in the channel.
气膜冷却技术在航空燃气涡轮中已经得到了长期的使用。
The film-cooling technique have already got usage of the long-term in the air gas turbine.
滑座轴承由滑座、旋转磁片、及二者间的超薄气膜所组成。
A slider bearing is consisted of a slider, a rotating disk, and an ultra thin air film between them.
隔热层烧蚀冷却、气膜冷却是冲压发动机常用的冷却方式。
Adiabatic ablation cooling, film cooling are the main means and have been used widely.
实验中发现气膜孔雷诺数和肋角对流量系数有较大的影响。
It is found in the experiments that film hole Reynolds number and Rib Angle have great influence on film hole discharge coefficients.
生物滤池处理甲苯废气，是以气膜控制为主的传质控制过程。
The treatment of waste gas of tolual by bio-filter is a transfer process that is mainly controlled by gas-film.
气垫式胶带输送机的技术关键是形成一层均匀稳定性的气膜。
The key technique of making air - cushioned edt convey is to form a layer of even and steady air membrane upon it.
建立了静压气体球轴承气膜位移-动态力频响函数的数学模型。
Equivalent mathematical model of frequency response function for externally pressurized spherical gas bearing with inherent compensation was built.
实验中对涡轮叶片采用四排气膜孔的冷却方案，气膜孔为圆柱形。
The surface of a gas turbine blade was cooled by four rows of cylindrical holes in the experiment.
利用数值计算的方法研究了非定常尾迹对动叶气膜冷却效率的影响。
Numerical calculations were performed to investigate the effects of unsteady wakes on film cooling.
文章从曝气方式的改进上提出了研发一体式射流曝气膜生物反应器。
The submerged jet aerated MBR is proposed for development from the point of aeration improvement.
气膜孔流量系数随动量比的增大而增加，在小动量比下，影响尤为明显；
The film hole flow coefficient is increased with momentum ratio, especially when momentum ratio is small.
然后应用有限元法对气膜流场进行了有效的数值模拟计算及优化设计分析。
Then the application of finite element method has been carried on effective numerical value analog computation and the design analysing to the gas membrane flow field has been optimized.
研究表明，启动过程中，密封的特性参数在开启临界气膜厚度附近快速变化；
The results indicated that the sealing parameters changed remarkably near the opening critical film thickness in the start up process.
着重介绍了气膜冷却、涡轮叶片内流冷却技术和气膜孔流量系数的研究进展。
Particular emphasis is given to the development of film cooling, internal cooling technologies and film hole discharge coefficients.
计算的边界条件包括燃气加热，内部对流冷却，气膜冷却和冲击冷却的对流换热。
E. M. The boundary condition consists of convective heat transfer of gas heating, internal cooling, film cooling and impinging cooling.
采用实验和数值计算相结合的方法，研究了非定常尾迹对叶片头部气膜冷却的影响。
Secondly, the effects of unsteady wakes on film cooling at the leading edge of blade were investigated by experiments and numerical simulations.
本文通过数值模拟的方法同时考虑了耦合传热和冷却流通道流动对气膜冷却的影响。
Numerical simulations were used to assess the effect of a conjugate heat transfer and internal coolant flow on film cooling.
密封端面正锥度的增加能使密封气膜刚度显著提高，但同时也使密封的泄漏量有所增加。
With the increasing of seal face's positive taper, the stiffness of gas film would obviously increase, but the leakage of seal would also increase.
密封端面正锥度的增加能使密封气膜刚度显著提高，但同时也使密封的泄漏量有所增加。
With the increasing of seal face's positive taper, the stiffness of gas film is obviously increased, but the leakage of seal is also increased.
结果表明，锥度改变了端面膜压分布，并显著影响开启力、气膜刚度以及泄漏率等参数；
The results indicate that the film pressure distribution is changed, and the performance parameters such as opening force, gas film stiffness, leakage are dramatically influenced by the face coning.
计算模拟了两排26个气膜孔，每个孔截面的网格数达到近200个，计算域包括了供气腔。
The computational domain were extended to the coolant supply plenum, and two rows of 26 film cooling holes were simulated, with about 200 cells across each orifice cross-section.
根据开启临界气膜厚度的假设，提出了用于分析干式气体密封开启性能的判据——开启临界转速。
With the hypothesis of critical gas film thickness, a criterion for expressing the opening behavior of DGS, namely the critical opening rotational speed (CORS), was proposed.
根据开启临界气膜厚度的假设，提出了用于分析干式气体密封开启性能的判据——开启临界转速。
With the hypothesis of critical gas film thickness, a criterion for expressing the opening behavior of DGS, namely the critical opening rotational speed (CORS), was proposed.
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