欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了进一步揭示端弯叶片技术对角区分离流动的控制机制，应用商业软件Numeca对某地面重型燃气轮机压气机末级静叶进行了数值模拟，详细对比分析了采用端弯叶片技术与弯叶片技术后对原型叶栅壁面压力场以及出口总压损失分布的影响。研究结果表明，端弯叶片技术与弯叶片技术均能缓解端部角区分离流动。与弯叶片相比，相同弯角的端弯叶片具有相同的驱动附面层向叶展中部的迁移能力。端弯叶片通过合理地调整弯高与弯角沿流向的变化，有效地控制了端区附面层的发展，因此端弯叶片具有更好的控制角区分离以及降低静叶总压损失的能力。
英文摘要：
To further elaborate the mechanism behaviors of the end-bend blade controlling the corner separation, commercial software Numeca was employed to simulate the flow in the rear stator of a heavy-duty gas-turbine compressor. The effects of end-bend blade and bowed blade on the distribution of surface pressure coefficient and total pressure loss at the outlet were studied. The results show that, both of those two retrofit methods can alleviate the corner separation; compared with bowed blade, when the bowed angle is given, end-bend blade has the same ability to force the boundary layer to move towards the mid-span. By redistributing the bowed angle and bowed height along the flow direction reasonably, end-bend blade can control the development of boundary layer effectively, and therefore pronounces a much better ability to control corner separation and reduce the total pressure loss.
同期刊论文项目
同项目期刊论文
patial discretization error in an artificial benchmark model of oblique laser incidence by finite vo
Analysis on capabilities of density-based solvers within Open FOAM to distinguish aerothermal variab
A Second Order Radiative Transfer Equation and Its Solution by Meshless Method with Application to S
Analysis on transient conjugate heat transfer in gap–cavity–gap structure heated by high speed airfl
Numerical simulation of infrared signature emitted by liquid rocket plume using wide band k-distribu
Effect of air temperature on combustion characteristics and NOx emissions from a 0.5 MW pulverized c
Experimental study of the impact of holes-typesuction on the flow characteristics in a high-load com
First-principles molecular dynamics study on temperature-dependent dielectric function of bulk 3C an
Temperature-dependent dielectric function of germanium in the UV-vis spectral range: A first-princip
Characterization of combustion and NOx emissions with respect to over-fire air damper opening in a d
Simulation of flow behavior of particles bycluster structure-dependent drag coefficient model for ch
An effective inversion algorithm for retrieving bimodal aerosol particle size distribution from spec
Study of topology and vortex structure in turbinecascades with tip clearance under differentincidenc
Effect of the anthracite ratio of blended coals on the combustion and NOx emission characteristics o
Experimental study on the characteristics of heat transfer and flow resistance in a turbulent pipe f
Evaluation on cold modeling flow field for a down-fired 600 MWe supercritical boiler with multi-inje
Modeling of a rotational supercavitating evaporator and geometrical characteristics of supercavity i
Annaland Martin van Sint．Hans Kuipers, Dongsheng Wen, Discrete particle modeling of granular tempera
A de？ciency problem of the least squares ？nite element method for solving radiative transfer in stro
Simulation of flow behavior of particles by cluster structure-dependent drag coefficient model for c
Aerodynamic characteristics within a cold small-scale model for a down-fired 350 MWe supercritical u
Numerical simulation of natural convection in a square enclosure filled with nanofluid using the two
Inner and Outer Secondary-Air Distance-Effect Study within a Cold Small-Scale Model of a New Down-Fi
New over-fire air arrangement and its air ratio optimization determined by aerodynamic characteristi
期刊信息
位置：