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| 1 | Influence of Internal Channel Geometry of Gas Turbine Blade on Flow Structure and Heat Transfer显示文摘This paper presents the study of the influence of channel geometry on the flow structure and heat transfer, and also their correlations on all the walls of a radial cooling passage model of a gas turbine blade. The investigations focus on the heat transfer and aerodynamic measurements in the channel, which is an accurate representation of the configuration used in aeroengines. Correlations for the heat transfer coefficient and the pressure drop used in the design of internal cooling passages are often developed from simplified models. It is important to note that real engine passages do not have perfect rectangular cross sections, but include a corner fillets, ribs with fillet radii and a special orientation. Therefore, this work provides detailed fluid flow and heat transfer data for a model of radial cooling geometry which has very realistic features. | Ryszard Szwaba Piotr Kaczynski Janusz Telega Piotr Doerffer | 2017 | Journal of Thermal Science2017，26，6： | 4 |
| 2 | The Effect of Air Humidity on Shock Wave Induced Incipient Separation显示文摘During earlier research on shock wave/boundary layer interaction control, the effect of air humidity flow separation has been observed. This has inspired a more detailed study on the effect of air humidity on shock induced incipient separation and on the involved involved processes. The phenomenon has a twofold nature. In supersonic flow, the condensation of humidity causes flow retardation due to heat addition. The consequent weakening of the shock wave reduces the tendency towards separation. On the other hand, the incipient separation is postponed at the same Mach numbers of interaction. | Piotr DOERFFER Andrzej SZUMOWSKI Shen YU | 2000 | Journal of Thermal Science2000，9，1： | 4 |
| 3 | Flow Structure and Heat Exchange Analysis in Internal Cooling Channel of Gas Turbine Blade显示文摘This paper presents the study of the flow structure and heat transfer,and also their correlations on the four walls of a radial cooling passage model of a gas turbine blade.The investigations focus on heat transfer and aerodynamic measurements in the channel,which is an accurate representation of the configuration used in aeroengines.Correlations for the heat transfer coefficient and the pressure drop used in the design of radial cooling passages are often developed from simplified models.It is important to note that real engine passages do not have perfect rectangular cross sections,but include coiner fillet,ribs with fillet radii and special orientation.Therefore,this work provides detailed fluid flow and heat transfer data for a model of radial cooling geometry which possesses very realistic features. | Ryszard Szwaba Piotr Kaczynski Piotr Doerffer Janusz Telega | 2016 | Journal of Thermal Science2016，25，4： | 3 |
| 4 | Shock Wave Boundary Layer Interaction on Suction Side of Compressor Profile in Single Passage Test Section显示文摘The shock wave boundary layer interaction on the suction side of transonic compressor blade is one of the main objectives of TFAST project(Transition Location Effect on Shock Wave Boundary Layer Interaction).In order to investigate the flow structure on the suction side of a profile,a design of a generic test section in linear transonic wind tunnel was proposed.The experimental and numerical results for the flow structure investigations are shown for the flow conditions as the existing ones on the suction side of the compressor profile.Near the sidewalls the suction slots are applied for the corner flow structure control.It allows to control the Axial Velocity Density Ratio(AVDR),important parameter for compressor cascade investigations.Numerical results for Explicit Algebraic Reynolds Stress Model with transition modeling are compared with oil flow visualization,schlieren and Pressure Sensitive Paint.Boundary layer transition location is detected by Temperature Sensitive Paint. | Pawel Flaszynski Piotr Doerffer Ryszard Szwaba Piotr Kaczynski Michal Piotrowicz | 2015 | Journal of Thermal Science2015，24，6： | 3 |
| 5 | Streamwise vortex generation by the rod显示文摘The technology development related to aerodynamics is leading to ever increasing loads of wings, airfoils and turbine and compressor blades. The increase in aerodynamic forces is often leading to flow separation and depreciation of the aerodynamic performance of flying objects or propulsion systems. Flow control methods are required to avoid these negative effects. In the recent two decades the flow control by means of air-jet vortex generators has been also intensively investigated. In this method a streamwise vortex is introduced by an oblique jet. The necessity to supply air by a pipe system may be considered a disadvantage. In order to eliminate this feature, it has been proposed to put out a rod instead of a jet. It has been shown that the application of a rod can introduce the same effect as a jet, as long as the streamwise vortex generation is concerned and appropriate dimensions are used. The present paper focuses on the influence of rod vortex generators on a flow pattern downstream. The results presented here concern experimental and numerical investigations and provide guidelines for the design of a new flow control method dedicated mainly to external flows. | Ryszard SZWABA Pawel FLASZYNSKI Piotr DOERFFER | 2019 | Chinese Journal of Aeronautics2019，32，8： | 2 |
| 6 | Shock Wave Strength Reduction by Passive Control Using Perforated Plates显示文摘强壮的、正常冲击波,在一个机翼,不是仅仅限制上终止一个本地超声的区域空气动力学的性能而且成为高速度的冲动的直升飞机噪音的来源。转子片上的一个被动控制系统(一个穿孔盘子盖住的一个洞) 的应用程序应该减少动人的震动创造的噪音。这篇文章盖住 Bohning/Doerffer 蒸发法律的数字实现进 SPARC 代码并且为接近音速的嘴的相对简单的几何学对试验性的数据包括扩大确认。它是向与减少被动控制设备在的噪音装备的一个直升飞机转子的完整的模拟的第一个步骤徘回并且处于前面的飞行条件。 | Piotr Doerffer Oskar Szulc | 2007 | Journal of Thermal Science2007，16，2： | 2 |
| 7 | Shock Wave Smearing by Passive Control显示文摘正常冲击波,在一个机翼上终止一个本地超声的区域,限制它的表演并且成为来源高加速冲动的噪音。使用被动控制瓦解被建议冲击波。这个方法获得的流动结构的细节数字地被学习。一个新边界条件被开发了,它的应用程序的结果在嘴流动对实验被验证。崩溃被证实了并且详细说明流动细节的分析的冲击波的方法被介绍。由渐渐的压缩的一个冲击波的替换完全改变高速度的来源它的减小的冲动的噪音和熊潜力。关键词接近音速的流动 - 冲击波边界层相互作用 - 被动控制 CLC 数字 O357. | Piotr DOERFFER Oskar SZULC Rainer BOHNING | 2006 | Journal of Thermal Science2006，15，1： | 2 |
| 8 | Numerical Analysis of Shock Induced Separation Delay by Air Humidity显示文摘In this paper numerical calculations of the dry and humid air flows in the nozzle are presented. The dry air flow (adiabatic flow) and the humid air flow (flow with homogeneous condensation, diabatic flow) are modeled with the use of Reynolds Averaged Navier-Stokes (RANS) equations. The comparison of these two types of flow is carried out. The influence of the air humidity on the shock wave location and its interaction with the boundary layer is examined. Obtained numerical results present a first numerical approach of the condensation and evaporation process in transonic flow of humid air. The phenomena considered here are very complex and complicated and need further in-depth numerical analysis. | Piotr DOERFFER Slawomir DYKAS | 2005 | Journal of Thermal Science2005，14，2： | 2 |
| 9 | Interpretation of the 685 nm peak in water-leaving radiance spectra in terms of fluorescence, absorption and scattering, and its observation by MERIS显示文摘 | Gower J F R Doerffer R Borstad G A | 1999 | International Journal of Remote Sensing1999，20，9： | 1 |
| 10 | Nucleate pool-boiling heat transfer. I: review of parametric effects of boiling surface显示文摘 | I.L. Pioro W. Rohsenow S.S. Doerffer | 2004 | International Journal of Heat and Mass Transfer2004，，23： | 1 |
| 11 | Neural network for cmulation of an inverse model-Operational derivation of case II water properties from MERIS data显示文摘 | Schiller H Doerffer R | 1999 | International Journal of Remote Sensing1999，20，9： | 1 |
| 12 | Shock wave-boundary layer interaction control by wall ventilation 显示文摘 | Doerffer P Bohning R | 2003 | Aerospace Science and Technolo- gy2003，，7： | 1 |
| 13 | Interpreta- tion of the 685 nm Peak in Water-leaving Radiance Spectra in Terms of Fluorescence, Absorption and Scatteri:_g, and Its Observation by MERIS显示文摘 | Gower J F R Doerffer R Borstad G A | 1999 | In ternational Journal of Remote Sensing1999，，： | 1 |
| 14 | Concentrations of Chlorophyll,Suspended Matter,and Gelbstoff in Case Π Waters Derived from Satellite Coastal Zone Color Scanner Data with Inverse Modeling Methods显示文摘 | Roland Doerffer Jurgen Fischer | | J G Research0，99，4： | 1 |
| 15 | Concentrations of chlorophyll, suspended matter, and gelbstoff in case Ⅱ waters derived from satellite coastal zone color scanner data with inverse modeling methods 显示文摘 | Doerffer R Fischer J | 1994 | Journal of Geophysical Research1994，99，： | 1 |
| 16 | Nucleate pool - boiling heat transfer Ⅱ: assessment of prediction methods 显示文摘 | Pioro I L Rohsenow W Doerffer S S | 2004 | International Journal of Heat and Mass Transfer2004，47，： | 1 |
| 17 | Neural network for emulation of an inverse model operational derivation of Case II water properties from MERIS data显示文摘 | Helmut Schiller Roland Doerffer | 1999 | International Journal of Remote Sensing1999，20，9： | 1 |
| 18 | Concentrations of Chlorophyll,Suspended Matter, and Gelbstoff in Case Ⅱ Waters Derived from Satellite Coastal Zone Color Scanner Data with Inverse Modeling Methods显示文摘 | Doerffer R Fischer J | 1994 | Journal of Geophysical Research1994，99，4： | 1 |
| 19 | Secondary Flow Control and Stream wise Vortices Formation 显示文摘 | Piotr P Doerffer Jochen Amecke | 1994 | ASME Paper 94-GT-3761994，，： | 1 |
| 20 | Interpre tation of the 685nm peak in water-leaving radiance spectra in terms of fluoreseence, absorption and scattering, and its ob servation by MERIS显示文摘 | GOWER J F R DOERFFER R BORSTAD G A | 1999 | International Journal of Remote Sensing1999，20，： | 1 |
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