Relevant bibliographies by topics / Blade channel

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Blade channel'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Blade channel"

1

Tao, Ran, and Zhengwei Wang. "Comparative modeling and analysis of the flow asymmetricity in a centrifugal pump impeller at partial load." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 234, no. 2 (2019): 237–47. http://dx.doi.org/10.1177/0957650919851921.

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Undesirable flow regime occurs at partial-load conditions of the centrifugal pump. Flow separates at the leading edge and pulses in the blade channel with complex stall cell transfer law. The passing capability of the blade channel becomes important when rotating stall happens. In this study, the blade channel number influence on the flow stability in a centrifugal pump impeller was studied by unsteady flow simulations after numerical-experimental verification. The 5-, 6-, and 7-blade impellers were discussed under the same partial-load flow rate condition and the same rotating speed. Results
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Guo, Xinxin, Xueying Li, and Jing Ren. "Evolution of Rotating Internal Channel for Heat Transfer Enhancement in a Gas Turbine Blade." Aerospace 11, no. 10 (2024): 836. http://dx.doi.org/10.3390/aerospace11100836.

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To achieve higher thermal efficiency in a gas turbine, increasing the turbine inlet temperature is necessary. The rotor blade at the first stage tolerates the highest temperature, and the serpentine internal channel located in the middle chord of the rotor blade is vital in guaranteeing the blade’s service life. Therefore, it is essential to illustrate the evolution of the rotating internal channel in a gas turbine blade. In the paper, the influence of the Coriolis force, including its mechanisms, on the conventional rotating channel are reviewed and analyzed. A way to utilize the positive hea
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Zhuang, Haifei, Mingming Liu, and Tao Guo. "Modification and Optimization of Cylindrical Blade of Dredge Pump Based on CFD." Journal of Physics: Conference Series 2329, no. 1 (2022): 012004. http://dx.doi.org/10.1088/1742-6596/2329/1/012004.

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Abstract The 3500 m3/h series cutter suction dredger pump adopts cylindrical blade impeller with low efficiency and serious wear of impeller channel; The twisted blade is optimized by conformal transformation method, and the blade wrap angle is increased by 75°; The efficiency of dredge pump with twisted blades is increased by 9% compared with cylindrical blades when the flow is 8000-12000 m3/h; The relative velocity nephogram shows that the twisted blade eliminates the vortex in the impeller channel and improves the flow field; Through the erosion simulation analysis of solid-liquid two-phase
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Gribin, Vladimir, Ilya Gavrilov, Aleksandr Tishchenko, et al. "Features of liquid phase movement in the inter-blade channel of nozzle blade cascade." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 232, no. 5 (2017): 452–60. http://dx.doi.org/10.1177/0957650917730947.

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The experimental results of wet steam flow in the blade channel of flat nozzle blade cascade have been considered in the paper. The aim of this work is to study the motion of liquid droplets inside the inter-blade channel. Experimental studies were performed on installation circuit of wet steam. In order to obtain velocity fields of droplets in investigated channel, the laser diagnostics system was used. It carries out the cross-correlation method—particle tracking velocimetry. Numerical simulation of wet steam flow in studied channel was performed. According to the obtained data, the main fea
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Ben-Mansour, R., and L. Al-Hadhrami. "Effect of Reynolds Number and Property Variation on Fluid Flow and Heat Transfer in the Entrance Region of a Turbine Blade Internal-Cooling Channel." International Journal of Rotating Machinery 2005, no. 1 (2005): 36–44. http://dx.doi.org/10.1155/ijrm.2005.36.

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Internal cooling is one of the effective techniques to cool turbine blades from inside. This internal cooling is achieved by pumping a relatively cold fluid through the internal-cooling channels. These channels are fed through short channels placed at the root of the turbine blade, usually called entrance region channels. The entrance region at the root of the turbine blade usually has a different geometry than the internal-cooling channel of the blade. This study investigates numerically the fluid flow and heat transfer in one-pass smooth isothermally heated channel using the RNGk−εmodel. The
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Wang, Meng-Hui, Shiue-Der Lu, Cheng-Che Hsieh, and Chun-Chun Hung. "Fault Detection of Wind Turbine Blades Using Multi-Channel CNN." Sustainability 14, no. 3 (2022): 1781. http://dx.doi.org/10.3390/su14031781.

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This study utilized the multi-channel convolutional neural network (MCNN) and applied it to wind turbine blade and blade angle fault detection. The proposed approach automatically and effectively captures fault characteristics from the imported original vibration signals and identifies their state in multiple convolutional neural network (CNN) models. The result obtained from each model is sent to the output layer, which is a maximum output network (MAXNET), to compute the most accurate state. First, in terms of wind turbine blade state detection, this paper builds blade models based on the no
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Ke, Qidi, Lingfeng Tang, Wenbin Luo, and Jingzhe Cao. "Parameter Optimization of Centrifugal Pump Splitter Blades with Artificial Fish Swarm Algorithm." Water 15, no. 10 (2023): 1806. http://dx.doi.org/10.3390/w15101806.

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Low specific speed centrifugal pumps typically suffer from low efficiency and severe backflow; adding optimally structured splitter blades can play a role. In this paper, the distribution of pressure and velocity in the flow channel is analyzed using CFD simulation for a low specific speed centrifugal pump. The geometric parameters of the splitter blade are optimized using an orthogonal test and an artificial fish swarm algorithm; then the optimal splitter blade structure is obtained. Results showed that the splitter blade not only effectively solves the backflow of the flow channel and compre
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Zhang, Jinfeng, Guidong Li, Jieyun Mao, Shouqi Yuan, Yefei Qu, and Jing Jia. "Effects of the outlet position of splitter blade on the flow characteristics in low-specific-speed centrifugal pump." Advances in Mechanical Engineering 10, no. 7 (2018): 168781401878952. http://dx.doi.org/10.1177/1687814018789525.

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To elucidate the influences of the outlet position of splitter blades on the performance of a low-specific-speed centrifugal pump, two different splitter blade schemes were proposed: one located in the middle of the channel and the other having a deviation angle at the trailing edge of splitter blade toward the suction side of the main blade. Experiments on the model pump with different splitter blade schemes were conducted, and numerical simulations on internal flow characteristics in the impellers were studied by means of the shear stress transport k- ω turbulence model. The results suggest
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Zhao, Wenbin, Jianbin Hu, and Kai Wang. "Influence of Channel-Diffuser Blades on Energy Performance of a Three-Stage Centrifugal Pump." Symmetry 13, no. 2 (2021): 277. http://dx.doi.org/10.3390/sym13020277.

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In order to improve hydraulic efficiency, influence of inlet angle, outlet angle, wrap angle, inlet shape and outer edge camber lines of channel-diffuser blades on the energy performance of a three-stage centrifugal pump were studied and the pressure distributions on the blade of the first-stage channel-diffuser were particularly analyzed. The result shows that the efficiency of the pump is maximal when the blade inlet angle is 12°. The pressure variation in the model with the inlet angle of 12° was small and the amplitude of fluctuation was also not large. When the outlet angle was 90°, the p
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Khalatov, A. A., A. S. Kovalenko, and S. B. Reznik. "FEATURES OF ORGANIZATION OF FILM COOLING OF HIGH TEMPERATURE GAS TURBINES BLADES." Industrial Heat Engineering 39, no. 4 (2017): 11–20. http://dx.doi.org/10.31472/ihe.4.2017.02.

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The features of the release of the cooling air in the interscapular channel high temperature gas turbines at the film cooling are considered. Possibilities of its local distribution on contour of an entrance edge of the perforated blades are investigated. The presented calculations show that the substantial increase in the cooling efficiency can be attained due to channels of small dimension in the blade wall.
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Dissertations / Theses on the topic "Blade channel"

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Karpik, A., and Yu Vorobiev. "Nonlinear Analysis of Gas Flow in Compressors Stage Based on CFD-Method." Thesis, NTU "KhPI", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/24955.

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The numerical simulation of a three-dimensional viscous flow in cascade of the axial compressor of low pressure of the gas-turbine engine is presented. The results of a flow in the first stage o f the compressor in nonstationary three-dimensional statement are obtained in the solver F. Velocity and pressure fields are received as a result.
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Ricklick, Mark. "CHARACTERIZATION OF AN INLINE ROW IMPINGEMENT CHANNEL FOR TURBINE BLADE COOLING APPLICATIONS." Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2696.

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Gas turbines have become an intricate part of today's society. Besides powering practically all 200,000+ passenger aircraft in use today, they are also a predominate form of power generation when coupled with a generator. The fact that they are highly efficient, and capable of large power to weight ratios, makes gas turbines an ideal solution for many power requirement issues faced today. Designers have even been able to develop small, micro-turbines capable of producing efficient portable power. Part of the turbine's success is the fact that their efficiency levels have continuously risen sin
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Roclawski, Harald. "PIV Measurements of Channel Flow with Multiple Rib Arrangements." UKnowledge, 2001. http://uknowledge.uky.edu/gradschool_theses/303.

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A model of a gas turbine blade cooling channel equipped with turbulators and a backward facing step geometry was examined. Up to four turbulators oriented cross-stream and inclined 45° to the flow direction were mounted in the channel. The blockage ratio b/H of the turbulators and the height h/H of the backward facing step was 0:125 and 0:14 respectively. The number of turbulators as well as their size was varied. In a preliminary investigation, hot-wire and pressure measurements were taken for three different Reynolds numbers (5,000, 12,000, 18,000)in the center plane of the test section. Sub
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Bhattarai, Kripesh. "On the Use of a Digital Communication Channel for Feedback in a Position Control System." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1353512595.

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Rupakula, Venkata Panduranga Praveen. "Determination of heat (mass) transfer from blockages with round and elongated holes in a wide rectangular channel." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4977.

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Mass transfer experiments were conducted to study the thermal performance characteristics of blockages with round and elongated holes, positioned in a 12:1 rectangular channel. Naphthalene sublimation technique was adopted to conduct experiments with four different blockage configurations, flow rates corresponding to Reynolds numbers (based on channel hydraulic diameter) of 7,000 and 17,000, and at three blockage locations. The hole area to channel area ratio for all four blockage configurations was the same at 0.196. The hole width was half the channel height, and the distance between consecu
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Liu, Yao-Hsien. "Heat transfer in leading and trailing edge cooling channels of the gas turbine blade under high rotation numbers." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3196.

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Waidmann, Christian [Verfasser]. "Heat Transfer Measurements in Rotating Turbine Blade Cooling Channel Configurations using the Transient Thermochromic Liquid Crystal Technique / Christian Waidmann." München : Verlag Dr. Hut, 2021. http://d-nb.info/1232847747/34.

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Nagaiah, Narasimha. "Multiobjective Design Optimization of Gas Turbine Blade with Emphasis on Internal Cooling." Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5350.

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In the design of mechanical components, numerical simulations and experimental methods are commonly used for design creation (or modification) and design optimization. However, a major challenge of using simulation and experimental methods is that they are time-consuming and often cost-prohibitive for the designer. In addition, the simultaneous interactions between aerodynamic, thermodynamic and mechanical integrity objectives for a particular component or set of components are difficult to accurately characterize, even with the existing simulation tools and experimental methods. The current r
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Mhetras, Shantanu. "Experimental study of gas turbine blade film cooling and internal turbulated heat transfer at large Reynolds numbers." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1820.

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Waidmann, Christian [Verfasser], and Jens von [Akademischer Betreuer] Wolfersdorf. "Heat transfer measurements in rotating turbine blade cooling channel configurations using the transient thermochromic liquid crystal technique / Christian Waidmann ; Betreuer: Jens von Wolfersdorf." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2020. http://d-nb.info/122943853X/34.

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Books on the topic "Blade channel"

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Gauntt, Randall Owen. The DF-4 fuel damage experiment in ACRR with a BWR control blade and channel box. Division of Systems Research, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1989.

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Gauntt, Randall Owen. The DF-4 fuel damage experiment in ACRR with a BWR control blade and channel box. Division of Systems Research, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1989.

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Lee, Laura. Blame it on the rain: How the weather has changed history. Harper, 2006.

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Thompson, Vicki Lewis. Cowboy Up: Sons of Chance - 5, Harlequin Blaze - 624, Mills & Boon Blaze 2-in-1 - 67. Mills & Boon, 2012.

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Eisler, Riane Tennenhaus. The chalice andthe blade: Our history, our future. Harper & Row, 1987.

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O'Connell, Anne. Centralizing power, decentralizing blame: What Ontarians say about education reform. Caledon Institute of Social Policy, 1998.

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O'Connell, Anne. Centralizing power, decentralizing blame: What Ontarians say about education reform. Caledon Institute of Social Policy, 1998.

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Eisler, Riane Tennenhaus. The chalice and the blade: Our history, our future. HarperSanFrancisco, 1995.

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Eisler, Riane Tennenhaus. The chalice and the blade: Our history, our future. Harper & Row, 1987.

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Daniel, Elizabeth. Don't blame the tools: The adoption and implementation of managerial innovations. Elsevier/Cima Pub., 2009.

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Book chapters on the topic "Blade channel"

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Prabhu, A., B. Vasudevan, P. Kailasnath, R. S. Kulkarni, and R. Narasimha. "Blade Manipulators in Channel Flow." In Turbulence Management and Relaminarisation. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-83281-9_7.

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Lu, Long, Vinod Yegneswaran, Phillip Porras, and Wenke Lee. "BLADE: Slashing the Invisible Channel of Drive-by Download Malware." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-04342-0_20.

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Nguyen, Tien-Dung, Hai-Quang Do, Cong-Hung Hoang, et al. "Effect of Turning Vanes on Heat Exchange Characteristics of Cooling Channel in Turbine Blade." In The AUN/SEED-Net Joint Regional Conference in Transportation, Energy, and Mechanical Manufacturing Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1968-8_100.

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Berger, Ricarda, and Raimund Rolfes. "Dynamical Behaviour and Strength of Structural Elements with Regeneration Induced Imperfections and Residual Stresses." In Regeneration of Complex Capital Goods. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-51395-4_10.

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AbstractRepair techniques allow to refurbish blades of jet engines and extend the service life of engine components. However, the mechanical properties of the repaired blades commonly differ from those of the nominal blades. The changes in vibration behaviour and stress distribution resulting from the repair processes could significantly impair the structural integrity of blades. This work addresses this evaluation of repair-specific influences on the structural integrity of blades of blade-integrated disks (blisks). Numerical methods are employed to model and analyse the structural changes of
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Zhyrkov, Oleksandr, Oleksandr Usatyi, Olena Avdieieva, and Yuri Torba. "Supersonic Flow in the Blade Channel of the Nozzle with a Rotary Diaphragm at Small Degrees of Opening." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06044-1_7.

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Schreiner, F., M. Beller, J. Pohle, B. Thorenz, and F. Döpper. "Life Cycle Assessment (LCA) of a Circular Saw Blade for Wood Processing." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-77429-4_18.

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AbstractClimate change and its negative consequences are an inevitable topic that strongly affects all industrial sectors as well as private individuals. Therefore, it is necessary to assess and monitor the environmental impact of products, services, and processes. This paper presents a practical application of an LCA for a circular saw blade used in wood processing. By considering all stages of the circular saw blade’s life cycle, including manufacturing, period of use, and end of life phase, a comprehensive assessment of its environmental impact is provided. The software SimaPro was utilized
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Blustein, Jeffrey M. "How Forgiveness Changes Blame." In Holding Wrongdoers Responsible. Routledge, 2021. http://dx.doi.org/10.4324/9781003231615-15.

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Tilly, Charles. "Credit, Blame, and Social Life." In Collective Violence, Contentious Politics, and Social Change. Routledge, 2017. http://dx.doi.org/10.4324/9781315205021-23.

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Coles-Ritchie, Marilee. "Introduction: Can We Blame the Teachers?" In Inciting Change in Secondary English Language Programs. Palgrave Macmillan US, 2009. http://dx.doi.org/10.1057/9780230101074_1.

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Burke, W. Warner. "Robert R. Blake and Jane S. Mouton." In The Palgrave Handbook of Organizational Change Thinkers. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49820-1_4-1.

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Conference papers on the topic "Blade channel"

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Agrawal, Smita, Taiho Yeom, Youmin Yu, Mark North, Terrence Simon, and Tianhong Cui. "The Effects of Agitator Blade Geometry and Configuration for Augmenting Heat Transfer by Agitation in Channel Flows." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37303.

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Translationally oscillating blades, called agitators, can be used to thoroughly mix the flow inside heat exchanger channels such as those in an electronics module heat sink. Generally, throughflow is provided with an induction fan. Agitation is implemented inside the channel by using either multiple agitator blades, agitator blades with notched edges, full-length long-blade agitators or short-blade agitators. The power needed to drive the agitator blades is dependent on the agitation velocity, geometry and mass. The performance features of a 50mm long agitator blade operating at an oscillation
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Amano, R. S., Krishna Guntur, and Jose Martinez Lucci. "Computational Study of Gas Turbine Blade Cooling Channel." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22920.

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It has been a common practice to use cooling passages in gas turbine blade in order to keep the blade temperatures within the operating range. Insufficiently cooled blades are subject to oxidation, to cause creep rupture, and even to cause melting of the material. To design better cooling passages, better understanding of the flow patterns within the complicated flow channels is essential. The interactions between secondary flows and separation lead to very complex flow patterns. To accurately simulate these flows and heat transfer, both refined turbulence models and higher-order numerical sch
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Benoni, Albert, and Reinhard Willinger. "Design Modification of a Passive Tip-Leakage Control Method for Axial Turbines: Linear Cascade Wind Tunnel Results." In ASME 2013 Turbine Blade Tip Symposium. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/tbts2013-2056.

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Tip-leakage losses can contribute up to one third of the overall losses in unshrouded axial turbine blades. A passive tip-leakage flow control method is used to reduce the tip-leakage loss. Taking into account a modified discharge coefficient model, an inclination of the injection against the tip-leakage flow direction is said to have an even better effect on reducing the tip-leakage loss. To prove the effect, linear cascade measurements have been carried out at three different gap widths from 0.85% to 2.50% chord length. The used geometry is an up-scaled turbine blade tip cross section with w
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Fleder, Annika, Frank Hassert, and Martin Böhle. "A Comparison Between a New Blade Design Model for Side Channel Pumps and Standard Side Channel Pump Blade Design in Terms of Performance and Flow Topology." In ASME 2024 Fluids Engineering Division Summer Meeting collocated with the ASME 2024 Heat Transfer Summer Conference and the ASME 2024 18th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/fedsm2024-130975.

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Abstract Side channel pumps are low specific speed pumps with high head and low flows. The ability to process high amounts of gas in the fluid as well as the self-priming makes them a perfect match for oil and gas applications. In recent years, more attention is paid to side channel pumps especially due to their benefits in LNG (liquid natural gas) applications, e.g. as fuel pump to fulfill the increasing emission limits of cargo vessels by dual fuel or LNG propulsion. To increase the performance of side channel pumps by increasing head and efficiency, the blade shape is investigated more in d
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Carassale, Luigi, Francesca Coletti, Roberto Guida, Michela Marrè-Brunenghi, and Elena Rizzetto. "Multi-Channel Spectral Analysis of Non-Synchronous Vibrations of Bladed Disks Measured by Blade Tip Timing." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-15512.

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Abstract The paper proposes a method for the processing of BTT data deriving from non-synchronous vibrations measured at constant rotor speed by a set of non-uniformly distributed sensors. The sampled data are interpreted as members of a vector space whose characteristics are determined by the signal itself and by sampling pattern. If the signal contains a single harmonic component, its frequency can be estimated through a method that has been named harmonic matching. On the contrary, when more than one harmonic component is present, due to a multi-modal response, a component separation proces
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Hildebrandt, A. "Numerical Analysis of Overall Performance and Flow Phenomena of an Automatically Optimized Three-Dimensional Return Channel System for Multistage Centrifugal Compression Systems." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68559.

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For multi-stage compression systems, besides the aerodynamics of the impeller and the diffuser, the U-turn and return channel blades aerodynamics play an important role for the total stage efficiency of the compression system. Due to modern CAD and CAM methodology, three-dimensional blade surfaces of an impeller but also of return channel blades are easily designed and manufactured at a similar price as old-fashioned two-dimensional blade designs. This paper presents the numerical analysis and aerodynamic optimization of a three-dimensional return channel system for multi stage single shaft ce
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Srinivasan, Balamurugan, Anand Dhamarla, Chandiran Jayamurugan, and Amarnath Balu Rajan. "Numerical Studies on Effect of Channel Orientation in a Rotating Smooth Wedge-Shaped Cooling Channel." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26560.

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The increasing demands of better efficiency of modern advanced gas turbine require higher turbine inlet temperatures, which gives great challenges to turbine blade designers. However, the temperature limits of turbine blade material are not high enough to ensure its survival in such incredible operating temperature. Hence, both internal and external cooling approaches have been developed and widely used in today’s turbine blade. To internal cooling problems, a variety of cooling enhancement approaches, such as impingement and turbulators, are employed in order to meet the different needs in le
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Sharma, Prateek, Bittagopal Mondal, and Gautam Biswas. "Flow and Heat Transfer Characteristics in Ribbed Channel Using Lattice Boltzmann Method." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17676.

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In order to improve the efficiency of the gas turbines and power plants, researchers have aimed to reach higher turbine inlet temperatures. There is always a metallurgical limit for highest temperature, as the materials pertaining to turbine cannot withstand very high temperature due to change in material properties. Deformation, creeping and even melting of turbine blades may occur. To alleviate these, researchers have been trying to evolve the cooling systems for turbine blades. Two major cooling strategies involve (a) external cooling and (b) internal cooling. In case of internal cooling, a
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Nourin, Farah Nazifa, and Ryoichi S. Amano. "Exploring the Effects of Pin-Fins in a Gas Turbine Blade Internal Cooling Channel." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-101359.

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Abstract The narrow cooling passage of the internal section of the turbine blades is one of the complicated zones of the gas turbine system. It confronts a high temperature. Pin-fins are an excellent structure to insert in this section to ensure effective cooling. It accomplishes a higher heat transfer coefficient. Pin-fins are also implemented as a mechanical structure to bridge the thin metallic pressure surface and suction surface. However, the pressure drop is significantly higher in the case of pin-fin cooling, which can lower the thermal performance of the cooling channel. The optimizati
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Amano, R. S., Krishna Guntur, Jose Martinez Lucci, and Yu Ashitaka. "Study of Flow Through a Stationary Ribbed Channel for Blade Cooling." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-23031.

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The firing temperature in gas turbine relates itself directly to the power output and the efficiency of the turbine. The higher the firing (operating) temperatures, higher the wall temperature of blades. However, an increase in the firing temperature is limited by the first stage blade material properties. This is because the higher firing temperature may cause a creep rupture, oxidizing, melting and ultimately failing of blades. Prior to blade cooling, the firing temperature was the same as the blade material temperature. Advancements in cooling technology have resulted in high firing tempera
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Reports on the topic "Blade channel"

1

Singh, Gyanender, Jacob P. Gorton, Danny Schappel, Benjamin S. Collins, Nicholas R. Brown, and Brian D. Wirth. Impact of Control Blade Insertion on the Deformation Behavior of SiC-SiC Channel Boxes in Boiling Water Reactors. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1615808.

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Gauntt, R., R. Gasser, and L. Ott. The DF-4 fuel damage experiment in ACRR (Annual Core Research Reactor) with a BWR (Boiling Water Reactor) control blade and channel box. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/5101359.

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Schattman, Rachel. Farming the floodplain: New England river governance in a changing climate (Hand-outs). USDA Northeast Climate Hub, 2017. http://dx.doi.org/10.32747/2017.6956534.ch.

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You are worried about flood impacts from the river that borders your property. While you have
 considered building a levee and placing stones along the bank to protect you land and house
 from erosion, you do not have the equipment or expertise to do so. Additionally, you have seen
 water velocity in the river increase because the farmer upstream has channeled the river. You
 blame the farmer for putting your land and house at greater flood risk. You think that upstream
 land should be allowed to flood to slow water velocity and absorb floodwaters; this would
 pro
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4

Ding, Yan, Q. Chen, Ling Zhu, Julie Rosati, and Bradley Johnson. Implementation of flexible vegetation into CSHORE for modeling wave attenuation. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/43220.

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This technical report presents the new numerical modeling capabilities for simulating wave attenuation and mean water level changes through flexible vegetation such as smooth cordgrass in coastal and marine wetlands. These capabilities were implemented into the Cross-SHORE (CSHORE) numerical model. The biomechanical properties of vegetation such as dimensions, flexibility, and bending strength are parameterized in terms of the scaling law. Correspondingly, a new formulation of the vegetation drag coefficient, CD, is developed using field data from a salt marsh in Terrebonne Bay, LA, by conside
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Estache, Antonio, and Tomás Serebrisky. Updating Infrastructure Regulation for The 21st Century in Latin America and the Caribbean. Inter-American Development Bank, 2020. http://dx.doi.org/10.18235/0002159.

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This paper argues that, while most countries in Latin America and the Caribbean have managed to significantly improve the short-term efficiency of their infrastructure services since the widespread liberalization of the 1990s, they have been slow to ensure a fair distribution of the gains. They have also been slow in making the investments needed to ensure the prospects of future generations, including by protecting the environment for the long term. The paper places at least part of the blame on regulatory failures. It also shows how past mistakes can be corrected by the significant sectoral
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Martinez-Bravo, Monica, and Carlos Sanz. Trust and accountability in times of pandemics. Banco de España, 2023. http://dx.doi.org/10.53479/29471.

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The COVID-19 pandemic took place against the backdrop of growing political polarization and distrust in political institutions in many countries. Did deficiencies in government performance further erode trust in public institutions? Did citizens’ ideology interfere with the way they processed information on government performance? To investigate these two questions, we conducted a pre-registered online experiment in Spain in November 2020. Respondents in the treatment group were provided information on the number of contact tracers in their region, a key policy variable under the control of re
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Martinez-Bravo, Monica, and Carlos Sanz. Trust and accountability in times of pandemic. Banco de España, 2023. http://dx.doi.org/10.53479/25027.

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The COVID-19 pandemic took place against the backdrop of growing political polarization and distrust in political institutions in many countries. Furthermore, most governments fell short of expectations in their management of the pandemic. Did deficiencies in government performance further erode trust in public institutions? Did citizens’ ideology interfere with the way they processed information on government performance? To investigate these two questions, we conducted a preregistered online experiment in Spain in November 2020. Respondents in the treatment group were provided information on
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8

Olsson, Olle. Industrial decarbonization done right: identifying success factors for well-functioning permitting processes. Stockholm Environment Institute, 2021. http://dx.doi.org/10.51414/sei2021.034.

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1 Introduction 1.1 The urgency of industrial decarbonization The last few years have seen several of the world’s largest carbon dioxide-emitting countries and leading heavy industry companies committing to mid-century net-zero targets (Buckley 2021; Denyer and Kashiwagi 2020; McCurry 2020; Myers 2020). Consequently, the discussion on economy-wide transition to net-zero is accelerating, with focus shifting from “if” to “when” and “how”, even for heavy industry sectors like steel, cement and chemicals. This makes it increasingly urgent to analyse not just whether it is technologically feasible t
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