Relevant bibliographies by topics / Cobra probe

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Conference papers

Academic literature on the topic 'Cobra probe'

Author: Grafiati
Published: 4 June 2021
Last updated: 19 February 2022

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Journal articles on the topic "Cobra probe"

1

De Guzman, M. M., C. A. J. Fletcher, and J. D. Hooper. "Computational Investigation of Cobra probe operation." International Journal of Numerical Methods for Heat & Fluid Flow 4, no. 5 (May 1994): 425–45. http://dx.doi.org/10.1108/eum0000000004047.

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De Guzman, M. M., C. A. J. Fletcher, and M. Behnia. "Gas particle flows about a Cobra probe with purging." Computers & Fluids 24, no. 2 (February 1995): 121–34. http://dx.doi.org/10.1016/0045-7930(94)00026-u.

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Miller, E. C., M. R. L’Ecuyer, and E. F. Benisek. "Flow Field Surveys at the Rotor Inlet of a Radial Inflow Turbine." Journal of Engineering for Gas Turbines and Power 110, no. 3 (July 1, 1988): 552–61. http://dx.doi.org/10.1115/1.3240170.

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Experiments were performed using a five-port cobra probe to survey the flow field at the rotor inlet of a 110-mm-dia turbocharger radial inflow turbine wheel. The turbine housing was modified to accommodate a probe insert to position the probe tip 4.1 mm above the rotor tip while preserving the internal contour of the production turbine housing. The cobra probe was traversed axially and circumferentially to determine the rotor inlet flow properties while the turbine was operated at design flow conditions with a reduced turbine inlet temperature. Measurements were made with the probe tip in the
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Coldrick, Simon, Paul Ivey, and Roger Wells. "Considerations for Using 3-D Pneumatic Probes in High-Speed Axial Compressors." Journal of Turbomachinery 125, no. 1 (January 1, 2003): 149–54. http://dx.doi.org/10.1115/1.1515334.

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This paper describes preparatory work towards three-dimensional flowfield measurements downstream of the rotor in an industrial, multistage, axial compressor, using a pneumatic pressure probe. The probe is of the steady-state four-hole cobra probe type. The design manufacture and calibration of the probe is described. CFD calculations have been undertaken in order to assess the feasibility of using such a probe in the high-speed compressor environment where space is limited. This includes effects of mounting the probe in close proximity to the downstream stator blades and whether it is necessa
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Harada, H. "Performance Characteristics of Shrouded and Unshrouded Impellers of a Centrifugal Compressor." Journal of Engineering for Gas Turbines and Power 107, no. 2 (April 1, 1985): 528–33. http://dx.doi.org/10.1115/1.3239765.

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The overall performance of shrouded and unshrouded identical impellers of a centrifugal compressor were tested and compared. A closed loop test stand with Freon gas as the working fluid was employed for the experiments. The inlet and outlet velocity distributions of both impellers were measured using a three-hole cobra probe and a hot-film probe to determine the velocity distribution and unsteady flows due to wakes and inlet stall.
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An, Jian-xiong. "Trigeminal Neuralgia Induced by Cobra Venom in the Rat Leads to Deficits in Abilities of Spatial Learning and Memory." Pain Physician 2;18, no. 2;3 (March 14, 2015): E207—E216. http://dx.doi.org/10.36076/ppj/2015.18.e207.

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Background: Patients with chronic pain usually suffer from cognitive impairment, with memory deterioration being the most common deficit that affects daily functioning and quality of life. The causes for this impairment are not clear despite intensive clinical studies. Few studies have evaluated impaired learning using animal models of persistent pain. Objective: In this study, a new trigeminal neuralgia model induced by cobra venom was adopted to explore effects of chronic pain on spatial learning and memory in rats. Study Design: Controlled animal study. Setting: Department of Anesthesiology
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An, Jianxiong. "Trigeminal Neuralgia Induced by Cobra Venom Leads to Cognitive Deficits Associated with Downregulation of CREB/BDNF Pathway." Pain Physician 2, no. 20;2 (February 14, 2017): 53–67. http://dx.doi.org/10.36076/ppj/2017/67.

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Background: Chronic pain often results in cognitive impairment. Our previous study showed that trigeminal neuralgia induced by cobra venom leads to spatial learning and memory deficits, although the underlying mechanism remains unclear. However, recent evidence indicates that the c-AMP-responsive element binding protein (CREB)/brain derived neurotrophic factor (BDNF) pathway plays a critical role in various etiologies of cognitive deficits. Objectives: Our aim was to explore the CREB/BDNF pathway to determine the molecular mechanisms involved in the pathogenesis of cognitive impairment caused
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Chen, J., B. S. Haynes, and D. F. Fletcher. "Cobra probe measurements of mean velocities, Reynolds stresses and higher-order velocity correlations in pipe flow." Experimental Thermal and Fluid Science 21, no. 4 (May 2000): 206–17. http://dx.doi.org/10.1016/s0894-1777(00)00004-2.

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Aripov, T. F., U. M. Beknazarov, and V. G. Omel'yanenko. "An investigation of the interaction of cobra venom cytotoxins with liposomes by the fluorescent-probe method." Chemistry of Natural Compounds 22, no. 6 (November 1986): 703–6. http://dx.doi.org/10.1007/bf00598357.

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Li, Chun Guang, Yang Liu, and John C. K. Cheung. "Wind Tunnel Test of Honeycomb in Improving Flow Quality." Advanced Materials Research 774-776 (September 2013): 275–78. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.275.

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The function of honeycomb with different length and width in improving flow quality were studied in the course of building a new small section open loop wind tunnel. Instantaneous velocities of turbulent flow in the tunnel were measured by cobra probe. The focus of this study was put on the effect of the honeycomb in attenuating the total turbulence intensity including the free-turbulence carried by the incoming flow and the turbulence generated by the square cells themselves. The change tendency of the mean wind velocity and the total turbulence characteristics in the decay area have been stu
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Dissertations / Theses on the topic "Cobra probe"

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Stephens, Arthur William, and arthur stephens esb ie. "Aerodynamic Cooling of Automotive Disc Brakes." RMIT University. Aerospace, Mechanical and Manufacturing Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070108.121737.

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Sufficient heat dissipation is crucial to the effective operation of friction based braking systems. Such cooling is generally provided by ensuring a sufficient supply of cooling air to the heated components, hence the aerodynamics in the region of the brake components is extremely important. The objective of the research was to develop an understanding of how aerodynamics could be used to improve the cooling of automotive disc brakes. Two separate sets of wind tunnel experiments were developed. Tests were performed on a vented disc (rotor) to measure the internal flow through the
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Brundin, Desirée. "An Experimental Study of the High-Lift System and Wing-Body Junction Wake Flow Interference of the NASA Common Research Model." Thesis, KTH, Optimeringslära och systemteori, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209242.

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This thesis investigates the turbulent flow in the wake of the wing-body junction of the NASA Common Research Model to further reveal its complex vortical structure and to contribute to the reference database used for Computational Fluid Dynamics validation activities. Compressible flows near two wall-boundary layers occurs not only at the wing-body junction but at every control surface of an airplane, therefore increased knowledge about this complex flow structure could potentially improve the estimates of drag performance and control surface efficiency, primarily for minimizing the environme
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Ng, Eton Yat-Tuen, and eton_ng@hotmail com. "Vehicle engine cooling systems: assessment and improvement of wind-tunnel based evaluation methods." RMIT University. Aerospace, Mechanical and Manufacturing Engineering, 2002. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080422.100014.

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The high complexity of vehicle front-end design, arising from considerations of aerodynamics, safety and styling, causes the airflow velocity profile at the radiator face to be highly distorted, leading to potentially reduced airflow volume for heat dissipation. A flow visualisation study showed that the bumper bar significantly influenced the cooling airflow, leading to three-dimensional vortices in its wake and generating an area of relatively low velocity across at least one third of the radiator core. Since repeatability and accuracy of on-road testing are prejudiced by weather condit
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Lyu, Pu-Hsien, and 呂普賢. "Cobra venom toxins binding to their potential target as probed by SPR." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/yea893.

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El, Masri Ghaleb. "Single Molecule Imaging of Membrane Proteins: A study of the CorA Transporter by Scanning Probe Microscopy." Thesis, 2009. http://hdl.handle.net/1807/18287.

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Elucidating the structure-function relationships of membrane proteins is critical for the design of therapeutic agents to treat disease and for understanding numerous cellular processes such as signal transduction and molecular or ion transport. Recent advances in the application of correlated single molecule imaging techniques have provided new insights into protein-protein and protein-membrane interactions. To demonstrate the potential of these approaches, we have used in situ atomic force microscopy and single molecule fluorescence microscopy to characterize the interactions between membr
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Books on the topic "Cobra probe"

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ill, Basu Suddhasattwa, ed. Cobra in my kitchen: Stories, poems & prose pieces. New Delhi: Rupa & Co., 2005.

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Conference papers on the topic "Cobra probe"

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Huang, Jung-Tang, Hou-Jun Hsu, Pen-Shan Chao, Kuo-Yu Lee, Chan-Shoue Wu, Sheng-Hsiung Shih, Ming-Zhe Lin, Feng-Yue Lee, and Zheng-Chang Lan. "Fabrication of a MEMS-Based Cobra Probe." In 2007 IEEE Conference on Electron Devices and Solid-State Circuits. IEEE, 2007. http://dx.doi.org/10.1109/edssc.2007.4450249.

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Coldrick, Simon, Paul Ivey, and Roger Wells. "Considerations for Using 3D Pneumatic Probes in High Speed Axial Compressors." In ASME Turbo Expo 2002: Power for Land, Sea, and Air. ASMEDC, 2002. http://dx.doi.org/10.1115/gt2002-30045.

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This paper describes preparatory work towards three dimensional flowfield measurements downstream of the rotor in an industrial, multistage, axial compressor, using a pneumatic pressure probe. The probe is of the steady state four hole cobra probe type. The design manufacture and calibration of the probe is described. CFD calculations have been undertaken in order to assess the feasability of using such a probe in the high speed compressor environment where space is limited. This includes effects of mounting the probe in close proximity to the downstream stator blades and whether it is necessa
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Lippett, D., G. Woollatt, P. C. Ivey, P. Timmis, and B. A. Charnley. "The Design, Development and Evaluation of 3D Aerofoils for High Speed Axial Compressors: Part 1 — Test Facility, Instrumentation and Probe Traverse Mechanism." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68792.

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This paper, in two parts, reports measurements from, and simulation of, Cranfield University’s 3-stage high-speed axial compressor. Using this newly built rig, supported by European Commission, a consortium of gas-turbine companies have tested a set of conventionally stacked 2D rotor and stator blades. The results from this experiment were used to evaluate and assess the performance of several commercially available CFD codes leading to the collaborative design of an advanced three-dimensional blade set seeking, if possible, a 2% efficiency gain. The limited axial spacing between the measureme
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Jaatinen, Ahti, Teemu Turunen-Saaresti, Aki Grönman, Pekka Röyttä, and Jari Backman. "Experimental Study of the Effect of the Tip Clearance to the Diffuser Flow Field and Stage Performance of a Centrifugal Compressor." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68445.

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The effect of tip clearance to the centrifugal compressor diffuser flow fields and stage overall performance are studied experimentally. The relative tip clearance (tip clearance divided by the impeller exit blade height) is increased by shimming the shroud side casing of a high-speed variable speed driven industrial centrifugal compressor. Four different relative tip clearances are studied: 0.027, 0.053, 0.082, and 0.106. The stage efficiency and pressure ratios are measured, as well as the diffuser flow fields. The diffuser flow fields are measured both at the diffuser inlet and outlet. The
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Mallipudi, Susheela, M. Selig, and K. Long. "Use of a Four Hole Cobra Pressure Probe to Determine the Unsteady Wake Characteristics of Rotating Objects." In 24th AIAA Aerodynamic Measurement Technology and Ground Testing Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-2299.

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Zachos, Pavlos K., Vassilios Pachidis, Bernard Charnley, and Pericles Pilidis. "Flowfield Investigation of a Compressor Cascade at High Incidence—Part 1: Pneumatic Probe Measurements." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59906.

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The performance prediction of axial flow compressors and turbines still relies on the stationary testing of blade cascades. Most of the blade testing studies are done for operating conditions close to the design point or in off-design areas not too far from it. However, blade performance remains unexplored at very far off-design conditions, such as windmilling, characterised by operation under extremely low mass flows and rotational speeds which, in turn, imply highly negative incidence angle values. In this paper, the flow field generated by a 3-dimensional linear compressor cascade at a high
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Kassens, I., and M. Rautenberg. "Flow Measurements Behind the Inlet Guide Vane of a Centrifugal Compressor." In ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/98-gt-086.

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In a centrifugal compressor adjustable inlet guide vanes (IGV) in front of the impeller are used to regulate the pressure ratio and the mass flow. The stationary measurement of the velocity profile in front of the impeller with different angles of the IGV displays shock losses at the inlet edge of blade of the impeller. In the partial-load region (e.g. partial-load efficiency) the radial distribution of the flow influences considerably the performance of the impeller. The tested compressor consists of an adjustable IGV with straight vanes, a shrouded impeller and a vaneless, parallel diffuser.
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Chima, R. V., E. R. McFarland, J. R. Wood, and J. Lepicovsky. "On Flowfield Periodicity in the NASA Transonic Flutter Cascade: Part II — Numerical Study." In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0573.

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The transonic flutter cascade facility at NASA Glenn Research Center was redesigned based on a combined program of experimental measurements and numerical analyses. The objectives of the redesign were to improve the periodicity of the cascade in steady operation, and to better quantify the inlet and exit flow conditions needed for CFD predictions. Part I of this paper describes the experimental measurements, which included static pressure measurements on the blade and endwalls made using both static taps and pressure sensitive paints, cobra probe measurements of the endwall boundary layers and
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Wilkes, Jason, Natalie Smith, Balaji Venkataraman, Marco Vagani, and Sara Goucher. "Experimentally Measured Effectiveness of Different Shroud Swirl Brake Profiles in a Centrifugal Compressor." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91676.

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Abstract As centrifugal compressors are pushed to operate at higher pressures and higher power levels, destabilizing gas forces often increase the challenge of designing a stable rotordynamic system. While technical innovations like damper seals, swirl brakes, and damper bearings that help stabilize compressors are numerous, predicting the impact that these improvements will have on a specific system is somewhat of an art form. To this end, researchers are constantly improving the depth of knowledge on these features so that the impact of these improvements is well defined. In the current work
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Kang, Jeong-Seek. "Experimental Investigation of Nozzle Vane Clocking in a 2-Stage Low Pressure Turbine." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25604.

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This study presents an experimental investigation on the effects of nozzle clocking in a 2-stage low pressure turbine. The objective was to incorporate the clocking test results into a new turboshaft engine. The test turbine was manufactured with the same aero geometries between the transition duct of the turbine inlet and the exit expansion duct as that of the development engine and it was tested under the same engine representative conditions. Two miniature Cobra probes were used to measure the turbine inlet and exit flow, both circumferentially for 30° and radially over the range of 2% ∼ 98
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