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| 1 | Stall Characteristics and Tip Clearance Effects in Forward Swept Axial Compressor Rotors显示文摘Tilting the blade sections to the flow direction (blade sweep) would increase the operating range of an axial compressordue to modifications in the pressure and velocity fields on the suction surface. On the other band, bladetip gap, though finite, has great influence on the performance of a turbomachine. The present paper investigatesthe combined effect of these two factors on various flow characteristics in a low speed axial flow compressor. Forthis present study, nine computational domains were modeled; three rotor sweep configurations (0°, 20° and 30°)and for three different clearance levels for each rotor. Commercial CFD solver ANSYS CFX 11.0 is used for thesimulations. Results indicated that tip chordline sweep is found to improve the stall margin of the compressor bymodifying the suction surface boundary layer migration phenomenon. Diffusion Factor (DF) contours showed theseverity of stalling with unswept rotor. For the swept rotors, the zones of high probable stall are less severe andthey become less in size with increasing sweep. Increment in the tip gap is found to gradually affect the performanceof unswept rotor, while the effect is very high for the two swept rotors for the earlier increments. As a minimumclearance is unavoidable, swept rotors suffer relatively higher deviation from the idealistic behavior than theunswept rotor due to tip clearance. | Ramakrishna PV Govardhan M | 2009 | Journal of Thermal Science2009，18，1： | 4 |
| 2 | Controllability of molecular systems 显示文摘 | Salapaka M D Rabitz H M Ramakrishna V | 1995 | Physical Review A1995，51，： | 2 |
| 3 | A review on polymer nanofibers by electrospinning and their applications in nanocomposites显示文摘 | Huang Z M Zhang Y Z Kotaki M Ramakrishna S | 2003 | Compos Sci Technol2003，63，15： | 1 |
| 4 | Enzymatic, clinical and histologic evaluation of corneal tissues in experimen- tal fungal keratitis in rabbits 显示文摘 | Gopinathan U Ramakrishna T Willcox M | 2001 | Exp Eye Res2001，72，4： | 1 |
| 5 | Quantum confinement effects in semiconductor clusters显示文摘 | Tomasulo A Ramakrishna M V | 1996 | Journal of chemical physics1996，105，9： | 1 |
| 6 | Theforkhead box Ml transcription factor is essential for em-bryonic development of pulmonary vasculature 显示文摘 | Kim I M Ramakrishna S Gusarova G A | 2005 | J BiolChem2005，280，22： | 1 |
| 7 | Biodegradation of din butyl phthalate (DnBP) in bioaugmented bioslurry phase reactor 显示文摘 | SHAILAJA S RAMAKRISHNA M VENKATA MOHAN S | 2007 | Bioresouree Technology2007，98，8： | 1 |
| 8 | Analysis of the mitogen-activated protein kinase kinase 4 (MAP2K4) tumor suppressor gene in ovarian cancer显示文摘 | Davis S J Choong DY Ramakrishna M | 2011 | BMC Cancer2011，11，： | 1 |
| 9 | Aligned biodegradable nanofibrous structure: a potential scaffold for blood vessel engineering显示文摘 | C.Y Xu R Inai M Kotaki S Ramakrishna | 2003 | Biomaterials2003，，5： | 1 |
| 10 | Characterization of a Knitted Fabric Reinforced Elastomer Composite 显示文摘 | S Ramakrishna H P Dinner | 1999 | Journal of Reinforced Plastics and Composites1999，18，2： | 1 |
| 11 | An efficient and regloselective oxybromination of aromatic compounds using potassium bromide and oxone显示文摘 | Narender N Srinivasu P Ramakrishna Prasad M | 2002 | Synthetic Communications2002，32，15： | 1 |
| 12 | Effect of mulch on soil temperature, moisture, weed infestation and yield of groundnut in northern Vietnam 显示文摘 | Ramakrishna A Tamb H M Wani S P | 2006 | Field Crops Research2006，，95： | 1 |
| 13 | Surface modified nonwovenpolysulphone(PSU)fiber mesh by electrospinning:A novel affini-ty membrane显示文摘 | Ma Zuwei Kotaki M Ramakrishna S | 2006 | J Membr Sci2006，272，12： | 1 |
| 14 | Simple, sensitive and rapid LC- MS- MS method for the quantitation of cerivastatin in human plasma- application to pharmacokinetic studies显示文摘 | RAMAKRISHNA NV KOTESHWARA M VISHWOTTAM KN | 2004 | J Pharma Biomed Anal2004，36，3： | 1 |
| 15 | Effect of mulch on temperature, moisture, weed infestation and yield of ground nut in northern Vietnam显示文摘 | Ramakrishna A Ham M M Wani S P | 2006 | Field Crops Researeh2006，95，： | 1 |
| 16 | Wavelet based image denoising: VQ-Bayesian technique显示文摘 | Sundaresan S N Ramakrishna P V | 1999 | Electronics Letter1999，35，19： | 1 |
| 17 | Codon optimization of the tat antigen of human immunodeficiency virus type 1 generates strong immune responses in mice following genetic immunization显示文摘 | Ramakrishna L Anand K K Mohankumar K M | 2004 | J Virol2004，78，17： | 1 |
| 18 | Electrospun nanostructured scaffolds for bone tissue engineering显示文摘 | Prabhakaran M P Venugopal J Ramakrishna S | 2009 | Acta Biomaterialia2009，5，8： | 1 |
| 19 | Codon optimization of the tat antigen of human immunodeficiency virus type 1 generates strong immune responses in mice following genetic immunization显示文摘 | Ramakrishna L Anand K K Mohankumar K M | 2004 | J Virol2004，78，17： | 1 |
| 20 | BIRCH:a new data clustering algorithm and its applications显示文摘 | Zhang T Ramakrishna R Livny M | 1997 | Journal of Data Mining and Knowledge Discovery1997，1，2： | 1 |
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