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| 1 | Experimental and numerical investigation of design optimization of a partial admitted supersonic turbine显示文摘To obtain a high specific work output,the large pressure ratios across the turbine are required.This can be achieved using a supersonic turbine.When the fluid mass flow is low,the impulse kind of one or two stages supersonic turbine is employed.To prevent losses due to low blade aspect ratio and issues related to manufacturing and industrial problems,the turbine is used in partial admission conditions.Studies show that the turbine efficiency is highly dependent on the amount of partial admission coefficient.The turbine efficiency in full admission is high,but the use of partial admission lowers the additional losses.Therefore,there will be a degree of partial admission in which the turbine will have the highest efficiency.The aim of this work is to achieve the optimum partial admission for a special impulse turbine as a case study.Therefore,in the beginning,an appropriate model of losses is presented.Then,using a nonlinear design optimization code,the partial admission of an impulse supersonic turbine is optimized.This code is written using a genetic algorithm.Then,using three-dimensional numerical analysis,the optimal model will be selected.In the optimization problem,the turbine efficiency is the objective function.The amount of design parameters and constraints used in this process are ten and eight,respectively.After the optimization process,prototypes of designed and modified turbines are made and tested.Test results were compared and analyzed.The results showed that the turbine efficiency is improved between 2.5%and 3%depending on various operation conditions. | Reza Aghaei tog Abolghasem M.Tousin | 2013 | Propulsion and Power Research2013，2，1： | 5 |
| 2 | Clinical significance of serum CEA protein and CEA mRNA after resection of colorectal liver metastases 显示文摘 | Kijima M Tog OS Ichikawa Y | 2005 | Amicancer R es2005，25，2： | 1 |
| 3 | The electrostatic and steric- hindrance model for the transport of charged solutes through nanofiltration membranes 显示文摘 | Wang X L Tsuru T Tog oh M | 1997 | J Membr Sci1997，135，： | 1 |
| 4 | Moisture sorption behaviour and thermodynamic characteristics of rice stored in a chamber under chontrolled humidity显示文摘 | Togˇrul H Arslan N | 2006 | Biosystems Engineering2006，95，2： | 1 |
| 5 | Humidity andtemperature effects on invasive and no n-invasive firmness measures显示文摘 | Her tog M L A T M Ben- Arie R Rit h E | 2004 | Postharvest Biology and Technology2004，33，1： | 1 |
| 6 | The effect ofmodified atmospheres on the r ate of quality change in Hassavocado显示文摘 | Her tog M L A T M Nicholson S E Whitmore K | 2003 | Postharvest Biology and Technology2003，，： | 1 |
| 7 | TLR4 gene dosage contributes to endotoxin - induced acute respiratory inflammation显示文摘 | Tog be D Schnyder - Candrian S Schnyder B | 2006 | Leukoc Bio12006，80，1： | 1 |
| 8 | The economic impact of esophageal variceal hemorrhage: cost-effectivehess implications of endoscopic therapy 显示文摘 | Gralnek IM Jenscn DM Kovacs TOG | 1999 | Hepatology1999，29，1： | 1 |
| 9 | A controlled study of ranitdine for the prevention of recurrent haemorrhage from duodenal显示文摘 | Cheng S Kovacs TOG | 1994 | N Eng M1994，330，： | 1 |
| 10 | DNA purification and isolation using a solid-phase显示文摘 | HAWKINS T L O'CONNOR-MORIN T TOG A | 1994 | Nucleic Acids Res1994，22，： | 1 |
| 11 | A low does of a new proton inhibitor LY307640(E3810) effectively inhibits acid secretion in humans显示文摘 | Kovacs TOG Sytnik B Humphries TJ | 1996 | Gastroenterology1996，110，： | 1 |
| 12 | DNA Purifi- cation and Isolation Using a Solid-phase显示文摘 | Hawkins T L OConnor-Morin T Tog A | 1994 | Nucleic Acids Reserrch1994，22，： | 1 |
| 13 | On the age dependency of the macular pigment optical density 显示文摘 | TOGS T T J M BERENDSCHOT NORREN D V | 2005 | Exp Eye Res2005，81，： | 1 |
| 14 | A low does of a new proton inhibitor LY307640(E3810) effectively inhibits acid secretion in humans显示文摘 | Kovacs TOG Sytnik B Humphries TJ | 1996 | Gastroenterology1996，110，： | 1 |
| 15 | Design and CFD analysis of centrifugal compressor for a microgasturbine 显示文摘 | Tog R A Tousi A M Soltani M | 2007 | Aircraft Engineering and Aerospace Technology2007，79，2： | 1 |
| 16 | At surfactant deficiency, application of ' the open lung concept' prevents protein leakage and attenuates changes in lung mechanics 显示文摘 | Hat'tog A Vazquez de Anda GF Gommers D Kaisers U Lachmann B | 2000 | Crit Care Med2000，28，5： | 1 |
| 17 | A controlled study of ranitidine for the prevention of recurrent hemorrhage from duodenal ulcer显示文摘 | Cheng S Kovacs TOG | 1994 | N Engl J Med1994，330，： | 1 |
| 18 | A low does of a new proton inhibitor LY307 640(E3810) effectively inhibits acid secretion in humans显示文摘 | Kovacs TOG Sytnik B Humphries TJ | 1996 | Gastroenterology1996，110，： | 1 |
| 19 | Lecithinized copper, zinc-superoxide dismutase as a protector against doxorubicin-induced cardiotoxicity in mice显示文摘 | Den Hat'tog G J haenen G R Boven E | 2004 | Toxicol Appl Pharmaco12004，194，8： | 1 |
| 20 | Comparison of turbulence methods in CFD analysis of compressible flows in radial turbomachines显示文摘 | Tog R A Tousi A M Tourami A | 2008 | Aircraft Engineering and Aerospace Technology2008，80，6： | 1 |
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