Blade/casing rubbing interactions in aircraft engines: Numerical benchmark and design guidelines based on NASA rotor 37

Toward improved simulation tools for compressible turbomachinery: assessment of Residual-Based Compact schemes for the transonic compressor NASA Rotor 37

Emission by aircraft engines

Emission of ions and charged soot particles by aircraft engines A. Sorokin, X. Vancassel, and P. Mirabel Central Institute of Aviation Motors, 2 Aviamotornaya str., 111116, Moscow, Russia Centre de Géochimie de la Surface, CNRS and Université Louis Pasteur 1, rue Blessig, F-67084 Strasbourg France Received: 5 September 2002 – Accepted: 15 October 2002 – Published: 13 November 2002 Correspondenc...

task-based language teaching in iran: a mixed study through constructing and validating a new questionnaire based on theoretical, sociocultural, and educational frameworks

جنبه های گوناگونی از زندگی در ایران را از جمله سبک زندگی، علم و امکانات فنی و تکنولوژیکی می توان کم یا بیش وارداتی در نظر گرفت. زبان انگلیسی و روش تدریس آن نیز از این قاعده مثتسنی نیست. با این حال گاهی سوال پیش می آید که آیا یک روش خاص با زیر ساخت های نظری، فرهنگی اجتماعی و آموزشی جامعه ایرانی سازگاری دارد یا خیر. این تحقیق بر اساس روش های ترکیبی انجام شده است.پرسش نامه ای نیز برای زبان آموزان ...

Development of Design and Engineering Engines to support multidisciplinary design and analysis of aircraft

Nowadays designers need a technology that enables them to virtually access their ideas, model the multidisciplinary aspect of a product, manipulate geometry and related knowledge, and investigate multiple design options and configurations. Time efficiency and confidence in the quality of results are two factors which must both be taken into account. Available design support tools and methodolog...

Evolutionary Maintenance for Aircraft Engines

Maintenance and, in particular, maintenance policy plays a major -*art in achieving systems operational effectiveness at minimkm cost. The traditional approach to maintenance planning involves selecting optimal policies from known maintenance strategies such as scheduled inspection, preventive maintenance, corrective maintenance, oncondition maintenance etc. Using a traditional approach one may...