This work studies the design of a device conveying dust and sand in order to understand how particles impinge, erode rebound from target plate. The motivation behind this study is understanding ingestion erosion aviation gas-turbine engines. system consists constant area duct which are injected upstream direction using particle seeder. exit through converging nozzle directed towards Particles v...

Broadband shock-associated noise (BBSAN) is an important component of supersonic jet for jets at off-design conditions when the pressure nozzle exit different from ambient. Two high-area-ratio under-expanded ratios (NPRs) 3.4 and 4.2 are considered. The correspond to experiment in Laboratory Turbulence Research Aerospace Combustion (LTRAC) Supersonic Jet Facility Monash University. Flow solutio...

هدف: در قرن 21 رسالت دانشگاه، تربیت نیروی انسانی و نسل آینده‌ای متعهد، مبتکر کارآفرین است بنابراین ایجاد تفکر کارآفرینی ورود به کسب‌ وکار میان دانش‌آموختگان دانشگاهی باعث می‌شود که آنها با بهره‌گیری از استعدادهای بالقوه خود، افرادی خلاق، نوآور شوند خود را باور نمایند. هدف مطالعه حاضر، طراحی الگوی دانشگاه رویکرد سازمانی آموزش عالی بود.طراحی/ روش‌شناسی/ رویکرد: این پژوهش نظر کاربردی-توسعه‌ای، ماه...

The present work is part of a broad effort toward predictive simulations of complex multi-physics flows at high Reynolds numbers. The main objective of the Stanford PSAAP Center (Predictive Science Academic Alliance Program) is to predict the reacting flow in the HyShot II scramjet experiment carried out in the High Enthalphy shock tunnel at Göttingen (HEG) facility of the German Aerospace Agen...

This study contrasts Reynolds-Averaged Navier-Stokes (RANS) and (Numerical) Large-Eddy Simulation (NLES) for their use in predicting conjugate heat transfer a low Reynolds number flow over surface roughness element. The (N)LES predictions are good agreement with experimental data, the estimate is within 7.7% error. linear RANS model shows larger errors up to 40%, especially modelling turbulent ...

This paper presents a new approach for mitigating the unphysical delay in Reynolds-averaged Navier–Stokes (RANS) to large-eddy simulation (LES) transition, often referred as gray area, which is common issue hybrid RANS–LES turbulence models such delayed-detached eddy simulation. An existing methodology designed improving LES performance complex flows adapted and tested. based on reducing numeri...

The present work aims to extend the hybrid non zonal RANS/LES partially integrated transport modeling (PITM) method turbulent flows in presence of passive scalar contaminant for simulating large scales flows. Focussing on methodological aspects, we derive basic equations both variance fluctuations and dissipation-rate variance. basis was introduced references [R. Schiestel A. Dejoan, “Towards a...