On the study of transitional low-Reynolds number flows over airfoils operating at high angles of attack and their prediction using transitional turbulence models

J Wauters, J Degroote - Progress in Aerospace Sciences, 2018 - Elsevier
In this survey paper transitional turbulence modeling is approached from the point of view
relevant to small unmanned aerial vehicles (span≈ 1 m), of which the flow is characterized …

Research on multi-disciplinary coupling mechanism between internal flow heat transfer and solid deformation in turbine

Y Zhang, Z Zou, Y Wang, L Yao, J Zeng - Aerospace Science and …, 2024 - Elsevier
The turbine of an aircraft engine involves a multi-disciplinary coupling problem that interacts
among the flow field, temperature field and solid structure. This study focuses on conducting …

Algebraic Nonlocal Transition Modeling of Laminar Separation Bubbles Using Turbulence Models

L Bernardos, F Richez, V Gleize, GA Gerolymos - AIAA Journal, 2019 - arc.aiaa.org
Algebraic transitional extensions for the accurate computation of laminar separation bubbles
are developed for use with k− ω models. The transitional model, based on integral boundary …

RANS modeling of laminar separation bubbles around airfoils at low Reynolds conditions

LF Bernardos, F Richez, V Gleize - AIAA Aviation 2019 Forum, 2019 - arc.aiaa.org
2 ρ∞| u∞| 2) us= velocity component projected onto s direction (ms− 1) f tr= Transition
function us= velocity component projected onto s direction (ms− 1) H= boundary-layer …

The high level of maturity of the elsa cfd software for turbomachinery aerodynamics applications

S Plot - ISABE 2019, 2019 - hal.science
The elsA CFD software developed at ONERA is both a software package capitalizing the
innovative results of research over time and a multipurpose tool for applied CFD and for …

Rans modelling for short and long separation bubbles in flow past low-pressure turbine cascades

S Rajparaand, R Ranjan - Aerospace and Associated …, 2022 - api.taylorfrancis.com
The flow within low pressure turbines (LPTs) at high altitudes is essentially complex,
involving formation of separation bubbles and separation-induced transition. These …

Modélisation de la transition laminaire-turbulent par rugosité et bulbe de décollement laminaire sur les aubes de turbomachines

A Minot - 2016 - hal.science
L'objectif de cette thèse est de faire progresser la modélisation de la transition de couche
limite sur des aubes de turbines basse-pression fortement chargées. Cette modélisation …

Implementation of a Surface Roughness-Based Transition Onset Correction in the γ-R θ t~ Transition Model

A Minot, J Marty, J Perraud… - … Expo: Power for …, 2017 - asmedigitalcollection.asme.org
This paper presents an extension of the γ-R θ t~ transition model of Menter et al.(2006) that
aims to take into account the effect of a specific type of surface roughness on the transition …

Prediction of separation and transition on a low-pressure turbine blade using a RANS grid

R Ranjan, SM Deshpande, R Narasimha - arXiv preprint arXiv:2004.10967, 2020 - arxiv.org
Flow past a high-lift low-pressure turbine (LPT) blade in a cascade could be quite complex
as phenomena like separation and transition are often involved. For a highly loadedT106A …

Modélisation de la transition vers la turbulence d'une couche limite décollée

LFB Barreda - 2019 - hal.science
Le but de cette thèse est de proposer des modèles qui améliorent la précision des
prévisions RANS des bulbes de décollement laminaire. Dans un premier temps, des …