A5012868514- Cavitation Phenomena in Pumps
- Turbomachinery Performance and Optimization
- Fluid Dynamics and Turbulent Flows
- Hydraulic and Pneumatic Systems
- Heat Transfer Mechanisms
- Aerodynamics and Acoustics in Jet Flows
- Aerodynamics and Fluid Dynamics Research
- Computational Fluid Dynamics and Aerodynamics
- Tribology and Lubrication Engineering
- Refrigeration and Air Conditioning Technologies
- Fluid Dynamics Simulations and Interactions
- Cyclone Separators and Fluid Dynamics
- Corporate Finance and Governance
- Firm Innovation and Growth
- Metallurgical Processes and Thermodynamics
- Plasma and Flow Control in Aerodynamics
- Rocket and propulsion systems research
- Combustion and flame dynamics
- Coronary Interventions and Diagnostics
- Wind and Air Flow Studies
- Rheology and Fluid Dynamics Studies
- Acoustic Wave Phenomena Research
- Gear and Bearing Dynamics Analysis
- Polymer crystallization and properties
- Polymer Foaming and Composites
École nationale supérieure d'arts et métiers
2015-2025
Conservatoire National des Arts et Métiers
2020-2025
HESAM Université
2020-2024
Laboratoire Ingénierie des Fluides Systèmes Énergétiques
2019-2024
Lokman Hekim Üniversitesi
2023
ParisTech
2010-2020
Laboratoire de Dynamique des Fluides
2011-2020
École Normale Supérieure - PSL
2008
Tanabe Research Laboratories
2007
Centre National de la Recherche Scientifique
2001-2006
Abstract Poly (phenylene sulfide) (PPS) is one kind of high‐performance polymer with high thermal stability that can be used widely in different industrial domains. However, according to an investigation the literature, few reviews have comprehensively focused on continuous development PPS applications past decade. To meet this demand, paper provides overall and PPS‐based composites from synthesis process applications. Briefly, introduces materials following topics. First, molecular weight...
A robust CFD model is described, suitable for general three‐dimensional flows with extensive cavitation at large density ratios. The utilizes a multiphase approach, based on volume‐scalar‐equations, truncated Rayleigh‐Plesset equation bubble dynamics, and specific numerical modifications (in finite‐volume solution approach) to promote solutions when present. implemented in the software CFX TASCflow 2.12. validation of was done an inducer designed tested LEMFI. First, physical aspects are...
Reversible phosphorylation and dephosphorylation of key proteins on tyrosine residues are important parts intracellular signaling triggered by hormones other agents. Recent knock-out studies in mice have identified PTP1B as a potential target for the treatment diabetes obesity. As consequence, number academic industrial groups aggressively pursuing development selective inhibitors. In addition, protein-tyrosine phosphatases (PTPs) appear to be critically involved major diseases such cancer...
Abstract In this study, polyurethane‐films loaded with diclofenac were used to analyze the drug release kinetics and mechanisms. For purpose, experimental procedures developed under static dynamic conditions different initial loads of 10, 20, 30%. condition, better simulate biological flow, measurements investigated at flow rates 7.5 23.5 ml/s. These values indicate rate internal carotid artery (ICA) for a normal state body person during exercise, respectively. The data analyzed adjusted by...
The influence of counter-rotation between the inducer and impeller, along with a newly introduced system for their independent rotation on pump cavitation characteristics, has been studied experimentally. Remarkably, this allows users to select co-rotation modes, providing significant operational adaptability. high-speed camera is used analyze vaporization structures closely monitor stability head pressure delivered by during testing phase. For both different types within impeller at three...
This work aims at studying the influence of adding splitter blades on performance a hydraulic centrifugal pump. The studied machine is an ENSIVAL-MORET MP 250.200.400 pump (diameter<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mo>=</mml:mo></mml:math>408 mm, 5 blades, specific speed<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mo>=</mml:mo></mml:math>32), whose impeller designed with and without blades. Velocity pressure fields are computed using unsteady...
It is a known fact that incorporating textures in the contact surfaces can significantly enhance bearing performances. The purpose of this paper to outline effects texture bottom profiles and contour geometries on performances hydrodynamic textured journal bearings. analysis was conducted using computational approach test eight shapes: rectangular, cylindrical, spherical, triangular (TR, T1, T2, T3) chevron. steady-state Reynolds equation for modelling behaviour thin viscous film solved...
A 3D‐CFD simulation of the impeller and volute a centrifugal pump has been performed using CFX codes. The specific speed 32 (metric units) an outside diameter 400 mm. First, 3D flow for with structured grid is presented. sensitivity analysis regarding quality turbulence models were also performed. final model obtained was used quasi‐unsteady impeller‐volute stage. procedure designing volute, nonstructured generation in interface passage between are discussed. This carried out several blades...
The paper presents full 3D numerical simulations and experimental investigations of the cavitating flow through three axial inducers. These inducers are identified by tip blade angle at leading edge β1T=8, 10, 13deg. were carried out LEMFI laboratory (Laboratoire d’Energétique et de Mécanique Fluides Interne) ENSAM-Paris center (Ecole Nationale Supérieure d’Arts Métiers). A review regime modeling cavitation homogeneous model used for this paper’s calculations is first presented. based on a...
Abstract This study aims at experimentally investigating the hydrodynamic behavior of a centrifugal pump, both with and without cavitation. The pump consists an axial inducer, impeller, volute. Three assembly configurations are examined: inducer alone, impeller combined impeller. Particular attention is given to cavitating conditions – low suction pressure four partial flow rates (4 % ϕref, 16 39 78 ϕref), where ϕref defined as coefficient which full-stage achieves optimal performance....
An experimental study on the design of counter-rotating axial-flow fans was carried out. The were designed using an inverse method. In particular, system is to have a pure axial discharge flow. operate in ducted-flow configuration and overall performances are measured normalized test bench. rotation rate each fan independently controlled. relative spacing between can vary from 17% 310%. results show that efficiency strongly increased compared conventional rotor or rotor-stator stage. effects...
In this study, we present a method for prediction of the drug-release profile based on physical mechanisms that can intervene in drug release from drug-carrier. The application presented here incorporates effects concentration and Reynolds number defining circulating flow testing vein. experimental data used relate to diclofenac samples non-degradable polyurethane subjected static continuous flow. This case includes simultaneously three mechanisms: burst-release, diffusion osmotic pressure,...
In the current work, computational fluid dynamics (CFD) technique coupled with experimental investigations has been used in order to study complex phenomena related unsteady flow a centrifugal fan. The studied are interactions and unsteadiness induced by rotating blades motion relatively volute their impact on aeroacoustic behaviour of Thus, three-dimensional two-dimensional simulations have carried out using Reynolds averaged Navier-Stokes approach. Turbulence modelled k-ω-shear stress...