A5047931556- Combustion and Detonation Processes
- Energetic Materials and Combustion
- Combustion and flame dynamics
- Fire dynamics and safety research
- Advanced Combustion Engine Technologies
- Computational Fluid Dynamics and Aerodynamics
- Structural Response to Dynamic Loads
- Rocket and propulsion systems research
- Gas Dynamics and Kinetic Theory
- Earthquake Detection and Analysis
- African Studies and Geopolitics
- Statistical Methods and Inference
- Granular flow and fluidized beds
- Respiratory Support and Mechanisms
- Vehicle emissions and performance
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Rheology and Fluid Dynamics Studies
- Brake Systems and Friction Analysis
- Global Political and Social Dynamics
- Atmospheric chemistry and aerosols
- Insurance, Mortality, Demography, Risk Management
- Multiculturalism, Politics, Migration, Gender
- Ultrasound in Clinical Applications
- Financial Risk and Volatility Modeling
University of Ottawa
2020-2022
King Abdullah University of Science and Technology
2015-2018
Hôpital Nord
2018
Agropolis International
2018
University of Science and Technology
2018
Korea University of Science and Technology
2018
Centre de Biologie et de Gestion des Populations
2018
Institut National des Sciences Appliquées Rouen Normandie
2013-2015
Complexe de Recherche Interprofessionnel en Aérothermochimie
2013-2015
Normandie Université
2014-2015
Abstract This investigation deals with the study of mean structure a mildly unstable non-ideal detonation wave. The analysis is based on integration one-dimensional reactive Euler equations friction forces using third-order Runge–Kutta scheme and fifth-order weighted essentially non-oscillatory (WENO5) spatial discretization. A one-step Arrhenius reaction mechanism used for modelling chemical reaction. When frictional are active, limit cycle post-shock pressure reveals an enhanced pulsating...
This work was sponsored by competitive research funding from King Abdullah University of Science and Technology. used the resources KAUST Supercomputing Laboratory (KSL).
We use numerical simulations of the reactive Euler equations to analyse nonlinear stability steady-state one-dimensional solutions for gaseous detonations in presence both momentum and heat losses. Our results point a possible stabilization mechanism low-velocity such systems. The stems from existence one-parameter family found Semenko et al. ( Shock Waves , vol. 26 (2), 2016, pp. 141–160).
This study presents a computational framework to predict the outcome of combustion process based on given RANS initial condition by performing statistical analysis Sankaran number, Sa, and ignition regime theory proposed Im et al. [1].A criterion strong auto-ignition/detonation priori is used in this study, which Sankaran-Zeldovich criterion.In context detonation, Sa normalized sound speed, spatially calculated for bulk mixture with temperature equivalence ratio stratifications.The...
Detonations are supersonic combustion fronts, which prone to be unstable and chaotic, all the more since losses invoked. It is thus mandatory get their proper mean structure in order quantify relative importance of different mechanisms losses. Indeed, this case, detonation velocity differs from that given by ideal Chapman-Jouguet (CJ) model. will also shown energy related mechanical fluctuations constitutes another source withdrawal. This physical analysis relies on numerical simulation...
A minimal model for curved detonations is studied, illustrating the role of reaction rate on detonation speed and its propagation limits. The based a simple extension Fickett toy kinematic wave equation. use depletion conditioned shock serves to illustrate in quasi-steady structure waves their initiation from strong blast wave. Calculations self-similar explosion various asymptotic regimes transition self-sustenance link steady structure. We recover formation suggested by He Clavin modelled...
The equations of hydrodynamics are solved for a slow squeeze-Oow in the presence gradient viscosity which, turn, is caused by temperature gradient. induces an asymmetry spreading velocity and drift center mass towards direction where decreasing. Due to this phenomenon, adjacent asperites friction zone between two solids sliding over each other experience effective attraction.