Effect of quasi-periodic gravitational modulation on the convective instability in Hele-Shaw cell

T Boulal, S Aniss, M Belhaq, A Azouani - International Journal of Non …, 2008 - Elsevier
The aim of the present paper is to examine the effect of a quasi-periodic gravitational
modulation on the onset of convective instability in Hele-Shaw cell. The quasi-periodic …

Oscillatory regimes and transition to chaos in a Darcy–Brinkman model under quasi-periodic gravitational modulation

K Allali - Chaos, Solitons & Fractals, 2025 - Elsevier
This research paper examines the chaos control in porous media convection by imposing an
external excitation on the system. The excitation is under the form of a quasi-periodic …

Hysteresis suppression for primary and subharmonic 3: 1 resonances using fast excitation

M Belhaq, A Fahsi - Nonlinear Dynamics, 2009 - Springer
We analyze the effect of a fast harmonic excitation on hysteresis and on entrainment area in
a forced van der Pol–Duffing oscillator near the primary and the 3: 1 subharmonic …

Influence of quasi-periodic gravitational modulation on convective instability of reaction fronts in porous media

K Allali, M Belhaq, K El Karouni - Communications in Nonlinear Science …, 2012 - Elsevier
The influence of a time-dependent gravity on the convective instability of reaction fronts in
porous media is investigated in this paper. It is assumed that the time-dependent modulation …

Suppression of hysteresis in a forced van der Pol–Duffing oscillator

A Fahsi, M Belhaq, F Lakrad - Communications in Nonlinear Science and …, 2009 - Elsevier
This paper examines the suppression of hysteresis in a forced nonlinear self-sustained
oscillator near the fundamental resonance. The suppression is studied by applying a rapid …

Stability of a 2-dimensional Mathieu-type system with quasiperiodic coefficients

TJ Waters - Nonlinear dynamics, 2010 - Springer
In the following we consider a 2-dimensional system of ODEs containing quasiperiodic
terms. The system is proposed as an extension of Mathieu-type equations to higher …

Effect of vertical quasi-periodic vibrations on the stability of the free surface of a fluid layer

M Yagoubi, S Aniss - The European Physical Journal Plus, 2017 - Springer
In this paper we examine the effect of vertical quasi-periodic oscillations on the stability of
the free surface of a horizontal liquid layer. The quasi-periodic motion considered here is …

[PDF][PDF] Convection of polymerization front with solid product under quasi-periodic gravitational modulation

K Allali, S Assiyad, M Belhaq - 2014 - e-ndst.kiev.ua
The effect of quasi-periodic gravitational modulation on the convective instability of
polymerization front with solid product is studied in this paper. The model we consider …

Frequency-locking in nonlinear forced oscillators near 3: 1 and 4: 1 resonances

M Belhaq, A Fahsi - Annals of Solid and Structural Mechanics, 2012 - Springer
In this paper, frequency-locking phenomenon in self-excited nonlinear oscillators subjected
to harmonic excitation is investigated near the 3: 1 and 4: 1 subharmonic resonances …

[PDF][PDF] Effect of amplitude modulation of gravitational vibration on convective instability of reaction fronts in porous media

K Allali, M Belhaq - 2013 - m-hikari.com
This paper studies the influence of periodic and quasi-periodic amplitude modulations of
gravitational vibration on the convective instability of reaction fronts in porous media …