A5066127549- Chaos control and synchronization
- Quantum chaos and dynamical systems
- Nonlinear Dynamics and Pattern Formation
- Nanofluid Flow and Heat Transfer
- Fluid Dynamics Simulations and Interactions
- Fluid Dynamics and Turbulent Flows
- Mathematical and Theoretical Epidemiology and Ecology Models
- Mathematical Biology Tumor Growth
- Chaos-based Image/Signal Encryption
- Advanced Differential Equations and Dynamical Systems
- Spacecraft and Cryogenic Technologies
- Heat Transfer Mechanisms
- Heat Transfer and Optimization
- Control and Stability of Dynamical Systems
- Solar and Space Plasma Dynamics
- Aluminum Alloys Composites Properties
- Metal Forming Simulation Techniques
- Advanced Mathematical Theories and Applications
- MXene and MAX Phase Materials
- Supercapacitor Materials and Fabrication
- Lattice Boltzmann Simulation Studies
- stochastic dynamics and bifurcation
- Rheology and Fluid Dynamics Studies
- Aerospace Engineering and Energy Systems
- Micro and Nano Robotics
University of Sargodha
2024
Institute of Space Technology
2014-2023
Beijing Institute of Technology
2011-2012
Bahauddin Zakariya University
2012
In this work, a novel hyperjerk system, with hyperbolic sine function as the only nonlinear term, is proposed, modification of system proposed by Leutcho et al. First, dynamical analysis on performed and interesting phenomena concerning chaos theory, such route to chaos, antimonotonicity, crisis, coexisting attractors, are studied. For reason, system’s bifurcation diagrams respect different parameter values plotted its Lyapunov exponents computed. Afterwards, synchronization considered,...
Energy generation is currently a serious concern in the progress of human civilization. In this regard, solar energy considered as significant source renewable energy. The purpose study to establish thermal model presence spherical Au-metallic nanoparticles. It numerical work which studies unsteady magnetohydrodynamic (MHD) nanofluid flow through porous disks with heat and mass transfer aspects. Shaped factor nanoparticles investigated using small values permeable Reynolds number. order...
In this paper, we designed multiple control inputs for Rucklidge oscillator through sliding, adaptive, and backstepping techniques. Dynamical stability Lyapunov theory is discussed to check whether the above‐mentioned nonlinear dynamical system stable or not defined controller. Based on error dynamics, adaptive sliding techniques are used such that solution approaches its state with time. Furthermore, simulation results of included in paper confirm controlled analyze applied A brief analysis...
Titanium carbide was formed on graphene nanoplatelets (GNPs) using potassium hexa-fluorotitanate (K2TiF6) salt in the presence of pure aluminium. K2TiF6 - GNPs mixture with titanium to carbon ratio 5:1 heated at a high temperature 900 °C for 1 h under argon atmosphere. Energy dispersive spectroscopy indicated elemental surface GNPs, while verified by X-ray diffraction. Scanning electron microscopy confirmed morphology carbide-coated embedded aluminium melt. Thermal characterisation carried...
In biological sciences, dynamical system of cancer model is well known due to its sensitivity and chaoticity. Present work provides detailed computational study by counterbalancing sensitive dependency on initial conditions parameter values. Cancer chaotic discretized into a nonlinear equations that are solved using the well-known Successive-Over-Relaxation (SOR) method with proven convergence. This technique enables solve large systems more accurate approximation which illustrated through...
Magneto-Hydrodynamic (MHD) flow over an accelerated plate is investigated with partial slip conditions. Generalized Fourier Transform used to get the exact solution not only for uniform acceleration but also variable acceleration. The numerical obtained by using linear finite element method in space and One-Step-θ-scheme time. resulting discretized algebraic systems are solved applying geometric-multigrid approach. Numerical solutions compared transform results. Many interesting results...
Motion stability of a spacecraft is discussed. A canonical Hamiltonian model for liquid sloshing presented moving rigid body. An equivalent mechanical pendulum used to represent the fuel slosh inside container. In this represented by mass, rest mass assumed be stationary. The structure considered an elliptical shape and steady rotation along x-axis taken as major-axis rotation. present analyzed using Lyapunov theory with Casimir energy functions. Conditions instability are derived principal...
Sloshing is the phenomenon which related with free surface movement of fluid inside a container. In this paper, Hamiltonian dynamics method was used to study stability attitude motion for spacecraft liquid sloshing in tank .In article, equivalent mass-spring mechanical model analogue coupled dynamics. equations and Casimir functions found proposed dynamical multi-body liquid-filled system. The conditions instability partially were derived by using Lyapunov function along functions. Numerical...
Abstract Hamiltonian system is a special case of dynamical system. Mostly it used for potential shaping mechanical systems stabilization. In our present work, we are using dynamics to study and control the fuel slosh inside spacecraft tank. Sloshing phenomenon which related with movement fluid container in micro macro scale as well. occurs whenever frequency matches natural container. Such type synchronization may cause structural damage or could be reason moving object's attitude...