Related Experiment Video
Updated: Apr 5, 2026

Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
Published on: May 1, 2018
A note on stability shifting for the Muskat problem
Diego Córdoba1, Javier Gómez-Serrano2, Andrej Zlatoš3
1Instituto de Ciencias Matemáticas, Consejo Superior de Investigaciones Científicas, C/ Nicolas Cabrera, 13-15, 28049 Madrid, Spain Department of Mathematics, Princeton University, 804 Fine Hall, Washington Road, Princeton, NJ 08544, USA dcg@icmat.es.
Solutions to the Muskat problem can exhibit dynamic stability shifts, transitioning from unstable to stable and back to unstable. Numerical evidence also reveals turning singularities in solutions with specific initial conditions.
Area of Science:
- Fluid dynamics
- Mathematical analysis
- Partial differential equations
Background:
- The Muskat problem describes the interface between two immiscible fluids of different densities in porous media.
- Understanding the stability of these interfaces is crucial for various geophysical and engineering applications.
Purpose of the Study:
- To demonstrate the existence of Muskat problem solutions that exhibit a shift in stability regimes.
- To provide numerical evidence for the development of turning singularities in certain solutions.
Main Methods:
- Analytical investigation of the Muskat problem.
- Numerical simulations to observe solution behavior and singularity formation.
Main Results:
- Existence of solutions that transition from unstable to stable, then back to unstable.
- Numerical observation of turning singularities for solutions with medium-sized L(∞) norm of the initial condition derivative.
Conclusions:
- The stability of Muskat problem solutions is not monotonic and can evolve over time.
- Turning singularities represent a complex phenomenon in fluid dynamics that warrants further investigation.
More Related Videos
16:23Automated, Quantitative Cognitive/Behavioral Screening of Mice: For Genetics, Pharmacology, Animal Cognition and Undergraduate Instruction
Published on: February 26, 2014
07:52Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
Published on: September 18, 2020
Related Concept Videos
Transmission Shafts: Problem Solving
Next, use bending moment diagrams for the shaft to...
Multimachine Stability
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
Pole and System Stability
Simple poles are unique roots of the denominator polynomial. Each simple pole corresponds to a distinct solution to the system's characteristic equation, typically resulting in exponential decay terms in the system's...
Stability
The stability of an LTI system is determined by the roots of its characteristic equation, known as poles. A system is stable if it produces a bounded...
Rolling Resistance: Problem Solving
Stability of Equilibrium Configuration: Problem Solving
Problem-solving in the context of the stability of equilibrium configuration...