Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Continuum saltation model for sand dunes.

G Sauermann1, K Kroy, H J Herrmann

  • 1PMMH, Ecole Supérieure de Physique et Chimie Industrielles (ESPCI), 10, rue Vauquelin, 75231 Paris, Cedex 05, France.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 3, 2001
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Centrality and universality in scale-free networks.

Physical review. E·2026
Same author

Maximum entropy models of neuronal populations at and off criticality.

ArXiv·2025
Same author

A national evaluation of the implementation of guideline recommendations towards antibiotic prophylaxis prior to percutaneous endoscopic gastrostomy and jejunostomy tube placement.

Journal of physiology and pharmacology : an official journal of the Polish Physiological Society·2025
Same author

Adherence and acceptance of a new oral nutritional supplement in cancer patients - a pilot study in crossover design.

Journal of physiology and pharmacology : an official journal of the Polish Physiological Society·2024
Same author

Thermodynamic analog of integrate-and-fire neuronal networks by maximum entropy modelling.

Scientific reports·2024
Same author

Very low-volume interval training improves nonalcoholic fatty liver disease fibrosis score and cardiometabolic health in adults with obesity and metabolic syndrome.

Journal of physiology and pharmacology : an official journal of the Polish Physiological Society·2022
Same journal

Tension on dsDNA bound to ssDNA-RecA filaments may play an important role in driving efficient and accurate homology recognition and strand exchange.

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Amplitude-phase coupling drives chimera states in globally coupled laser networks [Phys. Rev. E 91, 040901(R) (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Shapes of sedimenting soft elastic capsules in a viscous fluid [Phys. Rev. E 92, 033003 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Attenuation of excitation decay rate due to collective effect [Phys. Rev. E 90, 022142 (2014)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Role of connectivity and fluctuations in the nucleation of calcium waves in cardiac cells [Phys. Rev. E 92, 052715 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Lattice Boltzmann approach for complex nonequilibrium flows [Phys. Rev. E 92, 043308 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
See all related articles

We developed a new model for aeolian sand transport that accurately predicts sand flux, even in complex situations like dunes. This tool aids geomorphological applications by simulating sand movement dynamics.

Area of Science:

  • Earth and Planetary Sciences
  • Geophysics
  • Environmental Sciences

Background:

  • Aeolian sand transport is a key geomorphological process.
  • Existing models struggle to accurately predict sand flux in non-equilibrium conditions and over complex terrains.

Purpose of the Study:

  • To derive a phenomenological continuum saltation model for efficient geomorphological applications.
  • To accurately simulate sand flux, including saturation transients, under various wind conditions and over structured terrain.

Main Methods:

  • Developed coupled differential equations for sand density and velocity in the saltation layer.
  • Identified three key phenomenological parameters: grain-air interaction height, grain-bed restitution coefficient, and impact chain reaction factor.
  • Validated the model against wind tunnel measurements and applied it to simulate sand flux on the windward side of an isolated dune.

Related Experiment Videos

Main Results:

  • The model successfully reproduces equilibrium sand flux relations and time evolution predicted by microscopic models.
  • Determined phenomenological parameter values through comparison with experimental data.
  • Demonstrated the necessity of including saturation transients for accurate sand flux prediction over structured terrain, resolving discrepancies with field measurements.

Conclusions:

  • The derived phenomenological continuum saltation model is an efficient tool for geomorphological applications.
  • The model accurately captures out-of-equilibrium dynamics, particularly saturation transients, crucial for understanding sand transport over complex landscapes.
  • This work provides a robust framework for predicting aeolian sand transport, improving upon existing theoretical models and aligning with field observations.