Unsteady Wave Drag on a Disturbance Moving Along an Arbitrary Trajectory - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2020

Unsteady Wave Drag on a Disturbance Moving Along an Arbitrary Trajectory

Lucas Gierczak-Galle
  • Fonction : Auteur
Assil Fadle
  • Fonction : Auteur
Maxence Arutkin
  • Fonction : Auteur
  • PersonId : 1047231
Elie Raphael
Michael Benzaquen

Résumé

We derive analytical formulas for the wake and wave drag of a disturbance moving arbitrarily at the air-water interface. We show that, provided a constant velocity is reached in finite time, the unsteady surface displacement converges to its well-known steady counterpart as given by Havelock's famous formula. Finally we assess, in a specific situation, to which extent one can rightfully use Havelock's steady wave drag formula for non-uniform motion (quasi-static). Such an approach can be used to legitimize or discredit a number of studies which used steady wave drag formulas in unsteady situations.
Fichier principal
Vignette du fichier
Gierczak2020.pdf (749.5 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02567480 , version 1 (07-05-2020)

Identifiants

Citer

Lucas Gierczak-Galle, Assil Fadle, Maxence Arutkin, Elie Raphael, Michael Benzaquen. Unsteady Wave Drag on a Disturbance Moving Along an Arbitrary Trajectory. 2020. ⟨hal-02567480⟩
121 Consultations
54 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More