Drag Force on a Starting Plate Scales with the Square Root of Acceleration

Autor: J. Reijtenbagh, M. J. Tummers, J. Westerweel
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Physical Review Letters, 130(17)
ISSN: 0031-9007
Popis: We report results on the instantaneous drag force on plates that are accelerated in a direction normal to the plate surface, which show that this force scales with the square root of the acceleration. This is associated with the generation and advection of vorticity at the plate surface. A new scaling law is presented for the drag force on accelerating plates, based on the history force for unsteady flow. This scaling avoids previous inconsistencies in using added mass forces in the description of forces on accelerating plates.
Databáze: OpenAIRE