Compressible rotational deformation

Geological Constraints on Tidal and Rotational Deformation on Europa

Europa surface spectra reveal that its main constituents are in the form of ices. Between them frost H2O [1] is dominant although traces of CO2 [2], SO2 [3][4], O2 [5] and H2O2 [6] have also been found. Other compounds found mainly in the darker regions are hydrated materials [7][8]. Europa is located inside the intense magnetosphere of the giant Jupiter. The magnetosphere is populated by proto...

Crustal rigidity and rotational deformation of neutron stars

Aims. We calculate parameters A and B of the Baym-Pines model of the hydro-elastic equilibrium of rotating neutron stars. Parameter A determines the energy increase of a non-rotating star due to a quadrupolar deformation of its shape. Parameter B determines residual quadrupolar deformation due to the crustal shear strain, in a neutron star that spun-down to a non-rotating state. Methods. The ca...

Dynamic estimation of three-dimensional cerebrovascular deformation from rotational angiography.

PURPOSE The objective of this study is to investigate the feasibility of detecting and quantifying 3D cerebrovascular wall motion from a single 3D rotational x-ray angiography (3DRA) acquisition within a clinically acceptable time and computing from the estimated motion field for the further biomechanical modeling of the cerebrovascular wall. METHODS The whole motion cycle of the cerebral vas...

Multiscale Dynamics of 2D Rotational Compressible Euler Equations — an Analytical Approach

We study the 2D rotational compressible Euler equations with two singular parameters: the Rossby number for rotational forcing and the Froude/Mach number for pressure forcing. The competition of these two forces leads to a newly found parameter δ = τσ−2 that serves as a characteristic scale separating two dynamic regimes: δ 1 for the strong rotation regime [CT08] and δ 1 for the mild/weak rotat...

A Two -Step Modification toward Implementing Compressible Source Terms in Low Compressible Flows