INVESTIGADORES
STORTI Mario Alberto
artículos
Título:
Smoothed Surface Gradients for Panel Methods
Autor/es:
D'ELÍA, JORGE; STORTI MARIO; IDELSOHN, SERGIO
Revista:
ADVANCES IN ENGINEERING SOFTWARE
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam, Holanda; Año: 2000 vol. 31 p. 327 - 334
ISSN:
0965-9978
Resumen:
A weak form to compute the dipolar and monopolar surface gradients,
related to a low-order panel method, is shown. The flow problem is
formulated by means of a three-dimensional potential model and the
discretization is based on Morino's formulation for the perturbation
velocity potential. On the body surface, this representation reduces to
a boundary integral equation with the source (or monopolar) and the
doublet (or dipolar) densities. The first of the two is found by
application of the boundary flow condition, and the second one is the
unknown over the body surface. A lower panel method is used for the
analytic integrations of both the monopolar and dipolar influence
coefficients. The surface velocity field is computed after solving the
linear system, with a strong and a weak form of the Stokes theorem,
which is oriented to fairly non-structured panel meshes. The proposed
method is validated by comparing the numerical results with analytical
ones for an isolated sphere and includes a prediction over a car-like
configuration.