Mass-Conserved Solution to the Ffowcs-Williams and Hawkings Equation for Compact Source Regions

A Comparison of Ffowcs Williams-hawkings Solvers for Airframe Noise Applications

A Probabilistic Solution to the Stroock-Williams Equation

We consider the initial boundary value problem u t = µu x + 1 2 u xx (t > 0, x ≥ 0) u(0, x) = f (x) (x ≥ 0) u t (t, 0) = ν u x (t, 0) (t > 0) of Stroock and Williams [12] where µ, ν ∈ IR and the boundary condition is not of Feller's type when ν < 0. We show that when f belongs to C 1 b with f (∞) = 0 then the following probabilistic representation of the solution is valid u(t, x) = E x f (X t) ...

Periodic solution for a delay nonlinear population equation with feedback control and periodic external source

In this paper, sufficient conditions are investigated for the existence of periodic (not necessarily positive) solutions for nonlinear several time delay population system with feedback control. Nonlinear system affected by an periodic external source is studied. Existence of a control variable provides  the extension of  some previous results obtained in other studies. We give a illustrative e...

AIAA 99-0231 Simulation of Acoustic Scattering from a Trailing Edge

Three model problems were examined to assess the diiculties involved in using a hybrid scheme coupling ow computation with the the Ffowcs Williams and Hawkings equation to predict noise generated by v ortices passing over a sharp edge. The results indicate that the Ffowcs Williams and Hawkings equation correctly propagates the acoustic signals when provided with accurate ow information on the i...

the search for the self in becketts theatre: waiting for godot and endgame

this thesis is based upon the works of samuel beckett. one of the greatest writers of contemporary literature. here, i have tried to focus on one of the main themes in becketts works: the search for the real "me" or the real self, which is not only a problem to be solved for beckett man but also for each of us. i have tried to show becketts techniques in approaching this unattainable goal, base...