We present an algorithm specifically tailored for solving kinetic equations onto GPUs. The efficiency of the algorithm is demonstrated by solving the one-dimensional shock wave structure problem and a two-dimensional low Mach number driven cavity flow. Computational results show that it is possible to cut down the computing time of the sequential codes of two order of magnitudes. The algorithm ...

Using stationary solutions of the linearized two-dimensional Gross-Pitaevskii equation, we describe the “ship wave” pattern occurring in the supersonic flow of a Bose-Einstein condensate past an obstacle. It is shown that these “ship waves” are generated outside the Mach cone. The developed analytical theory is confirmed by numerical simulations of the flow past body problem in the frame of the...

This paper investigates the accuracy and robustness of high order WENO schemes for predicting hypersonic shock wave/boundary layer interaction. The implicit time marching method with unfactored Gauss-Seidel line relaxation is used with a 5th order WENO finite difference scheme for inviscid fluxes. The viscous terms are discretized using a 4th order conservative central differencing. Numerical r...

We have demonstrated displacementand frequency-noise-free laser interferometry (DFI) by partially implementing a recently proposed optical configuration using bidirectional Mach-Zehnder interferometers (MZIs). This partial implementation, the minimum necessary to be called DFI, has confirmed the essential feature of DFI: the combination of two MZI signals can be carried out in a way that cancel...

The particle acceleration process at a shock wave, in the presence of the second-order Fermi acceleration in the turbulent medium near the shock, is discussed as an alternative explanation for the observed flat synchrotron spectra of supernova remnants (SNRs) in molecular clouds. We argue that medium Alfvén Mach number shocks considered by Chevalier (1999) for such SNRs can naturally lead to th...

In this paper we investigate the wave propagation patterns for two simple flow-structure problems. We focus on the study of the propagation speeds of the waves in the fluid and in the structure, as the rigidity of the structure and the Mach number of the undisturbed flow are changing. Some implications concerning the sound emission by inhomogeneities eventually present in the structure are disc...

Within the framework of Euler equations, a numerical study structure self-similar flow for various types negative Mach reflection during diffraction shock wave by wedge is performed. Along with known modes double and triple reflection, qualitatively new mode multiple three-shock configurations observed. Peculiarities transition from to regular when changing angle are noted. Keywords: wave, conf...

I f r o b o t s had the c a p a b i l i t y o f s u p p l y i n g ma­ c h i n e s w i t h w o r k p i e c e s w h i c h a r e n o t p r e o r i e n t e d , t h e r e w o u l d b e a s u b s t a n t i a l i n c r e a s e i n t h e num­ b e r o f r o b o t s used i n i n d u s t r y . A s i g n i f i c a n t c o n t r i b u t i o n to t h i s deve lopmen t w o u l d be a method w h i c h y i e l ...