We introduce a low Mach number equation set for the large-scale numerical simulation of carbon-oxygen white dwarfs experiencing a thermonuclear deflagration. Since most of the interesting physics in a Type Ia supernova transpires at Mach numbers from 0.01 to 0.1, such an approach enables both a considerable increase in accuracy and a savings in computer time compared with frequently used compre...

We present numerical solutions of weak shock Mach reflections that contain a remarkably complex sequence of supersonic patches, triple points, and expansion fans immediately behind the leading triple point. This structure resolves the von Neumann triple point paradox of weak shock Mach reflection. During the second world war, von Neumann carried out an extensive study of shock reflection [5]. H...

We prove uniform existence results for the full Navier-Stokes equations for time intervals which are independent of the Mach number, the Reynolds number and the Péclet number. We consider general equations of state and we give an application for the low Mach number limit combustion problem introduced by Majda in [18].

NPS is a real-time network engine provided by RealTime Mach for real-time applications and distributed multimedia systems. NPS provides a framework for implementing real-time network protocols which are able to bound end-to-end delay and throughput. Real-Time Mach also provides a framework to select the suitable implementations of a network protocol implemented in di erent network engines.

BACKGROUND Machiavellianism is a personality trait characterized by emotional detachment and tendency to manipulate others to achieve one's own goal. It is presumed that people high in Machiavellianism would more likely choose business-related occupations, whereas low Machiavellians would prefer helping professions, therefore medical professionals are expected to be low-Machs. SUBJECTS AND ME...

In the framework of a multi-phase transport model (AMPT) with both partonic and hadronic interactions, azimuthal correlations between trigger particles and associated scattering particles have been studied by the mixing-event technique. The momentum ranges of these particles are 3 < p T < 6 GeV/c and 0.15 < p assoc T < 3 GeV/c (soft), or 2.5 < p trig T < 4 GeV/c and 1 < p T < 2.5 GeV/c (hard) i...

for a 16-bit uniprocessor. Under the weight of changing Abstract needs and technology, Unix has been modified to provide a staggering number of different mechanisms for managing obThe Mach operating system can be used as a system software kernel which can support a variety of operating jects and resources. In addition to pipes, Unix versions now system environments. Key elements of the Mach des...

In this paper, a simple, non-sensitive, robust, and accurate computational procedure is presented and it does not require a prior knowledge of a reference trajectory for computing the optimum trajectory for minimum-time-toclimb to a prescribed final altitude of a supersonic aircraft. From the program, we fnst generate the possible range of initial Mach numbers, initial altitudes and climb times...

A procedure for tailoring a blended wing-body con guration to reduce its computed wave drag is described. The method utilizes an iterative algorithm within the framework of rst-order linear theory. Four computed examples are included. In each case, the zero-lift wave drag was reduced without an increase in drag due to lift. Introduction In the initial rough-cut state of supersonic conguration d...

We investigate the hydrodynamics of threedimensional classical Bondi-Hoyle accretion. A totally absorbing sphere of different sizes (1, 0.1 and 0.02 accretion radii) moves at different Mach numbers (0.6, 1.4, 3.0 and 10) relative to a homogeneous and slightly perturbed medium, which is taken to be an ideal, nearly isothermal, gas ( = 1:01). We examine the influence of Mach number of the flow an...