3 edition of **Direct simulation Monte Carlo prediction of on-orbit contaminant deposit levels for HALOE** found in the catalog.

Direct simulation Monte Carlo prediction of on-orbit contaminant deposit levels for HALOE

- 207 Want to read
- 6 Currently reading

Published
**1994**
by National Aeronautics and Space Administration, Langley Research Center, National Technical Information Service, distributor in Hampton, Va, [Springfield, Va
.

Written in English

- Computerized simulation.,
- Halogen occultation experiment.,
- Monte Carlo method.,
- Outgassing.,
- Spacecraft contamination.,
- Upper Atmosphere Research Satellite (UARS)

**Edition Notes**

Statement | Michael S. Woronowicz, Didier F.G. Rault. |

Series | NASA technical memorandum -- 109069. |

Contributions | Rault, Didier F. G., Langley Research Center. |

The Physical Object | |
---|---|

Format | Microform |

Pagination | 1 v. |

ID Numbers | |

Open Library | OL15404108M |

Modeling backward chemical rate processes in the direct simulation Monte Carlo method Article in Physics of Fluids 19(12) January with 8 Reads How we measure 'reads'. A Practical Application of Monte Carlo Simulation in Forecasting Mr. James D. Whiteside II, PE his paper describes a practical application of the Brownian-walk Monte Carlo simulation in forecasting. By setting up a simple spreadsheet and time-dependent historical data, this simple Monte Carlo routine is File Size: KB.

Direct Simulation Monte Carlo Technique For Modeling Of The Environment In The Vicinity Of The Space Shuttle Orbiter. Leonard T. Melfi Jr.; J. E. Hueser; F. J. Brock. Proc. SPIE , Shuttle Optical Environment, pg 86 (19 February ); doi: / Read Abstract +. A triple stage turbo molecular pump is simulated using the DSMC method in 3D. A 90° sector of the complete pump is simulated taking the symmetry of the pump into account. Simulations were performed for various fore line pressures in order to determine the compression ratio and the maximum pumping speed. Various features of the three dimensional flow field are by: 1.

Monte Carlo Methods, the simulation of corresponding models, are used to analyze rare events. This book sets out to present the mathematical tools available for the efficient simulation of rare : Hardcover. Pharmacokinetics, Pharmacodynamics, and Monte Carlo Simulation Selecting the Best Antimicrobial Dose to Treat an Infection level, the actual site of infection, has in-creased. As regulatory agencies request more Monte Carlo simulation to evaluate the prob-ability of achieving a cure at that dose.

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Direct Simulation Monte Carlo Prediction Of On-Orbit Contaminant Deposit Levels For HALOE Michael S. Woronowicz ViGYAN, Inc., Hampton. Virginia Didier F. Rault Langley Research Center, Hampton, Virginia (NASA-TM- I) OIRECT SIMULATION MONTE CARLO PREDICTION OF ON-ORBIT CONTAMINANT DEPOSIT LEVELS FOR HALOE (NASA.

Langley Research Center File Size: 4MB. Get this from a library. Direct simulation Monte Carlo prediction of on-orbit contaminant deposit levels for HALOE. [Michael S Woronowicz; Didier F G Rault; Langley Research Center.].

A three-dimensional version of the direct simulation Monte Carlo method is adapted to assess the contamination environment surrounding a highly detailed model of the Upper Atmosphere Research Satellite. Emphasis is placed on simulating a realistic, worst-case set of flow field and surface conditions and geometric orientations for the satellite in order to estimate an upper limit for the Cited by: 3.

A three-dimensional version of the direct simulation Monte Carlo method is adapted to assess the contamination environment surrounding a highly detailed model of the Upper Atmosphere Research : Michael S. Woronowicz and Didier F. Rault. From Super Bowls to hurricanes, this simulation method helps predict them all.

When Hurricane Sandy began swirling off the coast of Florida inthe earliest forecasts suggested the gigantic storm was unlikely to hit land. If it wasn’t headed for the coast. The total energy of the system divided by k B T is: (1) E T o t a l = ∑ m n N m n E m n where N mn is the total number of mn pairs in the system, k B is the Boltzmann constant, and T is the temperature.

In Eq., only interactions between adjacent beads of different chains were considered. The interaction energies (E mn) can be set independently of each other; however, E mn and E nm were not Author: Zahra Khodadadi, S.

Morteza Mousavi-Khoshdel, Hussein Gharibi, Seyed Majid Hashemianzadeh, Sohaila J. The direct simulation Monte Carlo method for the Boltzmann equation is modified by an additional displacement in the advection process and an enhanced collision rate in order to obtain the exact.

One of the promosing tools is monte carlo simulation. Even though monte carlo simulation id merely an approximation, not an exact solution, but due to its simplicity, it is very useful and powerful, especially as the basis of engineering judgments as well as for better understanding.

The book discesses the applications of monte carlo simulation. • Direct simulation Monte Carlo (DSMC) method is the Monte Carlo method for simulation of dilute gas flows on molecular level, i.e. on the level of individual molecules.

To date DSMC is the basic numerical method in the kinetic theory of gases and rarefied gas dynamics. • Kinetic theory of gases is a part of statistical physics where the flow of gases are considered on a molecular level and described File Size: 1MB.

may be unnecessary to perform a Monte Carlo analysis when the costs of remediation are low. On the other hand, there may be a number of situations in which a Monte Carlo analysis may be useful. For example, a Monte Carlo analysis may be useful when screening calculations using conservative point estimates fall above the levels of Size: KB.

In this article, we’ll introduce Direct Simulation Monte Carlo (DSMC), which is a method for simulating interparticle collisions. It is frequently used to simulate neutral gas flows and to add collisions to plasma simulations.

A three-dimensional version of the direct simulation Monte Carlo method is adapted to assess the contamination environment surrounding a highly detailed model of the Upper Atmosphere Research by: 5.

This study presents a Monte Carlo simulation method designed to describe the growth of oxicuprate films. The basic assumption of the simulation is that the deposition process can be divided in a collisional and a thermal phase and that the collisional phase can be Author: S.

Nicoletti, G. Mattei. A systematic approach for calibrating the direct simulation Monte Carlo (DSMC) collision model parameters to achieve consistency in the transport processes is presented.

The DSMC collision cross section model parameters are calibrated for high temperature atmospheric conditions by matching the collision integrals from DSMC against ab initio based collision integrals that are currently employed Cited by: 9.

Supersonic flow over a blunt body 77 C U M = ∞ (1) Where C is the sound speed of the gas given as m KT C = ∞ ν (2) Where K is the Boltzman constant, m is the molecular mass and υ is the specific heat ratio. (2) The Knudsen number allow to expressed the degree of rarefaction of a gas so thisFile Size: KB.

easily predicted and understood by using Monte Carlo meth- ods than by constructing and solving sets of differential equations. For many problems in gas dynamics a Monte Carlo direct simulation is the preferred method of solution.

In chemical kinetics the simulation of collections of colliding. Direct Simulation Monte Carlo Prediction of On-Orbit Contaminant Deposit Levels for Haloe Added 26 mins ago Star Wars Alien Archive: A Guide to the Species of the Galaxy.

USING THE DIRECT SIMULATION MONTE CARLO APPROACH FOR THE BLAST-IMPACT PROBLEM Anupam Sharma, Lyle N. Longy and Ted Krauthammerz The Pennsylvania State University University Park, PAU.S.A.

The viability of using the Direct Simulation Monte Carlo (DSMC) approach to study the blast-impact problem is assessed. Monte Carlo simulations are then carried out by repeating the above procedure for a large number of realizations.

The main focus of this study is to explore the effects correlated fracture-permeabilities and fracture-widths have on the transport of contaminants. J.H. Monte Carlo Simulation of Contaminant Transport: I. Long-range Cited by: 3.

In fact, Monte Carlo simulation methodology is able to mimic reality better in such cases, providing richer information about the measurand than the GUM traditional approach and its approximations.

In order to demonstrate this effect, one can suppose that the standard deviation found for the values of diameter of the indenter mark were 10 times Cited by:. Direct Simulation Monte Carlo (DSMC) is a particle-based technique for simulating low-density fluid flows -- those with a ratio of mean-free path to geometry scale (the Knudsen number) of.

Financial modelling with oracle crystal ball and excel xi Acknowledgments xvii About the Author xix CHAPTER 1 Introduction 1 Financial Modeling 2 Risk Analysis 2 Monte Carlo Simulation 4 Risk Management 8 Beneﬁts and Limitations of Using Crystal Ball 9 CHAPTER 2 Analyzing Crystal Ball Forecasts 11 Simulating a The Monte Carlo Simulation (MCS) method uses a large number of repeated trials or simulations with the values for stochastic inputs or uncertain variables selected at random from their assumed parent probability distributions to establish an expected range of model by: