A Two Dimensional Numerical Model to Analyze Critical Velocity of High Speed Infrastructure

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Two-Dimensional Numerical Model to Analyze the Critical Velocity of High Speed Infrastructure

This paper illustrates the phenomenon of the critical speed in the range 100300 km/h. A real explanation and a precise calculation of the critical speed seems to rest an unresolved problem in many cases. Some authors, analogous to “Mach effect”, have attributed this phenomenon to the reaching the Rayleigh wave speed of substructure by trains. But this explanation can’t be thorough in many cases...

متن کامل

A three-dimensional numerical model to estimate the fall velocity of sediment particles

The fall velocity of sediment particles plays a key role in sediment transport studies. Researchers have attempted to determine the terminal fall velocity, and most of the studies in this regard have been based on experimental, quasi-experimental, and in-situ measurements. The present study aimed to use a numerical model to estimate the fall velocity of a single sediment particle in distilled a...

متن کامل

A two-dimensional numerical model of a planar solid oxide fuel cell

A two-dimensional CFD model of a planar solid oxide fuel cell (SOFC) has been developed.This model can predict the performance of SOFC at various operating and design conditions.The effect of Knudsen diffusion is accounted in the porous electrode (backing) and reaction zonelayers. The mathematical model solves conservation of electrons and ions and conservation ofspecies. The model is formulate...

متن کامل

Using Graphs to Analyze High-Dimensional Classifiers

In this paper we present a method to extract qualitative information from any classi cation model that uses decision regions to generalize (e.g. neural nets, SVMs, graphical models etc) that is independent on the dimensionality of the data and model. The qualitative information can be directly used to analyze the classi cation strategies employed by a model, and also to directly compare strateg...

متن کامل

High order numerical methods to two dimensional Heaviside function integrals

In this paper we design and analyze a class of high order numerical methods to two dimensional Heaviside function integrals. Inspired by our high order numerical methods to two dimensional delta function integrals [19], the methods comprise approximating the mesh cell restrictions of the Heaviside function integral. In each mesh cell the two dimensional Heaviside function integral can be rewrit...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: International Journal of Railway Technology

سال: 2014

ISSN: 2049-5358

DOI: 10.4203/ijrt.3.2.4