Calculation Error due to Mesh Size Applied in QAD-CGGP2.

Unstructured Mesh Methods Applied to Hyperbolic Pdes with Source Terms: Error Estimates and Mesh Quality

The solution of hyperbolic systems with stii source terms is of great importance in areas such as combustion and atmospheric dispersion. The nite-volume approach used here for such problems employs a sophisticated splitting approach for eeciency and adaptive tetrahedral meshes to provide the necessary resolution for physically meaningful solutions. This raises the issues of how to estimate the ...

A Posteriori Error Estimates and Mesh Adaptation Strategy for Discontinuous Galerkin Methods Applied to Diffusion Problems

Calculation of lateral velocity estimation and error discrimination for railway wheelset to avoid sliding

Lateral velocity has very backbone position in the railway vehicle wheelset dynamics as it usually becomes cause of derailment by sliding due to insufficient adhesion ratio. This impropriate balance is pretext owing to contamination and weather procures the disturbances. This perturbation makes hindrances in proper running of wheelset on track. To analyze the noise, Kalman filter is used based ...

Heuristic a posteriori estimation of error due to dissipation in finite volume schemes and application to mesh adaptation

A heuristic method is proposed to estimate a posteriori that part of the total discretization error which is attributable to the smoothing effect of added dissipation, for finite volume discretizations of the Euler equations. This is achieved by observing variation in a functional of the solution as the level of dissipation is varied, and it is deduced for certain test-cases that the dissipatio...

Modified Error Data Normalized Step Size algorithm Applied to Adaptive Noise Canceller

This paper introduces a Modified Error Data Normalized Step Size (MEDNSS) algorithm in which time varying step size depends upon normalization of both error and data vector. An Adaptive Noise Canceller (ANC) is used to improve the system performance in the presence of signal leakage components or signal crosstalk. This ANC consists of three microphones and two adaptive filters that automaticall...