Uncertainty Assessment for CFD Using Error Transport Equation : A Novel Approach for Numerical Error Quantification

ISBN-13: 9783639113440 / Angielski / Miękka / 2009 / 128 str.

Gusheng Hu

Opis

Computational fluid dynamics (CFD) is beingextensively used to study physics of complex flowphenomena and to improve engineering designs.However, the degree of acceptance of CFD results isstill largely dependent on confidence building viacomparison with experiments. The so-called numericaluncertainty (or error) arising from a CFD simulationcan be due to a variety of error sources. The textcovers these numerical error related aspects with anemphasis on the discretization error in regard withits theoretical background and the commonly usedmethods for identification and estimation. A novelapproach, named error transport equation (ETE) methodis formulated, aiming at developing a generalizedalgorithm that can be used in conjunction with CFDcodes to quantify the discretization error in aselected process variable such as velocity andtemperature. It is demonstrated via verificationagainst exact solutions that the ETE technique is aviable tool for quantifying mesh size related errorson a single grid computation. The intended readers ofthis book are researchers and engineers who areinterested in the uncertainty topic and particularlythe error quantification methods.

O autorze

Gusheng Hu received his B.S. in Mechanical Engineering in 2000
from FH-Augsburg, Germany. He earned both the M.S. and Ph.D. in
Mechanical Engineering from the West Virginia University,
Morgantown, WV in 2002 and 2005 respectively. Currently he holds
an engineering position at GE Aviation.