An adaptive refinement procedure for transient thermal analysis using nodeless variable finite elementsAn adaptive mesh refinement procedure that uses nodeless variables and quadratic interpolation functions is presented for analyzing transient thermal problems. A temperature based finite element scheme with Crank-Nicolson time marching is used to obtain the thermal solution. The strategies used for mesh adaption, computing refinement indicators, and time marching are described. Examples in one and two dimensions are presented and comparisons are made with exact solutions. The effectiveness of this procedure for transient thermal analysis is reflected in good solution accuracy, reduction in number of elements used, and computational efficiency.
Document ID
19900051325
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ramakrishnan, R. (Old Dominion University Norfolk, VA, United States)
Wieting, Allan R. (NASA Langley Research Center Hampton, VA, United States)
Thornton, Earl A. (Virginia, University Charlottesville, VA, United States)