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research-article

Verification of Advective Bar Elements Implemented in the Sierra/Aria Thermal Response Code

[+] Author and Article Information
Brantley Mills

Thermal Sciences and Engineering Department, Sandia National Laboratories, P.O. Box 5800, MS-0836, Albuquerque, NM 87185-0836
bramill@sandia.gov

Adam Hetzler

V&V, UQ, Credibility Processes Department, Sandia National Laboratories, P.O. Box 5800, MS-0836, Albuquerque, NM 87185-0836
ahetzle@sandia.gov

Oscar Deng

Thermal Sciences and Engineering Department, Sandia National Laboratories, P.O. Box 5800, MS-0836, Albuquerque, NM 87185-0836
odeng419@gmail.com

1Corresponding author.

ASME doi:10.1115/1.4041837 History: Received March 05, 2018; Revised October 24, 2018

Abstract

A thorough code verification effort has been performed on a reduced order, finite element model for 1D fluid flow convectively coupled with a 3D solid, referred to as the 'advective bar' model. The purpose of this effort was to provide confidence in the proper implementation of this model within the SIERRA/Aria thermal response code at Sandia National Laboratories. The method of manufactured solutions is applied so that the order of convergence in error norms for successively refined meshes and timesteps is investigated. Potential pitfalls that can lead to a premature evaluation of the model's implementation are described for this verification approach when applied to this unique model. Through observation of the expected order of convergence, these verification tests provide evidence of proper implementation of the model within the codebase.

Sandia National Laboratories (SNL)
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