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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Strong scaling of numerical solver for supersonic jet flow configurations

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Author(s):
Junqueira-Junior, Carlos [1] ; Azevedo, Joao Luiz F. [2] ; Panetta, Jairo [3] ; Wolf, William R. [4] ; Yamouni, Sami [5]
Total Authors: 5
Affiliation:
[1] Ecole Natl Super Arts & Metiers, DynFluid Lab, F-75013 Paris - France
[2] IAE, DCTA, ALA, BR-12228904 Sao Jose Dos Campos, SP - Brazil
[3] ITA, DCTA, BR-12228900 Sao Jose Dos Campos, SP - Brazil
[4] Univ Estadual Campinas, Fac Engn Mecan, Rua Mendeleyev 200, BR-13083860 Campinas, SP - Brazil
[5] LatAm Experian DataLab, Sao Paulo, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Journal of the Brazilian Society of Mechanical Sciences and Engineering; v. 41, n. 12 DEC 2019.
Web of Science Citations: 0
Abstract

Acoustics loads are rocket design constraints which push researches and engineers to invest efforts in the aeroacoustics phenomena which is present on launch vehicles. Therefore, an in-house computational fluid dynamics tool is developed in order to reproduce high-fidelity results of supersonic jet flows for aeroacoustic analogy applications. The solver is written using the large eddy simulation formulation that is discretized using a finite-difference approach and an explicit time integration. Numerical simulations of supersonic jet flows are very expensive and demand efficient high-performance computing. Therefore, non-blocking message passage interface protocols and parallel input/output features are implemented into the code in order to perform simulations which demand up to one billion degrees of freedom. The present work evaluates the parallel efficiency of the solver when running on a supercomputer with a maximum theoretical peak of 127.4 TFLOPS. Speedup curves are generated using nine different workloads. Moreover, the validation results of a realistic flow condition are also presented in the current work. (AU)

FAPESP's process: 13/07375-0 - CeMEAI - Center for Mathematical Sciences Applied to Industry
Grantee:Francisco Louzada Neto
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 13/21535-0 - Simulation of large scales and aeroacoustics of perfectly expanded supersonic jets
Grantee:Sami Yamouni
Support Opportunities: Scholarships in Brazil - Post-Doctoral