High‐Order Implicit Time‐stepping with High‐order CENO Methods for Unsteady Three‐Dimensional CFD Simulations

2021 ◽  
Author(s):  
T. B. Nguyen ◽  
H. De Sterck ◽  
L. Freret ◽  
C. P. T. Groth
Keyword(s):  
Three Dimensional ◽  
High Order ◽  
Implicit Time ◽  
Cfd Simulations ◽  
Time Stepping

scholarly journals Parallel Implementation of the SHYFEM Model

2021 ◽  
Author(s):  
Giorgio Micaletto ◽  
Ivano Barletta ◽  
Silvia Mocavero ◽  
Ivan Federico ◽  
Italo Epicoco ◽  
...  
Keyword(s):  
Message Passing ◽  
Message Passing Interface ◽  
Unstructured Grid ◽  
Parallel Implementation ◽  
Three Dimensional ◽  
Implicit Time ◽  
Linear System Of Equations ◽  
Time Stepping ◽  
Fully Implicit ◽  
Sparse Linear System

Abstract. This paper presents the MPI-based parallelization of the three-dimensional hydrodynamic model SHYFEM (System of HydrodYnamic Finite Element Modules). The original sequential version of the code was parallelized in order to reduce the execution time of high-resolution configurations using state-of-the-art HPC systems. A distributed memory approach was used, based on the message passing interface (MPI). Optimized numerical libraries were used to partition the unstructured grid (with a focus on load balancing) and to solve the sparse linear system of equations in parallel in the case of semi-to-fully implicit time stepping. The parallel implementation of the model was validated by comparing the outputs with those obtained from the sequential version. The performance assessment demonstrates a good level of scalability with a realistic configuration used as benchmark.

scholarly journals A numerical investigation of matrix-free implicit time-stepping methods for large CFD simulations

2017 ◽  
Vol 159 ◽  
pp. 53-63 ◽  
Author(s):  
Arash Sarshar ◽  
Paul Tranquilli ◽  
Brent Pickering ◽  
Andrew McCall ◽  
Christopher J. Roy ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Implicit Time ◽  
Cfd Simulations ◽  
Time Stepping ◽  
Matrix Free

scholarly journals High order explicit local time stepping methods for hyperbolic conservation laws

2020 ◽  
Vol 89 (324) ◽  
pp. 1807-1842
Author(s):  
Thi-Thao-Phuong Hoang ◽  
Lili Ju ◽  
Wei Leng ◽  
Zhu Wang
Keyword(s):  
Conservation Laws ◽  
Local Time ◽  
Hyperbolic Conservation Laws ◽  
High Order ◽  
Hyperbolic Conservation ◽  
Time Stepping ◽  
Local Time Stepping
Sign in / Sign up

Export Citation Format

Share Document