A Parallel Integrated Computational-Statistical Platform for Turbulent Transport Phenomena

TL;DR

This paper introduces an open-source, parallel computational platform for simulating and analyzing homogeneous isotropic turbulence and passive scalar transport, enabling detailed statistical analysis on supercomputers.

Contribution

It provides a novel, user-friendly, parallel implementation of the pseudo-spectral method with comprehensive statistical recording for turbulent transport analysis.

Findings

Verification of well-established turbulent states

Seamless statistical balance of conservation laws

Facilitates construction of transport quantities from turbulent fields

Abstract

In this paper, we present an open-source, automated, and multi-faceted computational-statistical platform to obtain synthetic homogeneous isotropic turbulent flow and passive scalar transport. A parallel implementation of the well-known pseudo-spectral method in addition to the comprehensive record of the statistical and small-scale quantities of the turbulent transport are offered for executing on distributed memory CPU-based supercomputers. The user-friendly workflow and easy-to-run design of the developed package is disclosed through an extensive and step-by-step example. The resulting low- and high-order statistical records vividly verify well-established and fully-developed turbulent state as well as the seamless statistical balance of conservation laws. Post-processing tools provided in this platform would let the user to readily construct multiple important transport quantities from the primitive turbulent fields.