Numerical simulation parallel computing method, device and medium for two-phase wall turbulent flow of ablation particles

By employing a parallel computational method for numerical simulation of turbulent flow through ablation particle two-phase walls, the problem of the inability to accurately simulate compressible particle two-phase flow in existing technologies has been solved, thereby improving the accuracy and effective payload of aircraft design.

CN115982860BActive Publication Date: 2026-06-05CALCULATION AERODYNAMICS INST CHINA AERODYNAMICS RES & DEV CENT
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Patent Information

Application Number
CN202310112960.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-02-10
Publication Date
2026-06-05
Estimated Expiration
2043-02-10

AI Technical Summary

Technical Problem

Existing technologies cannot accurately simulate the two-phase flow problem of compressible particles, resulting in redundancy in aircraft design and low payload capacity.

Method used

A parallel computational method for numerical simulation of two-phase wall turbulence involving ablation particles is adopted. The flow field information is calculated by calling the fluid solver in each sub-time step, the particle information is read by a dynamic array, and the particle information is updated by using a single particle solver. Combined with MPI communication to exchange particle entry and exit information of different parallel blocks, dynamic memory allocation and information updating of particles are realized.

Benefits of technology

It accurately realizes the direct numerical simulation of compressible ablation particle two-phase flow, solves the problem of inaccurate simulation in traditional methods, and improves the accuracy and effective payload of aircraft design.

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Abstract

The application relates to the technical field of aircrafts, and discloses an ablative particle two-phase wall turbulent flow numerical simulation parallel computing method, equipment and medium, the method comprising the following steps: in each sub-time step, calling a fluid solver to calculate flow field information; using a dynamic array to read particle information from a dynamic linked list array one by one; calling a single particle solver to update the particle information read by the dynamic array, and updating the updated particle information to the dynamic linked list array one by one; after traversing all the particles in the dynamic linked list array, entering the next sub-time step, until the time loop is completed, and outputting all the information of the flow field and the particles. In this way, the direct numerical simulation of compressible ablative particle two-phase flow can be accurately realized, the problem that the prior art does not have the direct numerical simulation of compressible particle two-phase flow at all is solved, and the blank of the direct numerical simulation of compressible ablative particle two-phase flow in China is filled.
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