公开(公告)号：US12073154B2

公开(公告)日：2024-08-27

申请号：US17060264

申请日：2020-10-01

Applicant: Dassault Systemes Americas Corp.

Inventor： Sivapalan Senthooran ,  Mohamed Ibrahim Eldesouky ,  Robert Powell ,  Ales Alajbegovic

IPC: G06F30/28 ,  G06F111/04 ,  G06F111/10 ,  G06F113/08

CPC classification number: G06F30/28 ,  G06F2111/04 ,  G06F2111/10 ,  G06F2113/08

Abstract: Disclosed are computer implemented techniques for correcting for numerically generated pressure waves at an inlet of a simulation space. The techniques include receiving a model of a simulation space and applying an inlet pressure to an inlet of the simulation space. The applied inlet pressure generates fluctuating velocities that produce undesired, numerically-generated pressure waves. The numerically generated pressure waves are measured to establish a measured pressure history. The measured pressure history is subtracted from the applied inlet boundary pressure history to provide a set of boundary conditions. The process conducts a fluid simulation using the set of boundary conditions. The process repeats using a subsequent set of boundary conditions, until an iteration is reached where the measured pressures near the inlet are sufficiently small to compensate for undesired, numerically-generated pressure waves, and thereafter stores that subsequent set of boundary conditions to provide a corrected set of boundary conditions.