Invention Publication
- Patent Title: Universal Wall Boundary Condition Treatment for K-Omega Turbulence Models
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Application No.: US18072947Application Date: 2022-12-01
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Publication No.: US20230153497A1Publication Date: 2023-05-18
- Inventor: Martin Sanchez-Rocha
- Applicant: Dassault Systemes Simulia Corp.
- Applicant Address: US RI Johnston
- Assignee: Dassault Systemes Simulia Corp.
- Current Assignee: Dassault Systemes Simulia Corp.
- Current Assignee Address: US RI Johnston
- Main IPC: G06F30/28
- IPC: G06F30/28 ; G06F17/13 ; G06N5/02 ; G06T17/20

Abstract:
Disclosed are techniques for simulating a physical process and for determining boundary conditions for a specific energy dissipation rate of a k-Omega turbulence fluid flow model of a fluid flow, by computing from a cell center distance and fluid flow variables a value of the specific energy dissipation rate for a turbulent flow that is valid for a viscous layer, buffer layer, and logarithmic region of a boundary defined in the simulation space. The value is determined by applying a buffer layer correction factor as a first boundary condition for the energy dissipation rate and by applying a viscous sublayer correction factor as a second boundary condition for the energy dissipation rate.
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