김경종
62 lines
2.6 KiB
Markdown
62 lines
2.6 KiB
Markdown
---
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type: concept
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title: "Midas FEA CFD Analysis"
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created: 2026-06-02
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updated: 2026-06-02
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address: c-000156
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aliases:
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- MIDAS FEA CFD
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- midas FEA wind CFD
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tags:
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- concept
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- finite-element-method
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- cfd
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- wind-loads
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- midas-fea
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status: current
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related:
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- "[[Midas-FEA-Analysis-Manual|Midas FEA Analysis Manual]]"
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- "[[Finite Element Heat Transfer and Field Problems]]"
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- "[[Abaqus Fluid Acoustic Eulerian and Particle Elements]]"
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- "[[Abaqus Eulerian and Particle Methods]]"
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sources:
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- "[[Midas-FEA-Analysis-Manual|Midas FEA Analysis Manual]]"
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source_refs:
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- source: "[[Midas-FEA-Analysis-Manual|Midas FEA Analysis Manual]]"
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raw_path: ".raw/MidasFEAAnalysisManual/"
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raw_files:
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- "MidasFEAAnalysisManual_050.md"
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- "MidasFEAAnalysisManual_002.md"
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md_indices:
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- 50
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- 2
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match: "heuristic-heading-keyword"
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confidence: low
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---
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# Midas FEA CFD Analysis
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## Definition
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Midas FEA CFD analysis is the manual's computational fluid dynamics workflow for wind-loading and aerodynamic response of civil structural sections, especially bridge-like two-dimensional sections.
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## How It Works
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The manual describes a structured two-dimensional mesh, compressible viscous Navier-Stokes equations, Favre-averaged RANS equations, two-equation turbulence models, density-based time marching, and finite-volume spatial discretization.
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Boundary conditions include far-field, solid wall, and symmetry conditions. Turbulence options include q-omega and k-omega SST/BSL type models. Numerical ingredients include local preconditioning for low-speed flow, Roe numerical flux, entropy correction, MUSCL extrapolation, limiters, steady AF-ADI, and unsteady dual time integration.
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Outputs include velocity, pressure, vorticity, turbulent viscosity or turbulence ratios, turbulent energy or intensity, and aerodynamic coefficients such as lift, drag, and moment.
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## Solver Development Notes
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- This CFD chapter is a useful multiphysics boundary reference, but it is not part of a minimal structural FE solver core.
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- For a custom structural solver roadmap, treat CFD as an external reference or later coupling target after structural elements, materials, dynamics, and contact are stable.
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- If implemented, use a proven finite-volume or CFD library for the flow solver rather than folding it into the structural element assembly path.
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## Connections
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- [[Finite Element Heat Transfer and Field Problems]] captures the broader field-problem theme.
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- [[Abaqus Fluid Acoustic Eulerian and Particle Elements]] and [[Abaqus Eulerian and Particle Methods]] are related production references, though they are not the same CFD formulation.
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