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Post-processing > Post processing with preconfigured views > Types of post-processing scenarios

Inverse Numerical Acoustics (L-Curve) scenario

The Inverse Numerical Acoustics (L-Curve) post-processing scenario lets you plot both the residual norms and tolerance values of the L-curve stacked in one view. In this view, you can also use the Select Value for Regularization probing mode option to extract tolerance values at each forcing frequency for a manual regularization in subsequent solutions. This pre-configured scenario is available for acoustic results in HDF5 file format.

Inverse Numerical Acoustics (L-Curve) scenario

Inverse Numerical Acoustics (L-Curve) - XY plot

For more information on extracting tolerance values, see Extract L-curve regularization values.

Selections for L-curve

You can choose to visualize the residual norms and tolerance values of the L-curve by:

  • Subcase, which lets you choose the subcase.

  • Frequency, which lets you choose the frequency.

  • Order Number, which lets you choose the order.Note: Appears when the Definition is set to Inverse Numerical Acoustics (L-Curve) - Order Cut.

Step through each selection

To view one selection after another, at the bottom of the Scenario Based Data-Visualization Navigator, click Displays the next iteration of the current Post Scenario or Displays the previous iteration of the current Post Scenario .

Learn more

Trim Analysis Results scenario (SOL 144)

Contour Plots scenario

Directivity Analysis scenario (Simcenter Nastran FEM acoustics and Acoustics BEM)

Duct Modes Transmission Coefficients scenario

Energy Contributions scenario (Simcenter Nastran FEM)

Equivalent Radiated Power scenario

Function Plots scenario

Grid Contribution scenario (Simcenter Nastran and MSC Nastran )

Matrix Comparison Plots scenario (Simcenter 3D NVH)

Maximum Analysis Frequency scenario (Acoustics BEM)

Motion Results scenario (Simcenter 3D Motion)

Waterfall to Order-Cut scenario (Simcenter Nastran FEM acoustics and Acoustics BEM)

Peakout Frequencies Plots scenario

Plotting contribution from panels, structural modes, fluid modes, and MATVs

Quality Metrics scenario

Random Results scenario (Simcenter Nastran FEM acoustics and Simcenter 3D Acoustics BEM)

Random VATV Forced Response Plots scenario

Ray Path Analysis scenario

Specialist Durability Function Definition scenario

Specialist Durability Plots scenario

Averaging scenario

Transmission Loss scenario (Simcenter Nastran FEM acoustics and Acoustics BEM)

Transfer Path Analysis (TPA) scenario (Simcenter Nastran FEM acoustics)

Force Transmissibility scenario (Simcenter Nastran FEM acoustics)

Point Mobility scenario (Simcenter 3D NVH)

Load Identification scenario (Simcenter Nastran FEM)

Look up more details

BEM post-processing scenarios parameters

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Inverse Numerical Acoustics (L-Curve) scenario, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/xid1961797 · retrieved 2026-07-17