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    • Documentation

    SimScale DocumentationAnalysis TypesOutputs by Analysis Type

    Outputs by Analysis Type

    This document lists all the possible result outputs in terms of physical quantities/variables per analysis type after a simulation is performed in SimScale.

    Analysis Types

    Fluid Dynamics

    Simulations carried out in the SimScale platform can be post-processed via our online integrated post-processing environment. In addition, OpenFoam and LBM Solver results can also be exported as an OpenFOAM case file that can be downloaded and stored locally, and post-processed in 3rd party applications such as the open-source ParaView post-processor.

    To learn more about the result control feature for fluid flow analysis in SimScale please refer to this page.

    Incompressible

    Fields

    QuantitySymbolTypeSI UnitAvailability
    Pressure\(p\)Scalar\(Pa\)Default
    Velocity\(U_x\), \(U_y\), \(U_z\)Vector\(m/s\)Default
    Turbulent kinetic energy\(k\)Scalar\(m^2/s^2\)Default
    Turbulent kinematic viscosity (nut)\(\nu_{t}\)Scalar\(m^2/s\)Default
    Turbulent dissipation rate\(\epsilon\)Scalar\(m^2/s^3\)Default
    Turbulent specific dissipation rate (omega)\(\omega\)Scalar\(1/s\)Default
    Wall shear stressVector\(N/m^2\)Requested
    VorticityVector\(1/s\)Requested
    Dimensionless wall distance\(y+\)ScalarRequested
    Reynolds stress tensorTensor\(N/m^2\)Requested
    Total pressure\(p_{t}\)Scalar\(Pa\)Requested
    Pressure Coefficient\(C_{p}\)ScalarRequested
    Table 1: List of outputs for Incompressible analysis type

    Data Plots

    Data plots are displayed as 2D plots on the platform with the field against time in the x. The plots can be downloaded in many types of images, but importantly, they can be downloaded as CSV files for further processing.

    • Area averages and Area Integrals: All default fields.
    • Probe points: All default fields.
    • Forces and moments: Pressure, viscous, porous, and total forces and moments on a selection of faces. Total moment can be interpreted as torque when calculated on a set of rotating faces and for any other arbitrarily selected surface it is the sum of calculated moments (pressure+viscous+porous)
    • Forces and moment coefficients: Lift, drag, and moment coefficients on a selection of faces.
    visualization and download of a velocity data per iteration in simscale
    Figure 1: Viewing a data plot and saving the data as a .csv file

    Compressible

    Fields

    QuantitySymbolTypeSI UnitAvailability
    Pressure\(p\)Scalar\(Pa\)Default
    Velocity\(U_x\), \(U_y\), \(U_z\)Vector\(m/s\)Default
    Temperature\(T\)Scalar\(K\)Default
    Density\(\rho\)Scalar\(kg/m^3\)Default
    Turbulent kinetic energy\(k\)Scalar\(m^2/s^2\)Default
    Turbulent kinematic viscosity (nut)\(\nu_{t}\)Scalar\(m^2/s\)Default
    Turbulent dissipation rate \(\epsilon\)Scalar\(m^2/s^3\)Default
    Turbulent specific dissipation rate (omega)\(\omega\)Scalar\(1/s\)Default
    Turbulent thermal diffusivity (alphat)\(\alpha_t\)Scalar\(kg/ms\)Default
    Wall shear stressVector\(N/m^2\)Requested
    Dimensionless wall distance\(y+\)ScalarRequested
    Reynolds stress tensorTensor\(N/m^2\)Requested
    Table 2: List of outputs for Compressible analysis type

    Data Plots

    • Area averages and Area Integrals: All default fields.
    • Probe points: All default fields.
    • Forces and moments: Pressure, viscous, porous, and total forces and moments on a selection of faces. Total moment can be interpreted as torque when calculated on a set of rotating faces and for any other arbitrarily selected surface it is the sum of calculated moments (pressure+viscous+porous)
    • Forces and moment coefficients: Lift, drag, and moment coefficients on a selection of faces.

    Convective Heat Transfer

    Fields

    QuantitySymbolTypeSI UnitAvailability
    Pressure\(p\)Scalar\(Pa\)Default
    Non-hydrostatic Pressure (Modified Pressure)\(p\_rgh\)Scalar\(Pa\)Default
    Velocity\(U_x\), \(U_y\), \(U_z\)Vector\(m/s\)Default
    Temperature\(T\)Scalar\(K\)Default
    Density\(\rho\)Scalar\(kg/m^3\)Default
    Turbulent kinetic energy\(k\)Scalar\(m^2/s^2\)Default
    Turbulent kinematic viscosity (nut)\(\nu_{t}\)Scalar\(m^2/s\)Default
    Turbulent dissipation rate\(\epsilon\)Scalar\(m^2/s^3\)Default
    Turbulent specific dissipation rate (omega)\(\omega\)Scalar\(1/s\)Default
    Turbulent thermal diffusivity (alphat)\(\alpha_t\)Scalar\(kg/ms\)Default
    Net radiative heat flux (Radiation toggled on)Scalar\(W/m^2\)Default
    Mean radiant temperature (Radiation toggled on) Scalar\(K\)Default
    Passive Scalar (Passive species toggled on)ScalarDefault
    Wall shear stressVector\(N/m^2\)Requested
    Dimensionless wall distance\(y+\)ScalarRequested
    Predicted Mean Vote (PMV)ScalarRequested
    Predicted Percentage of Dissatisfied (PPD)ScalarRequested
    Table 3: List of outputs for Convective analysis type

    Data Plots

    • Area averages and Area Integrals: All default fields.
    • Probe points: All default fields.
    • Forces and moments: Pressure, viscous, porous, and total forces and moments on a selection of faces. Total moment can be interpreted as torque when calculated on a set of rotating faces and for any other arbitrarily selected surface it is the sum of calculated moments (pressure+viscous+porous)
    • Forces and moment coefficients: Lift, drag, and moment coefficients on a selection of faces.

    Conjugate Heat Transfer v2.0

    Fields

    QuantitySymbolTypeSI UnitAvailability
    Pressure\(p\)Scalar\(Pa\)Default
    Non-hydrostatic Pressure (Modified Pressure)\(p\_rgh\)Scalar\(Pa\)Default
    Velocity\(U_x\), \(U_y\), \(U_z\)Vector\(m/s\)Default
    Temperature\(T\)Scalar\(K\)Default
    Density\(\rho\)Scalar\(kg/m^3\)Default
    Turbulent kinetic energy\(k\)Scalar\(m^2/s^2\)Default
    Turbulent kinematic viscosity (nut)\(\nu_{t}\)Scalar\(m^2/s\)Default
    Turbulent dissipation rate\(\epsilon\)Scalar\(m^2/s^3\)Default
    Turbulent specific dissipation rate (omega)\(\omega\)Scalar\(1/s\)Default
    Turbulent thermal diffusivity (alphat)\(\alpha_t\)Scalar\(kg/ms\)Default
    Enthalpy\(h\)Scalar\(J/kg\)Default
    Net radiative heat flux (Radiation toggled on)Scalar\(W/m^2\)Default
    Mean radiant temperature (Radiation toggled on) Scalar \(W/m^2\) Default
    Wall shear stressVector\(N/m^2\)Requested
    Dimensionless wall distance\(y+\)ScalarRequested
    Predicted Mean Vote (PMV)ScalarRequested
    Predicted Percentage of Dissatisfied (PPD)ScalarRequested
    Table 4: List of outputs for Conjugate Heat Transfer analysis type

    Data Plots

    • Area averages and Area Integrals: All default fields.
    • Probe points: All default fields.

    Multiphase

    Fields

    QuantitySymbolTypeSI unitAvailability
    Pressure\(p\)Scalar\(Pa\)Default
    Non-hydrostatic pressure (Modified Pressure)\(p\_rgh\)Scalar\(Pa\) Default
    Velocity\(U_x\), \(U_y\), \(U_z\)Vector\(m/s\)Default
    Turbulent kinetic energy\(k\)Scalar\(m^2/s^2\)Default
    Turbulent kinematic viscosity (nut)\(\nu_{t}\)Scalar\(m^2/s\) Default
    Turbulent specific dissipation rate (omega)\(\omega\)Scalar \(1/s\)Default
    Density\(\rho\)Scalar\(kg/m^3\)Default
    Phase fraction\(T1\)ScalarDefault
    Table 5: List of outputs for Multiphase analysis type

    Data Plots

    • Area averages and Area Integrals: All default fields.
    • Probe points: All default fields.
    • Forces and moments: Pressure, viscous, porous, and total forces and moments on a selection of faces. Total moment can be interpreted as torque when calculated on a set of rotating faces and for any other arbitrarily selected surface it is the sum of calculated moments (pressure+viscous+porous)
    • Forces and moment coefficients: Lift, drag, and moment coefficients on a selection of faces.

    Subsonic

    Fields

    QuantitySymbolTypeSI unitAvailability
    Pressure\(p\)Scalar\(Pa\)Default
    Velocity\(U_x\), \(U_y\), \(U_z\)Vector\(m/s\)Default
    Relative velocityVector\(m/s\)Simulation with rotating parts
    Mass averaged pressure\(pt\ [mass\_averaged]\)Scalar\(Pa\)Default
    Volumetric flow rate\(Q_v\)Scalar\(m^3/s\)Default
    Mass flow rate\(Q_m\)Scalar\(kg/s\)Default
    Density\(\rho\)Scalar\(kg/m^3\)Default
    DisplacementScalar\(m\)Simulation with rotating parts, Multiphase
    Phase fraction\(T1\)Scalar–Multiphase
    Temperature\(T\)Scalar\(K\)Compressible
    Total Temperature\(T_{t}\)Scalar\(K\)Compressible
    Table 6: List of outputs for Subsonic analysis type

    Data Plots

    • Area averages: Pressure, mass averaged total pressure, volumetric flow rate, mass flow rate.
    • Pressure difference between assigned inlet and outlet face.
    • Forces and moments: Pressure, viscous, and total forces and moments on a selection of faces. Total moment can be interpreted as torque when calculated on a set of rotating faces and for any other arbitrarily selected surface it is the sum of calculated moments (pressure+viscous). Power about the axis of rotation.

    Incompressible LBM

    Fields

    The incompressible LBM can also be downloaded, stored locally and post-processed in 3rd party post-processors such as the open-source ParaView. The export format for this solver is the encase format.

    QuantitySymbolTypeSI unitAvailability
    Pressure\(p\)Scalar\(Pa\)Default
    Velocity\(U_x\), \(U_y\), \(U_z\)Vector\(m/s\)Default
    Turbulent kinetic energy\(k\)Scalar\(m^2/s^2\)Default
    Dimensionless wall distance\(y+\)ScalarDefault
    VorticityVector\(1/s\)Requested
    Friction velocityVector\(m/s\)Requested
    Surface normalRequested
    Table 7: List of outputs for Incompressible LBM analysis type

    Data Plots

    Data plots are displayed as 2D plots on the platform with the field against time in the x. The plots can be downloaded in many types of images, but importantly, they can be downloaded as CSV files for further processing. There are also options to do statistical analysis on the time-dependent data, including mean, max, min, standard deviation, and root mean square (RMS).

    • Forces and moments, Pressure forces and moments on a selection of faces.
    • Probe points: All default fields.

    Pedestrian Wind Comfort

    Fields (overall)

    The pedestrian wind comfort analysis type is based upon the incompressible LBM solver\(^1\) and can also be downloaded, stored locally and post-processed in 3rd party post-processors such as the open-source ParaView. The export format for this solver is the encase format. These fields for pedestrian comfort will be interpolated 2D plots.

    Results According To Comfort Criteria:

    • Lawson (old)
    • Lawson LDDC (London spec)
    • NEN8100
    • Davenport

    Fields (Individual Directions)

    QuantitySymbolTypeSI unitAvailability
    Pressure\(p\)Scalar\(Pa\)Default
    Velocity\(U_x\), \(U_y\), \(U_z\)Vector\(m/s\)Default
    Velocity magnitude\(UMag\)Scalar\(m/s\)Default
    Turbulent kinetic energy\(k\)Scalar\(m^2/s^2\)Default
    Table 8: List of outputs for Pedestrian Wind Comfort analysis type

    Solid Mechanics

    The output results for solid mechanics analysis types are sophisticated and well explained in our standard document on result control for structural analysis:

    Result Control – Structural Analysis

    References

    Last updated: December 27th, 2023

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