Solar Heating Space – Model Orientation

Latitude Orientation Method options

The following options are available when Orientation Method is set to Latitude.

Planet Vectors
Specify Vector	Lets you specify the two nonparallel vectors that will be used to orient the model in relation to the selected planet. With this option, you select two edges from your model, define a vector, and then assign it a direction.The first vector you define always points towards its target in the direction you select from the Aim at list. If the two orientations are not perpendicular, the second vector you select is not parallel to the direction you select from the Align with list, but it remains as aligned as possible.
Aim at****Align with	Assigns the aim at (1) and align with (2) vectors to orient the model. Both vectors originate from the model.Note: If you select Sun from the Aim at list, the solver simulates model rotation about the align with vector during the solution, such that the sun aiming vector points as nearly as possible towards the sun.
Solar Vectors
Day Segment	Specifies the portion of the day simulated in the analysis.Full DayModels the movement of the sun in the sky from sunrise to sunset at the specified Latitude and at the Time of Year specified on the Solar Flux tab.Partial DayModels the movement of the sun in the sky for the portion of the day you specify at the specified Latitude and at the Time of Year specified on the Solar Flux tab.Single PositionDefines the solar vector by specifying a time value in the Local Solar Time box.
Start Position****Final Position	Available when Day Segment is set to Partial Day.Specify the initial and final position of the sun during the analysis.Local Solar TimeSets an exact start or end time in the Local Solar Time box.SunriseBegins the analysis at sunrise.SunsetEnds the analysis at sunset.Angle from MidnightSets the initial or final position of the sun in terms of an angle from midnight as calculated for the selected Latitude. You specify the value in the Angle from Midnight box.
Analysis Time at Start Position	Available when Day Segment is set to Partial Day.Sets a time when you want the first solar heat loads to be calculated during the analysis. This value should be smaller than the End Time value specified on the Transient Setup tab of the Solution dialog box.By default, the software calculates the first heat loads when the analysis begins.
Number of Equal Angle Intervals	Available when Day Segment is set to Full Day or Partial Day.Sets the number of points between sunrise and sunset at which the software calculates solar heating.

Sun Planet Vectors Orientation Method options

The following options are available when Orientation Method is set to Sun Planet Vectors.

Sun Planet Vectors
Coordinates	Specifies the coordinate system in which to define the time-varying vectors.CartesianDefines the time-varying vectors in terms of Cartesian coordinates.CylindricalDefines the time-varying vectors in the cylindrical coordinates.
Specify Field	Lets you define time-varying vectors with either cylindrical or Cartesian coordinates.

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Solar Heating andSolar Heating Space

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Defining model orientation for solar heating

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Solar Heating Space – Model Orientation, Simcenter 3D 2021.1 Series

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