.ClaRa.Components.Furnace.BaseClasses.HopperBase.Geometry .ClaRa.Components.Furnace.BaseClasses.HopperBase.Geometrymodel Geometry = ClaRa.Basics.ControlVolumes.Fundamentals.Geometry.HollowBlock(flowOrientation = ClaRa.Basics.Choices.GeometryOrientation.vertical);