![]() ![]() Then you have to manually start the calculation if required. To fix the spiral cross section extents you could uncheck the "Automatic" calculation right top. Spiral cross section extents are updated automatically if anything on the inlet side or any spiral properties are modified. The flow angle at the volute inlet must be positive and should be small ( spiral wrap angle φĪdapt circumferential position of the cross section definition ("Volute/ Cross section") or spiral wrap angle ("Volute/ Spiral areas").Ĭross section sizes are not fixed and adapt to external flow properties. Spiral sections cannot be calculated due to invalid inflow direction, i.e. Spiral contour calculation failed due to invalid inflow conditions. Increase c u or reduce Q i to decrease flow angle. See full entry for 'coastal' Collins COBUILD Advanced Learner’s Dictionary. ![]() While c m is calculated from volume flow Q iĬircumferential velocity is set directly. (kostl ) adjective ADJECTIVE noun Coastal is used to refer to things that are in the sea or on the land near a coast. Florida Resource Management Plan Amendment for the Jupiter Inlet Lighthouse Outstanding Natural Area and Environmental Assessment (RMPA/EA) Created Date: 8:42:01 AM. Spiral sections cannot be calculated due to invalid reference parameters with a resulting flow angle of more than 70°.įor velocity-based design rules the flow angle at inner radius results from c m and c u. See also the hints to the error "It's not possible to calculate spiral contour exactly.". ![]() the ratio H5/B5 is too low or too high.Ĭheck the properties of the end cross section. The properties of the end cross section are not reasonable, e.g. Try to select another cross section shape. Too narrow cross section shape can result in unreasonable high height-width-ratio. Spiral sections cannot be calculated due to unusual inflow direction or volute cross section definition. During the throttling process no work is done by or on the system (dW 0), and usually there is no heat tranfer ( adiabatic) from or into the system (dQ 0). In fact, the throttling process is one of isenthalpic processes. Spiral contour could not be calculated exactly.Ĭheck geometry and "Volute/ Inlet definition". A throttling process is a thermodynamic process, in which the enthalpy of the gas or medium remains constant (h const). ![]()
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