Abstract
The NASA Kennedy Space Center Launch Services Program’s Universal Controls Analysis Tool (UCAT) is used to analyze the flight performance of a series of specific launch vehicles. In order to demonstrate the modeling tool as a unique Launch Services Program’s capability, a series of non-proprietary, generic launch vehicles that are available in open literature. Currently, the UCAT has various analytical models, and lookup tables for launch vehicles which do not yield high fidelity. The purpose of this paper is to link UCAT with ANSYS FLUENT which will be able to simulate a transient cold flow nozzle. This paper explains the steps used to validate the Analytical and CFD models based on experimental results of a conical cold flow nozzle. Then a compare the Analytical and CFD models for a larger cold flow nozzle. Finally, link UCAT with both analytical and CFD models, and compare their performances on a simple launch vehicle.
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